Transport technologies!?! Part 2

This previous post considered wider socio-economic factors which might shape the development/deployment of transport technologies, namely 1) denser cities, 2) policy settings, and 3) demographics. In this post I now discuss some more specific issues that are relevant to transport technologies, specifically:

  1. Economies of density
  2. Costs: Fixed versus variable
  3. Complements versus substitutes
  4. Conclusions: The Spruce Moose?

The takeaway message from this post is that the future is complex and uncertain. D’uh … read on for enlightenment!

1. Economies of density

The Prime Minister’s recent speech, in which he announced funding for the City Rail Link and the East-West Link, is an example of how policy settings can respond to wider socio-economic factors, such as population growth. Auckland’s rapid growth means that public investment in underground passenger rail stacks up more now than it perhaps has done in the past. As a result changed, Auckland’s transport network is set to change in a rather profound way.

Why has Auckland’s growth helped make the case for the CRL? Well, passenger rail has relatively high fixed costs. This in turn means that passenger rail experiences so-called economies of scale (or more accurately density). The phrase “economies of density” is used to describe situations where marginal costs are below average costs. This means that average costs fall as demand increases. Fixed costs like rolling stock and train stations all contribute economies of density in passenger rail.


Last week saw another example of “economies of density” in the context of New Zealand’s transport system, although this time the investment originates with the private sector. Emirates announced that – from this March – they will begin direct flights between Auckland and Dubai (NB: Apparently Qatar Airways is considering similar moves). Direct flights to Dubai will shave approximately 3 hours off travel-times between New Zealand and a number of destinations in the Middle East and Africa.


Economies of density lead to virtuous/vicious cycles: Higher demand begets lower costs, which begets higher demand etc (and vice versa). That’s why they are sometimes called “positive feedback loops”. Domestic air travel in New Zealand provides a nice example of virtuous cycles at work. Here, a combination of falling fuel costs, higher visitor numberslarger and more efficient planes, and competition has seen airfares fall (NB: I’m waiting on updated inflation data before making a more definitive statement). Many transport technologies, especially those where passengers share vehicles and/or facilities, tend to experience economies of density.

Private vehicles also experience economies of density to some degree. High levels of car ownership, for example, makes it easier to find a petrol station when you need one. The key difference between private vehicles and other transport technologies, however, is the degree to which road networks experience congestion. Beyond critical levels of demand, traffic congestion increases rapidly, i.e. congestion is a convex (upwards sloping) function. Congestion externalities are an example of dis-economies of density, and it’s one that is apparent in most cities of Auckland’s size and larger.

Congestion externalities are also an issue that things like driverless and/or electric vehicles do not resolve. Road pricing does solve congestion, although this is achieved by suppressing demand. So when people argue that electric and/or driverless cars will reduce demand for PT I’m somewhat sceptical, because these technologies don’t seem to change the fundamental dis-economies of scale that afflict urban road networks.

And when one thinks of the growth that Auckland will experience over the next 20 years, then economies of density are actually rather important. Perhaps more important than new technologies themselves …

2. Costs: Fixed versus variable costs

Our previous discussion noted that economies of density/scale arise in the presence of fixed costs. In this section I want to distinguish more carefully between fixed and variable costs. One useful way to think about transport costs is using a matrix which has “fixed/variable” versus “private/public” dimensions (NB: The latter is not relevant to this discussion, but can be for discussions of transport pricing more generally).

Cost table


Of course, such distinctions involve some arbitrary judgements. Parking for example, is both a private and a public cost. I’ve categorised it as “public” simply because a proportion of parking costs are subsidised by society. Despite the need for such judgements, I think this type of cost matrix is quite useful for classifying costs and subsequently analysing how changes in transport technologies (or policy settings for that matter) might impact on demand.

Using this framework (and a bunch of heroic assumptions) I have constructed the following graph to illustrate how the costs of cars compares to taxis and public transport, and how costs vary with distance measured in kilometres travelled per annum. PT fares are capped at the price of 12 monthly passes at $220 per month).

C1 Total private costs (c)


Here we see that cars become cheaper than taxis for people who are travelling more than 2,500 kilometres per year. Of course, the orange line is just one possible instance of the cost curve for cars. Depending on their preferences and circumstances, some people may opt to buy a cheaper car with higher operating costs, which would reduce the intercept but bump up the slope of the orange line. Nevertheless, the general point remains: For people who travel a lot, owning your own car makes more sense than using taxis.

Now consider a future scenario where electric driverless vehicles (“robot cars” for short) are available. How might they impact on these cost curves? Well, let’s assume robot cars cost 50% more than conventional cars; are 50% cheaper to park; and cost 25% less per kilometre to operate/maintain than conventional cars. When robot cars are used for taxis, they remove the need for a driver and increase higher utilisation. For the sake of the argument, let’s assume that the cost of using taxis drops by 50% with the advent of robot cars.

Under these assumptions, the cost curves presented above can be re-calculated as follows.

C2 Total private costs (future)


In this scenario taxis suddenly become cheaper than private cars for people who travel less than 10,000 kilometres per annum. By way of comparison, that’s slightly more than the average New Zealander travels per year. By pushing up fixed costs but reducing variable costs, robot cars seem to dramatically increase the scope for cheap taxi services to meet the demand for car travel for a wider range of households.

So consider this “what if” scenario: What if the primary impact of robot cars was to reduce the cost of taxis? In such a scenario would we need more or less PT? This leads me nicely onto the next topic …

3. Complements versus substitutes: A or B versus A & B?

When a new transport technology hits the market, one of the key questions we should seek to answer is whether it will complement or substitute existing technologies. The answer is not always obvious, but it is always important.

To provide an example, consider whether taxis increase or decrease demand for public transport. Many people think taxi’s compete with public transport, i.e. the two are substitutes. Rodney Hide, for example, had this to say on the matter (source; emphasis added):

[Uber is] … a whole new way of doing business. It disempowers bureaucrats and puts customers and drivers in charge. I love it. The public transport of the future won’t be clapped-out trains but driverless cars and Uber. It may happen much quicker than we now can possibly imagine. We won’t own a car. A driverless car is always just a minute away, ready to whisk us to our destination.

According to U.S. researchers, however, taxis are complements for public transport. This article provides a nice synopsis of relevant issues, while more detailed analysis is available here. The last report identifies “primary factors” for taxi demands, including 1) the number of workers commuting by subway and 2) the number of households that don’t own vehicles. Of course, places like New York have some attributes which are – for better or worse – not relevant to the New Zealand context …


Given that Auckland doesn’t have the density or subway system which exists in NYC, could Rodney be correct with his crystal ball-gazing? The answer, I think, is both “yes and no”. More specifically, taxis will compete with public transport in some places, while complementing it in others.

I think this article puts the distinction rather nicely when it says:

It is likely that these [taxi] services will just exacerbate the differences that already exist in the quality of public transit in different areas.  The localities that invested and ran their systems well won’t be as impacted.  In the areas where frustration is higher, the problems will surely become worse when revenues and ridership decline.  And the biases and history that impact why certain systems are the way they are will become more apparent.

The complements versus substitutes issue is relevant to many debates about new transport technologies. Some people seem convinced not only that driverless cars are imminent, but that they will drag people away from PT. I’m personally not so sure.

Conclusions:  “The Spruce Moose”?

One of my favourite Simpsons episodes starts with Mr Burns opening a casino. At the end of the episode, when the whole sordid venture is crashing down, an increasingly erratic Mr Burns pulls a gun on his ol’ mate Smithers and orders him to get into the model bi-plane affectionately known as the “Spruce Moose”.



While hilarious, the behaviour of Mr Burns is not something we should emulate when it comes to transport policy. History is littered with unfortunate examples of politicians picking winners well in advance of demand. Indeed, such attitudes gave us 50 years of motorway building in Auckland, replete with well-documented examples of optimism bias and strategic misrepresentation. My point? Let’s not hold a proverbial gun to our own heads and over-commit to any particular kind of transport technology. Instead, let’s embrace the transport technologies we have, and be passionate about using them more efficiently, while keeping tabs on new transport technologies as they evolve.

There is no doubt that we live in exciting times: New Zealand is growing and seems to be experiencing economies of density, at least in the transport sector. Costs of air travel are falling, while other technologies, such as passenger rail, are more viable than they have perhaps been in the past. Robot cars and trucks seem likely to emerge onto the scene at some point, helping our car fleet to become smaller, quieter, cleaner, and generally more efficient than it is currently.

Meanwhile, rapid developments in telecommunications (which I intend to discuss in a later post) are changing the way that goods and services are delivered. This change is occurring at astounding speeds and in amazing ways. In a few years Uber has grown to become one of the world’s most valuable transport companies. In Europe, a start-up called “Blah blah car” has raised hundreds of millions in venture capital to expand its business, one which is already moving millions of people around the continent at very affordable prices. I can book any one of 5 trips from Amsterdam to Brussels tomorrow for about 10 Euro.

In such a dynamic and rapidly changing environment it’s hard to know what to do. And that’s kind of the point: There’s a risk that we over-adjust to new technologies, just like the motorway builders did in Auckland 50 years ago. What I would do, however, is ask some hard questions “around the edges” of what we are currently doing. And perhaps consider delaying some projects slightly in light of the uncertainty.

Indeed, when it comes to the CRL, my main criticism of the National Government’s requirements for accelerating funding was that similar conditions were not also attached to other large transport projects. Appropriately specified triggers would seem to be useful adjunct to existing benefit-cost analysis and provide a more precise understanding of when work on a particular project should go ahead (NB: Of course there are other factors to consider, such as interest rates).

In an upcoming post I will talk more about emerging technologies for non-car transport modes; that stuff is so exciting it deserves its own post.

NZTA and a Rail Harbour Crossing

The issue of another road crossing of the harbour has been one we’ve discussed for quite some time. It’s a project that many Aucklanders like to think makes sense but that when you look deeply at the details it’s not so clear it’s a good idea. Without going over everything again – you can read some of our old posts on the subject – the project is hugely expensive and yet doesn’t actually appear to provide that much benefit.

In fact the impact seems to range from actually make some key things worse – to at best not actually changing all that much. It is expected that any road tunnel would plug in directly to the Central Motorway Junction and therefore only be used by those travelling through the city or to the connections with Grafton Gully or West Auckland. That would leave the existing Harbour Bridge as a giant off-ramp.

In fact it is actually likely to undermine many of the goals the council have been striving to achieve such as increased use of public transport and a more people friendly city centre. Both will be much more difficult to achieve if a firehose of traffic is turned on to the CBD.


From Sydney but appropriate here too

If spending $4-6 billion to undermine your city’s goals seems stupid, equally so is the more likely alternative version from the NZTA.

One thing that is widely accepted is the need to improve the rapid transit options across the harbour. The Northern Busway is fantastic however it’s missing any priority across the bridge despite buses carrying around 40% of the people going over it AM peak. They would use AWHC to finally dedicate some space on the bridge for PT but the actual number of vehicle lanes across the harbour will be about the same as they are now. In that case we end up spending a huge amount of money to add no vehicle capacity and just to add some bus lanes. It begs the question of why bother, why not just leave the bridge as is and build a better and cheaper dedicated PT crossing.

Because of the need to improve rapid transit options we’ve long advocated for a rail first option to be considered. This doesn’t mean we can’t build road tunnels in the future should they be needed but along with Skypath, rail tunnels more cheaply, directly and immediately address the modes missing across the harbour.

Skypath Consent - From Westhaven

And we’re not the only ones. The Campaign for Better Transport have created a petition calling for a rail only option to be considered. It’s managed to pick up a good amount of media coverage and forced some interesting statements from the NZTA and the mayor. Reading between the lines and combined with what we’ve heard it highlights a concerning situation.

First up from the North Shore times

But NZTA Auckland regional director Ernst Zollner says Pitches is “misleading” people.

Rail hasn’t been ruled-out, he says.

Although harbour crossing route protection work is underway, NZTA doesn’t know precisely when it will be needed or what form it will take, Zollner says.

Previous proposed plans include twin vehicle tunnels future-proofed for rail.


An Auckland Transport spokesman says a public transport study anticipating future growth will be completed mid next year.

The agency which manages local roading connected to NZTA’s motorway network, says it’s investigating how public transport options would integrate into future connections.

Auckland Mayor Len Brown says central government has committed to starting a second harbour crossing within seven years.

Rail will either be part of the second crossing or complementary to it, Brown says.

Another proposal would see harbour bridge lanes repurposed to carry light rail to and from the North Shore.

The NZTA are intending to lodge designation documents for the crossing this year. That means there is no way they can be intending to include rail options within their plans. This matches with what we’ve heard elsewhere that they intend on building their road tunnels and leave the rail options to AT/council to sort out as a separate project. Despite what the mayor or AT say there is no way they’ll be able to justify spending huge sums of money on a rail crossing to the shore if we’ve just spent $4-6 billion on a road crossing.

The second piece is from the Central Leader

“At that point in time they either will build the capability for rail within the tunnels or as correlative part of it,” Brown said.

But the New Zealand Transport Agency (NZTA) which constructs state highways says no decisions have been made.

Auckland regional director Ernst Zollner said NZTA and local agency Auckland Transport were currently working to protect a future route for an additional harbour crossing.

“While we don’t yet know when it will be required, and precisely what form it will take, in a rapidly growing region it’s essential that we protect and keep our future options open,” he said.

The northern busway serving the suburbs north of the bridge had been a huge success, and one of the benefits of a second crossing would be to continue it across the harbour.

“(It) could then also be used for rail or other innovative public transport options in future,” Zollner said.

Again this all but confirms there is no intention to build rail as part of the next harbour crossing. At best it is happening as an afterthought and only once we’ve sunk billions into some road tunnels and massively upgrading the motorways either side – something the NZTA are being very quiet about. I suspect the only reason they’ll even consider having light rail on the bridge is that after they’ve built the road tunnels they’ll revoke the state highway designation and hang the bridge asking with its expensive maintenance costs over to AT.

The AWHC appears to be a classic case of the same gung-ho roads first approach that has left Auckland in such a mess for so many decades. So let’s build a great PT crossing first and then see if we still need more traffic lanes across the harbour.

Investment in Cycling Infrastructure: What is it Good For?

While the answers to this question are largely sell-evident, it’s great that NZTA have recently released a summary of their view: Benefits of Investing in Cycling in New Zealand.

Follow the link for the full PDF, below is a summary of the seven ways NZTA have identified as beneficial. Followed up by a few images that do the same thing.



1. Investing in cycling is giving people what they want

People want cycling infrastructure. Many people say they’d like to cycle more, especially if separated cycling infrastructure was provided.

2. Cycling makes towns and cities really liveable

Cycling improves quality of life in towns and cities. ‘Quality of life’ rankings consistently show bike-friendly cities at the top.

3. Cycling makes travelling around urban areas better for everyone

More people cycling potentially improves traffic flow so travel times are shorter, more predictable and reliable, and the transport network performs better. Bicycles are considered to impose 95 percent less impact on travel flow than an average car.

Getting just a few people onto bikes can15 make a di erence to tra c ows. On the congested 5km Petone to Ngauranga section of State Highway 2, for example, research suggests that only 10-30 vehicles out of the 250-280 vehicles occupying the space at congested times are causing the congestion.16 Evaluation of Hastings’ iWay cycling network indicates there was a 3.6 percent reduction in tra c volumes soon after it was built.17

4. Cycling is great for the local economy

Cycling saves people money to spend in their local communities. With no fuel, registration, warrant of fitness and parking costs, and much lower purchasing, maintenance and insurance costs compared to operating a car, people who cycle have more money to spend on other things.

Cycling potentially also boosts retail spend. Various studies have shown that cycling infrastructure can lead to an increase in retail sales.25 People who cycle have been found to be more likely to stop and visit shops more often, and to spend more money at those shops over time, than people who drive.26 Cycleways that run past shop doors can be a very good thing for retailers.

5. More cycling means reduced costs for the council

An increase in cycling saves councils money. This is especially clear where populations are expected to grow. In Christchurch, for example, where 50,000 additional car trips per day are predicted in the city by 2041 unless there is a mode shift to walking, cycling and public transport31, more cycling would mean reduced costs for additional road capacity, maintenance and operations.

6. Cycling is great for the environment overall

A small reduction in short vehicle trips potentially generates signi cant reduction in carbon emissions. Shifting 5 percent of car trips to bicycle could reduce emission impacts by up to 8 percent.33 Similarly, reducing trips by car can reduce the amount of other air pollutants.

7. Cycling makes people healthier and more productive

Cycling reduces the incidence of a range of serious illnesses.

In New Zealand, physical inactivity contributes to around 8 percent of all deaths37, and one in three adults and one in ve children are overweight38. The Ministry of Health reports that only 50.5 percent of New Zealand adults are regarded as sufficiently active for health benefits and physical inactivity is the second leading risk factor of disability adjusted life years.























Will the proposed Waitemata Harbour Crossing be good for drivers?

There are many reasons to be concerned about the plan to add more road lanes across Auckland’s Waitemata Harbour: from the extreme cost of building such big tunnels and interchanges [$5-$6 billion and four times as much as just building rail tunnels], to the undesirable flooding of city streets and North Shore local roads with even more cars, to the increase in air pollution and carbon emission this will create, the loss of valuable city land to expanded on and off ramps and parking structures, to the impact on the harbour of exhaust stacks and a supersized motorway on the Shore, to the pressure this will put on the rest of the motorway system particularly through the narrow throat of Spaghetti Junction. It is both the most expensive and least efficient way to add capacity across this route, and if resilience is the aim then the double-down on reliance the motorway system rather works against this. This one project will simply crowd out any other changes we could make of scale in Auckland or the country for years; yet it changes almost nothing; it simply enables more vehicles to travel across a short point in the middle of the city, yet this is by no means an obviously good thing: The list of unwanted outcomes from the current proposal is so extensive that the benefits had better be so extraordinary and so absolutely certain in order to balance them all.

But perhaps there is no greater reason to not do it than that it simply won’t improve things for drivers.

Really? How can this be? As well the obvious problem with this project that it will add super capacity for a short stretch of the motorway network and therefore just shifts any bottleneck to the next constriction, particularly the extremely difficult to expand CMJ or Spaghetti Junction, there’s also a bigger structural problem with building more roads to fight traffic congestion. It can’t work. We all have experienced being stuck in traffic on a motorway and sat there wishing if only the authorities had just built an extra lane all would be sweet, well it would, wouldn’t it? However the evidence from all round the world shows that while that may help for a little while it never lasts, especially in a thriving city and especially if these extension starve the alternatives of funding, condemning ever more people to vehicle trips on our roads. Soon we’re stuck again wishing for another few billions worth of extra lanes all over again.

I-10 Katy Freeway

Here’s how it works; each new lane or route simply incentivises new vehicle journeys that weren’t made before; a well known phenomenon called induced demand. Road building is also traffic building, the more we invest in roads the more traffic and driving we get, and not just on the new road; everywhere. Traffic congestion is, of course, simply too much traffic, too much driving. Take for example the I-10 in Houston, the Katy Freeway. In that famously auto-dependent city they freely spent Federal money and local taxes disproportionately on just one way to try to beat traffic congestion, the supply side: ever more tarmac [Houstonians can boast the greatest spend per capita on freeways in the US]. The I-10 which began at six to eight lanes has just had its latest ‘upgrade’ to no fewer than 26 lanes! That ought to be more than enough in a flat city with multiple routes and only half the population Los Angeles. So what happened? According to recent analysis it has made driving this route significantly worse.

Traveling out I-10 is now 33% worse – almost 18 more minutes of your time – than it was before we spent $2.8 billion to subsidize land speculation and encourage more driving.

But hang on, those trips must need to be made, right, or people wouldn’t make them. Well in the absence of direct pricing it is hard to know exactly how valuable these new trips are. So first they really ought to price routes like the I-10 properly to reduce unnecessary journeys clogging up the valuable ones, like the truckies and trades [it is partially tolled now]. But the real problem in cities like Houston is the absence of any useful alternatives to driving [an earlier extension of I-10 took out an existing rail line!]. Providing those alternatives is how congestion is best dealt with. Not completely solved of course, that can only happen by collapse of the city economy like in Detroit, and no-one wants that solution. But traffic congestion can be made both manageable and, for many, no longer an issue, by providing them with attractive alternative options. And in turn this frees up the roads sufficiently for those who have to or prefer to drive. Especially when this is done in conjunction with direct price signals- road pricing; tolls or network or cordon charges.

Houston may be forever too far gone down this hopeless road but that doesn’t mean we have to follow it. Here is a description of the same problem in Sydney, with the solution:

Most people will take whichever transport option is fastest. They don’t care about the mode. If public transport is quicker they’ll catch a train or a bus, freeing up road space. If driving is quicker, they’ll jump in their car, adding to road congestion. In this way, public transport speeds determine road speeds. The upshot is that increasing public transport speeds is one of the best options available to governments and communities wanting to reduce road traffic congestion.

This is called the Nash Equilibrium [I would rather say better than faster; there are a number of variables including speed that inform our choices];

This relationship is one of the key mechanisms that make city systems tick. It is basic microeconomics, people shifting between two different options until there is no advantage in shifting and equilibrium is found. We can see this relationship in data sets that make comparisons between international cities. Cities with faster public transport speeds generally have faster road speeds.

Which brings us to the Waitemata Harbour. It currently has 13 general traffic lanes across two bridges, one walking and cycling lane on the upper harbour bridge, and some ferry services generally not competing with these crossings. The Harbour Bridge carries increasing numbers of buses from the hugely successful Northern Busway, the very success of which exactly proves the theory of the equilibrium described by Dr Ziebots above. In the morning peak the buses carry around 40% of the people without even a single dedicated lane on the bridge itself. And it is all the people using the busway that allow the traffic lanes to move at all. In fact NZTA argue that one of the main reasons for building a new crossing is the numbers and the size of the buses now using the current one.

The Upper Harbour Bridge is about become significantly busier because of the multiple billions being spent on the Waterview connection between SH20 and SH16, the widening of SH16, and the bigger interchange between SH81 and SH1 on the Shore. These huge motorway expansions will generate more traffic of course, but also will provide an alternative to driving across the lower Harbour Bridge.

What is missing anywhere between the North Shore and the city is a Rapid Transit alternative to these road lanes. Like Sydney always has had.

Sydney Harbour am peak

It is its [Sydney Harbour Bridge] multi-modality that makes it truly impressive, some 73% of the people entering Sydney on the Bridge from the Shore at this time are doing so on just one of the train lines and one bus lane; a fraction of the width of the whole structure. So not only does it shame our Harbour bridge aesthetically it completely kills it for efficiency too.

Auckland’s bridge was always only ever designed for road traffic, and should be left that way, the clear way forward is to add the missing Rapid Transit route as the next major additional crossing [after adding the SkyPath to the existing bridge].

In 1992 it  [Sydney Harbour Bridge] was supplemented by a pair of two lane road tunnels that up the cross harbour tally for this mode to match the number coming over by train [bridge plus tunnels = 12 traffic lanes], but that wasn’t done until the population of the city had hit 3.7 million. The high capacity systems on the bridge saved the people of Sydney and Australia from spending huge sums on additional crossings and delayed the date they were deemed necessary by many decades. But anyway, because the additional crossing is just road lanes it only adds around 10% extra capacity to the bridge. To think that the government here and NZTA are seriously proposing to spend multiple billions in building a third Harbour Crossing in Auckland with the population only at 1.5m, but not only that but they are planning to build more capacity for the least efficient mode; more traffic lanes.

The good people at NZTA of course know this, but we just seem stuck in a bad habit of road building in a similar way as Houston is, because the money for motorway building comes from central government some people believe this makes it free, in a similar way that the highways in the US are largely funded by the Federal government, unlike public transport, which is more locally funded [Known as ‘path dependency’ and is well covered in the academic literature: Imran, Pearce 2014]. This means the pressure to evaluate the effectiveness of motorways over the alternatives is much weaker. Here is a slide from an NZTA presentation proudly proclaiming how much more traffic this massive project will generate:

AWHC - Induced Demand

Of course this growth can be met by a parallel Rapid Transit system instead. The success of the Busway here and the enormous uptake of the recently improved Rail Network show that Aucklanders are the same as city dwellers everywhere and will use good Transit systems when they get the chance. And two much smaller and therefore cheaper train tunnels have much greater capacity than the proposed six traffic tunnels. Twice as much in fact: the equivalent of twelve lanes and without adding a single car to city streets. Furthermore converting the Busway to a rail system, which is entirely possible, and depending on the system may even be quick and easy, means that buses can be completely removed from bridge freeing up more capacity there for general traffic; cars and trucks:

  • Removing buses from the existing bridge would free up some capacity. 200 buses per peak hour ~= 1,000 cars ~= 60% capacity of a traffic lane. So a dedicated PT crossing provides car users with an extra lane (once you account for reverse direction). Not huge, but not negligible either.
  • Mode shift: by providing a fast and more direct alternative route you will get mode shift, providing more space to the cars that remain. So you have more vehicle capacity and less demand = a real congestion benefit.

So compared to a new road tunnel where both crossings would need to be tolled, and simply generate more competing traffic for drivers through the whole city, the dedicated PT option would seem to be better even for motorists. The better, faster, and more attractive the Rapid Transit route the freer the driving route will remain; with more people choosing the car-free option: The higher the Transit utility; the higher the driving utility.

Of course while a rail crossing will be considerably cheaper to build than a road crossing it still needs a network either side of the harbour to make it useful. Are there good options for this? In fact there are a number of very good options, all with varying advantages and disadvantages that need serious investigation. And it is important to remember by the time this project is being built the public transit networks in Auckland will be considerably more mature. The City Rail Link will have transformed the newly electrified rail network to a central role in the city, it will quickly have doubled from 2015’s 15 million annual trips to 30 million and more. The New Bus Network will be functioning and with the new integrated zonal fare system meaning people will be used to transferring across routes and modes to speed through the city. The increase in bus numbers and population will make driving in the city less functional. There will certainly many tens of thousands more people in the city without their car, many with business or other reasons to travel across to the Shore.  And importantly there will almost certainly be a new Light Rail system running from the central isthmus down Queen St and terminating downtown.

The quickest and cheapest to build will probably be to take the city Light Rail system through Wynyard Quarter and across the harbour, as outlined by Matt here. The busway can be most easily converted for this technology, as it is already designed for it. Furthermore being the only rail system that can run on streets it can also most easily include branches to Takapuna and even Milford to the east, and from Onewa up to Glenfield. This also has the advantage of balancing the existing city-side routes, unlocking a downtown terminus, not unlike the CRL does for the rail network.

What a North Shore light metro network map might look like.

What a North Shore light metro network map might look like.

Higher capacity and with the great advantage of cheaper to run driverless systems are is Light Metro like the massively successful SkyTrain in Vancouver. As described for Auckland here. However like extending our current rail system to the harbour it would require a more expensive city-side tunnel to Aotea Station for connection to city network. We know work has been done to prepare Aotea station for this possibility. Matt has also explored other variations here.

Light Metro North & Northwest

Perhaps the best answer for both the near term and the long term is to build tunnels that can take our new Light Rail vehicles for the years ahead but are also capable of being converted to the higher capacity Light Metro when the demand builds so much to justify the further investment of the city tunnel between Wynyard and Aotea Station. Bearing in mind the LR vehicles AT are planning for are high capacity [450pax ] and they can run in the cross harbour tunnels and the busway at very high frequencies. And that Light Metro systems can use track geometries much closer to LR than can conventional rail systems.

So in summary, the bane of the motorist and the commercial driver, traffic congestion, is best dealt with on the demand-side as well as the supply-side. We have spent 60 years just supplying more tarmac, and now it is time to get on with addressing the demand side: Building quality alternatives and providing clear incentives to fine-tune peoples choices.

And, just like road building, investing in quality Rapid Transit will grow the demand for more of it. It will also shift land use, incentivising agglomeration economies and greater intensification around transport nodes, as well as individual habits to suit this option more. What we feed, with infrastructure investment, grows. And vitally, inducing this sort of movement instead of driving is entirely consistent with other the demands of this century; especially our country’s new commitments to reduce our carbon emissions, and the use of our own abundant and renewably generated energy.

This project is both so expensive and potentially so valuable or so damaging that it needs a fully informed public debate about the possibilities. Gone are the days that NZTA can just keep building what its used to without real analysis of all alternatives, or that a politically expedient option sails by without serious evaluation. Because it can be transformed into a truly great asset for the city and the nation on this important route from the eye-wateringly expensive and clearly dubious idea from last century that it is now.

What’s clearly missing from this picture, especially once Light Rail fills ‘The Void’, and some form of rail goes to the airport?:

CRL Outline-Train-Plan-31July2014

Body without a head: Official post CRL rail running pattern

Guest Post: Is Christchurch a provincial market town, or a diversified commercial city?

This is a guest post by Christchurch resident and urbanist Brendon Harre. An earlier iteration of this post originally appeared at Making Christchurch

Is Christchurch a provincial market town, or a diversified commercial city?

Sheep sale, Addington (ca 1920s)

Sheep sale, Addington, Christchurch, [ca 1920s]

Recently on the transportblog website Stu Donovan someone who I respect for his expert analysis and articles, wrote the following, as a comment about Auckland’s population growth.

…. I only wish central government policy-makers grasped that distinction. That while the rest of the country depends on good roads, Auckland city will increasingly depend on public transport and walking/cycling. That while the rest of the country depends on an efficient agricultural sector, Auckland depends on a diverse and innovative service sector….

Stu of course is allowed his opinion and I believe it comes from a good place. He loves the urban culture of Auckland and can see ways to improve it for all our benefit (a stronger Auckland strengthens NZ). The problem I have is the implication that the rest of the country doesn’t have or need an urban culture –that all they need from the government is some roads and an efficient agriculture sector.

For instance, I think Christchurch needs support to restore and grow its urban economy and this too would help New Zealand. In the 2013 census, Greater Christchurch’s population was 436,000. After a post-earthquake dip in 2011 and 2012, population growth has been strong at about 8,000 new residents per year and by the end of 2015 it is likely the metropolitan area has around 450,000 people. If growth drops down to a more typical increase of 4,000 to 6,000 per year then the city can expect to hit the ½ million mark by around 2025. This is a long way behind Auckland, which reached the ½ million mark in the 1960s, but by international standards it is significant.

Canterbury pop growth

If Christchurch was a city in the Nordic countries of Sweden, Finland, Norway and Denmark, then it would be the 6th largest city. Gothenburg in Sweden is the 5th largest city and has a population of 550,000. Tampere in Finland is the 6th largest city with a population of 317,000.

These cities are proud of who they are and would not accept being labelled provincial market towns. Gothenburg gives the world Volvo. While Nokia, which birthed the phone company of that name is a satellite town of Tampere. Mid-sized commercial cities, which is what Christchurch is, have more to offer than a nice leg of lamb or a surplus of milk powder. Of course you don’t even need to be a city to offer the world something more than raw commodities. Lego’s home town and still where Lego’s head office is located -is the small town of Billund in Denmark–population 6,000.

Denmark should be a fascinating place for New Zealand, because they have done something we in New Zealand struggle with. Before New Zealand was supplying the UK with food, Denmark had reconfigured its economy so that the UK would take all its bacon and butter. By 1900, 60% of Denmark’s exports were food items to the UK. Yet somehow in the intervening years Denmark has diversified their economy in a way that New Zealand has not. Perhaps, because Denmark embraced a diversity of new concepts, such as design, this has allowed them to progress their economy?

Made in Denmark

Further, Denmark has done it in a way that has given their people higher incomes and arguably at a lower environmental impact. I have asked various experts how Denmark has achieved this and nobody really has an answer. Most recently, I asked Michael Riddell former Reserve Bank economist and now blogger at There seems to be no clear consensus on what New Zealand could be doing differently, although we both gave our opinions.

In Christchurch’s case it is slowly getting back its mojo from the devastating series of earthquakes five years ago. For instance, Canterbury has been the hub of outdoor design and manufacture since Fairydown, a Dunedin based sleeping bag firm created by the Ellis family in the 1920s was sold off to international interests in the 1980s. The next generation of the family set up Earth, Sea and Sky based in Christchurch, to be with other similar outdoor orientated companies. Earth, Sea and Sky have a philosophy of using local talent to create and make specialised garments here in our own back yard.  Macpac a garage start-up done good, is another firm in the outdoor design and manufacture cluster. A recent entry into the outdoor equipment stable is a firm –Uprising Climbing Holds -that makes rock climbing holds and exports them to the world. After the central city YMCA climbing gym was knocked out of action the company built a new gym near the trendy Tannery shopping complex in Woolston. The gym as well as being a business in its own right has the important side benefit of providing research and development information on new holds for the company.

Uprising climbing holds

Uprising Boulder Gym owner Sefton Priestley in the climbing room where customers test new climbing holds.

On another track, Tait Communications is a genuine Christchurch based export success story –it makes radios for emergency services and for the likes of London’s buses. It has had a tough year; revenues have retreated from earlier highs of over $200m to about $160m-$170m. Despite this setback they remain optimistic, recently targeting Rio Olympic security concerns and achieving big increases in sales through that marketing route.


The $35 million Tait campus development is set on 11ha of land alongside Tait’s existing buildings and features the construction of an über energy efficient new headquarters for up to 350 of its Christchurch-based employees

These examples demonstrate the diversified strength of Christchurch’s commercial city that is independent of Canterbury’s farming hinterland.

In the normal course of events I would have shrugged off Stu’s comments. He expressed an opinion, I was able reply with an opinion, which got some favourable comments –so no harm done on transportblog, just some healthy debate.

My opinion which I wrote at the time being;

…. if NZ developed a post farming economy based around a diversified urban economy of agglomeration, affordable housing, good transport provision, attractive amenities for skilled workers and business etc, that is often discussed here on tranportblog, then Christchurch would be the biggest winner.

But I have noticed the ‘urban Auckland versus the rural rest’ opinion is quite widespread and being touted by some pretty influential individuals. I wonder if it is the spreading of these sort of cultural/political ideas that is holding us back?

The newly formed Committee for Canterbury chair Gill Cox recently had this to say.

Boiling it down, it starts with the economic truth that the fates of Christchurch city and its rural hinterland are absolutely intertwined. “Christchurch is a market town,” says Cox simply. “Christchurch would struggle even to have a reason for being if Canterbury were not there. The economic driver is not the city but the region.” This is why it ended up as the Committee for Canterbury rather than the Committee for Christchurch, he says. The divergence from the “committee for” movement’s city-based template was quite deliberate. Cox says before the earthquakes, Christchurch had become somewhat politically disconnected from this fact. It had dreams about being a world-class small city riding the high tech “knowledge-wave” — a mini-Copenhagen at the bottom of the world.

Of course, says Cox, Christchurch should still want to do its best on this score. But really, as a long-term strategy, it just pits the city against every other city….

Christchurch has to concentrate on its true natural advantages, says Cox. And when it comes to NZIER’s analysis, these are simply the two things that Canterbury can be a premium-quality food basket for the world, and that Christchurch can get a free ride in being the tourist and freight gateway for the South Island.

Again, news that is no surprise for those who are in business in Canterbury. But Cox says our politicians and the general public may not have the same tight focus on how the region’s bread is buttered….

Note how in Gill Cox’s opinion Christchurch is a market town not a city, that economic opportunities lie in rural not urban areas (with the exception of the city being a freight and tourist gateway) and that wanting to be a diversified economy like Denmark’s is ‘disconnected’ and ‘dreaming’.

I don’t think Gill Cox speaks for all businesses –I think many city-based businesses would be surprised about his bias. Gill Cox’s comment that the general public cannot focus on how the region’s ‘bread is buttered’, is in my opinion code for saying that the region’s economy should be directed by ‘experts’ such as himself and that democracy and debate is unnecessary. That there is no need for Canterbury to have a public conversation on how regional public resources should be allocated.

Gill Cox CfC Case

Gill Cox delivers Committee for Canterbury’s Case for Canterbury at November launch party.

If Gill Cox was just a chair of an obscure think tank then his opinion wouldn’t matter much, but he is one of six NZTA board members (the board can have up to eight members). The board is appointed by the Minister of Transport and is responsible for making independent decisions on allocating and investing funds from the National Land Transport Fund.

Transport as everyone knows on transportblog is one of the key determinants of how a city grows. NZTA is the key funder for new transport projects. Local authorities spend a lot of money on transport, but it is mainly on maintenance –they lack the financial resources to go it alone with new projects –the existing framework of local government taxation means local authorities have to co-operate with NZTA funding with regard to new projects. Unfortunately for the commercial city of Christchurch it has a funder who is completely dismissive of its needs. For example, with Gill Cox’s attitude what are the chances that Greater Christchurch will get commuter rail or any other rapid transport solution to solve its congestion problems, as has been proposed by Christchurch City Council?

Christchurch congestion

Congested Christchurch streets

The NZTA has a history of being biased against Canterbury in the 2002 to 2012 period, when the NZTA significantly underspent in the region compared to elsewhere, the cynic in me says that will continue, at least for city residents and businesses, if not for the whole region. Recent per capita spending doesn’t look so bad for Canterbury. But considering the infrastructure deficit from a decade of under spending, the amount of earthquake damaged roads, the dispersal of residents post-quakes and the strong population growth (second fastest growing region in NZ). Then Canterbury is due for some high NZTA spending — will Gill Cox and his other Board members agree to that and if they do, which new transport projects will get funding?

I wonder if Gill Cox has read the research about how transport can improve a city’s productivity and income. Alain Bertaud in his paper –‘Cities as Labour Markets’ -compiled the following studies.

In Korean cities, a 10% increase in the number of jobs accessible per worker corresponds to a 2.4% increase in workers’ productivity.

Additionally, for 25 French cities, a 10% increase in average commuting speed, all other things remaining constant, increases the size of the labor market by 15 to 18%.

In the US, Melo et al. show that the productivity effect of accessibility, measured by an increase in wages, is correlated to the number of jobs per worker accessible within a 60-minute commuting range. The maximum impact on wages is obtained when the number of jobs accessible within 20-minutes increases; within this travel time, a doubling in the number of jobs results in an increase in real wages of 6.5%. Beyond 20 minutes of travel time, worker productivity still increases, but its rate decays and practically disappears beyond 60 minutes.

Both papers demonstrate that workers’ mobility –their ability to reach a large number of potential jobs in as short a travel time as possible, is a key factor in increasing the productivity of large cities and the welfare of their workers. Large agglomerations of workers do not insure a high productivity in the absence of worker mobility. The time spent commuting should, therefore, be a key indicator in assessing the way large cities are managed. (p. 24, 25).

Given the way people were re housed after the Canterbury earthquakes -being population fell in central/inner city areas and increased in distant peripheral satellite towns then it is likely that congestion and commuting times have increased. Also the number of jobs accessible by workers in 20 minutes has probably declined. This means Greater Christchurch’s economic potential has been setback and it will not be remedied until Canterbury receives a compensatory improvement in transport infrastructure.

On the issue of whether it is better to be a market town or a diversified commercial city, research from around the world shows that market towns have the lowest income when it comes to the different types of cities.

City Types

Note the small share of value added that agriculture (in black) contributes even in market towns. Cities are competitive diversified economies and to function at their best they need to be supported as such.  Christchurch as a market town is the past. Christchurch as a modern, diverse, competitive commercial city is the future.

East-West consenting to happen

Normally organisations don’t make announcements late on the last Friday afternoon before Christmas unless it’s about something they don’t  want much coverage of by the media. Last Friday the NZTA made an announcement that would fit in that category – they’re now going to try and obtain consent for the East-West Link. This is the $1 billion+ project that will create a new barrier between to the water right at a time when we’ve just spent nearly $30 million to fix the foreshore on the other side on Onehunga. It also comes right after Panuku Development Auckland announced that Onehunga would be one of their top priorities including the redevelopment of the Onehunga Wharf.

East-West Preferred Option

The NZ Transport Agency and Auckland Transport have taken another step towards construction of the East West Connections project, confirming that the preferred option will go ahead to the next stage.

The project, which is one of the top three transport priorities for Auckland, will now start gathering the necessary planning approvals and consents to protect the route between Onehunga and Mt Wellington.

This follows a wide range of feedback received in July on the preferred approach. The project will improve connections into and out of Onehunga-Penrose and also speed up bus travel times between Mangere, Otahuhu and Sylvia Park.

“A team of consultants has now been engaged to start the planning and consent phase of this key project,” says the NZ Transport Agency’s Highway Manager Brett Gliddon.

“People will also have more opportunities to provide further input and feedback as the design is developed.”

The Transport Agency plans to apply to the Environmental Protection Authority for the Notice of Requirement to obtain the necessary land and approvals for the project later in 2016.

At the same time, the Transport Agency and Auckland Transport are planning to start work in early 2016 on a package of early improvements. These are aimed at providing some early benefits to freight and public transport users on both the motorway and local road network.

Auckland Transport spokesperson Andrew Scoggins says this will include upgrades needed for the introduction of the new south Auckland public transport network. This incorporates an upgraded Mangere town centre bus station and new bus stops in Otahuhu town centre.

“Auckland Transport and the Transport Agency will also begin improving journeys for drivers moving around busy Onehunga local roads, starting with four laning a section of Neilson Street.”

The Southwestern Motorway will also be widened to four lanes in each direction between Queenstown Road and Neilson Street and bus shoulder lanes will be added all the way to Kirkbride Road towards the airport.

As Cam pointed out well in this post recently, Option F which is what most closely resembles the final option they’ve chosen appears to fail when an incremental benefit-cost ratio is calculated.

As I’ve said before, this project is like trying to crack a nut with a sledgehammer. Absolutely some parts of the existing road need to have some money spent on it but over a billion?


2015 – Auckland’s Watershed Year

The more I look at the events and data of 2015 the clearer it becomes that this has been a profoundly significant year for Auckland. It is my contention that this year the city reached a critical turning point in its multi-year evolution back to true city pattern. I have discussed this change many times before on this forum, most notably here, as it is, I believe, an observable process that has been building for years. Generally it has been gradual enough, like the growth of a familiar tree, as to easily pass unobserved, but now I think it has passed a into a new phase of higher visibility. The group who see it most clearly are people returning from a few years overseas. Many ex-pats express surprise and wonderment at the myriad of changes in quantity and quality they find here on returning.


Changing City: New apartments with views over the city and harbour, a Victorian school and park, 20thC motorways, and the new LigthPath.

Below is a summary of evidence for 2015 being the year Auckland returned as a city, in fact the year it crossed the Rubicon onto an unstoppable properly re-urbanising path. Later I will add another post on how 2016 and beyond is certain to see the city double-down on these trends, and why this is very good news. This transformation is observable in all five keys areas:

  • Demographics
  • Transport
  • Development
  • Economy
  • Politics

DEMOGRAPHICS. New Zealanders returning in big numbers are one of the key metrics of 2015. Along with new migrants and natural growth, the other change driving Auckland’s demographic strength is fewer people leaving, all of which, of course, are a vote of confidence in the city as a place to want to live and to likely fulfil people’s hopes for a better future. Population growth for the year was at 2.9%, the strongest rate since 2003, the strongest in the nation, and biggest raw number on record. See here for Matt’s [Population Growth in 2015] and Peter’s [Why is Auckland Growing?] posts on these issues.

Auckland LB Population Change - 2015 2And importantly for my thesis many more people are moving into the centre, particularly into new apartments. This is a evidence that the The Great Inversion is happening in Auckland as it is all over the developed world; the return of vitality to centre cities all over. Auckland’s urban form is reverting to a centred pattern; with proximity to a dense centre as a key determinant of value.

City Centre Population - 1996-2015 2

TRANSPORT. The huge and sustained boom in rail ridership way in advance of population growth is the headline transport news of 2015, and is the result of the upgrade in quality, frequency, and reliability of the service brought by the new electric trains. Sustained growth of over 20% is very strong; this year every four months an additional million trips have been added to the running annual total; 13 million in March, 14 million in July, 15 million in November. I am not overstating it to say that these numbers change a great deal: They change the argument for further investment in rail systems in Auckland, and significantly they change growth and development patterns across the city:

2015-11 - Rail Patronage


Elsewhere on our Public Transport systems the news is great too; The New Bus Network is just beginning, and is already showing huge growth in the few areas it is in effect. This year we have also seen new ferry services, including a new private Waiheke service that means there is much more like a real turn-up-and-go service there [started late 2014]. Ferry modeshare is holding its own at 7% which is a strong showing given the explosion in rail and bus numbers.

Importantly AT is now routinely rolling out long overdue bus lanes across the city. And now that they are doing this confidently and more consistently, surprise and anguish about this more efficient re-purposing of roadspace by car drivers has fallen away to nothing- there surely is a lesson there.

So total PT ridership cleared 80 million annual trips this year, for an overall growth of 8.1%, a rate running at nearly 3x population growth, evidence of a strong shift to public transport at the margin. Growth that is certain to continue despite capacity issues becoming pressing at peak times on both buses and trains.

2015-10 - Total Patronage

HOP card use also became strongly embedded this year [except on the ferries] which is another sign of a maturing system.

2015-09 - HOP Use

More population and a growing economy of course means more vehicles and more driving on our roads, [see: What’s Happening to VKT?] but because of the powerful trend to Transit outlined above the per capita number is flat to falling. This is a historic shift from last century when the two tended to move strongly in lockstep.

2014 VKT - AKL VKT + Pop

Another discontinuity from last century is that GDP and employment growth have also separated from driving VKT, as shown in the following chart from Matt’s post linked to above. Another sign that the economy too is shifting on the back of public transport, and not driving as much as it was last century:

2014 VKT - AKL Econ 2

So whereas investment in the rail network has been answered by an extraordinary boom in uptake the multi-year many billion dollar sustained investment in driving amenity has not led to massive uptake. It is hard to not conclude from this that 1. We are far from discovering the latent demand ceiling for quality Transit; only the degree of investment will limit it. And 2. Driving demand in Auckland is saturated; this mode is mature, well served and not the area to invest in for new efficiencies or growth.

2015 also saw the launch of the Urban Cycleways programme; a multiyear government led investment in infrastructure for walking and cycling. This, like the Transit boom is another shape changing departure from the past. Although the active modes are not well counted [what a culture counts shows what it values] it is clear that the shift back to the centre is also accompanied by a growth in active mode transport. This is one of the great powers of Proximity; the best trip is the one that isn’t need because the potential traveller is already there, or near enough to use their own steam:


DEVELOPMENT. All over the city investment is going into building projects of various kinds, the retirement sector is particularly strong, as is terrace house and apartment buildings, all three at levels not seen for a decade and together support the argument that Auckland is not just growing but also changing shape into a more more city-like pattern, as John Polkinghorn has kept us up to speed on all year on the Development Tracker:

Auckland Dwelling Consents to Sep 2015

Significantly there is also renewed investment into commercial projects especially in the City Centre, led by Precinct Property’s 600 million plus Downtown rebuild and tower, and Sky City’s massive Convention Centre and Hotel project between Hobson and Nelson. Additionally Wynyard Quarter is also moving to a new level soon with a mix of Hotel, Residential, and Commercial buildings. Somewhere in the region of 10 billion dollars of projects are underway or close to be in the City Centre. And as Peter clearly illustrated recently this is in no small part due to improved regulatory conditions [The High Cost of Free Parking].

ECONOMY. Cities exist simply because of the advantages for humans to be in close proximity to each other for transactions of all kinds; financial, cultural, social, sexual. And Auckland is beginning to show real possibility of opening up an agglomeration advantage over the rest of the country now that it is really intensifying. The latest data on Auckland’s performance shows a fairly consistent improvement over the last five years

GDP Growth Dec 2015 AKL

POLITICS. Two major political programmes begun this year will have profound impacts on Auckland for decades to come. The first is the Auckland Transport Alignment Process. Something we haven’t discussed on the blog because we are involved in it and are awaiting the first public release of information which will be soon. Then we will certainly be discussing the details of this ongoing work. But the importance of this process is already clear; it is a reflection of a new found acceptance but the government that Auckland’s economic performance matters hugely to the nation and that transport infrastructure investment is, in turn, critical to that performance. We are of course striving to make the case for a change in the balance of that investment in Auckland away from a near total commitment to urban highways now that motorway network approaches completion [post Waterview and Western Ring Route] and that the evidence of success from recent Transit improvements, particularly to the Rapid Transit Network, is so compelling. There are hurdles here in the momentum and habits of our institutions and politics but also huge opportunities to really accelerate our cities’ performance across a range of metrics through changing how they are treated.

The other political shift is another we are yet to cover in depth but soon will, and that’s the agreement in Paris on Climate Change. This does indeed change a great deal. The city and the nation will have to ask the question of all decisions around urban form and transport how they fit with the new commitment to reduce our carbon intensity. This will clearly lead to a further push for higher density and greater emphasis on Public and Active Transport, as these are current technology and long term fixes to this global challenge. Unleashing further the urban power of proximity and agglomeration economies. So much of the conversation around New Zealand’s carbon intensity is around the agricultural issue and this tends to ignore the opportunities our cities offer, particularly Auckland, and particularly the Auckland transport systems, to this problem.

Cities are emerging as the key organising level that are most able to react to this problem as discussed here in The Urban Planner’s Guide to a Pst-COP21 World:

In many ways, Melbourne’s experience represents a coming-of-age of the urban sustainability movement. The private sector is listening to cities and responding. Now it’s up to cities and national governments to continue the conversations that began at COP21 and continue the evolution.

“The commentary for a long time has been ‘nations talk and cities act.’ We’ve been part of that dialogue too. That’s changing now,” said Seth Schultz [director of research at C40 Cities]. “National governments are coming to organizations like ours and saying ‘help us. We get it.’ I want to change the trajectory of the conversation. Cities are a vehicle and everyone should be getting in that vehicle and joining in for the ride.”

So in summary 2015 has seen:

  • Completion of Electrification of the Rail Network and the New Trains
  • The start of the New Network
  • New Interchange Stations
  • New Buslanes
  • Improvements to Ferry services
  • Start of the Urban Cycleways Programme
  • CRL start
  • ATAP
  • Paris COP 21

I will follow this post with another looking ahead to what is going to be a huge 2016/17. Here’s a short list to start with:

  • Fare Integration
  • Further Interchange Stations
  • Western Line frequency upgrade
  • New Network rollouts
  • Queen St Buslanes [so overdue]
  • More Cycleways
  • SkyPath underway
  • CRL seriously underway
  • Huge city developments begin
  • ATAP concludes
  • Council elections
  • Progress on Light Rail [it could be closer that many expect]

For all the frustrations and compromises that we’ve highlighted over the year I think it’s very clear that there are many very hard working and dedicated people in AC, AT, NZTA, and MoT and their private sector partners and it is their collective efforts in a very fast moving and changing field go a long to making Auckland the dynamic and exciting city it is fast becoming. I am keen to acknowledge their efforts. Onward.

I also want to personally thank my colleagues here at the blog, as it has been another big year for us, Matt, Peter, Stu, Kent and John, from whom I continue to learn so much, it doesn’t look like we are going to be able to give this up anytime soon…

Also I would like to shout out to colleagues over at Bike Auckland, our sister site, they’ve had a fantastic year, so cheers to Barb, Jolisa, Max, Paul, Kirsten, Ben, Bruce and the rest.

And of course to y’all, the reader, you are what really makes this thing work, so if what we do here makes any kind of difference, ultimately that’s because of you.

Kia ora tatou…


Transport Spending 2005-15

For the year to the end of June the government and councils across New Zealand collectively spent $4 billion on transport – the first time spending has crossed that mark and about double what we spent a year just a decade earlier.

Helpfully the NZTA have just updated their data showing just were that spending and so with this post I thought I’d highlight some of that.

First up here’s how spending has changed over time at a national level. The NZTA figures includes their share of funding for local roads and other aspects such as public transport. In total just under 50% of money goes on local projects (which includes PT) while just over 50% goes towards state highways.

Spending - NZ - 2015

And here’s what this looks like for the Auckland region where over the last year $1.4 billion has been spent. In Auckland the share going to State Highways is slightly higher them getting 54% of the funding

Spending - AKL - 2015

By now some of you have probably already worked out that Auckland received about 35% of the total funding, which is slightly more than its share of the nation’s population – although given the level of growth that’s occurring not necessarily unreasonable. So how did the other regions fare?

Comparing the data to population information a couple of regions really stand out – getting considerably more investment than other regions on a per capita basis. Those are the three W’s Waikato, Wellington and the West Coast. The chart below shows how much we spent per person and includes the money council’s spent. One I expected to be higher is Canterbury given the amount of work going on however this seems to be more in line with the historically trend of the region having a lower per capita spend on transport

Spending - NZ - 2015 - Per Capita 3

The next charts break down the spending by funding activity. I’ve excluded the small ones such as transport planning as it’s difficult to see them on the same scale as road spending. In the NZ chart you can see that overall spending on new and improved roads was reached $1.8 billion last year and was the largest single activity. At the other end of the scale you can see the impact of increases in the cycling budgets starting to come through and become more visible. I’d expect this to continue with the government’s cycleway spending coming through.

Spending - NZ - 2015 - by activity

And in Auckland the spending on new and improved roads is even more pronounced with much of it being the money being spent on the Western Ring Route

Spending - AKL - 2015 - by activity

The NZTA have quite a bit of data available and there are lots of ways of looking at this. Let us know in the comments if there’s some other way you’d like to see it cut or if you’ve done your own analysis.

Waterview December Update

The Waterview Connection project is currently New Zealand’s biggest transport project and the team working on it regularly put out pictures and videos of  the work they’re doing. Here are some of the latest updates.

Over the weekend the arch of the Hendon St walking and cycling bridge was installed.

Waterview Hendon Bridge- Dec 15

You can see the bridge under construction below. The approaches have been built for a while but the arch and the section that spans the motorway has had to wait till tunnelling finished so the conveyor belt could be removed.

Waterview Aerial - Nov 15 - 2

And here’s what the bridge will look like when finished.

Hendon Ave Bridge

Below is a look at the Waterview Interchange taken in November. You definitely couldn’t call it compact. The image also shows just how wide the causeway will be once finished. The completed layout will have four lanes citybound, 5 lanes westbound, bus shoulders each way and the cycleway

Waterview Aerial - Nov 15 - 1

Speaking of the cycleway the section along the causeway is now open and a considerable improvement to the conditions cyclists have endured in recent times. The remaining sections of the cycleway are due to be completed in the next few months.

While not part of the Waterview Project, also due to be completed soon is the Te Atatu interchange which will see the section of motorway from Te Atatu to Lincoln Rd finished early next year. As many of you will know there has been constant roadworks in this section since 2010 when the Lincoln Rd interchange upgrade started. The completion includes the new cycleway underpass of Te Atatu Rd (due before Christmas) and the extension of the NW cycleway to Lincoln Rd (The section from Henderson Creek to Lincoln Rd has been open for some time).

In the tunnel the work continues on digging out the cross passages

Waterview Cross Passage

And here’s one with pipes and valves for fire safety systems being installed.

Waterview Cross Passage valves

And of course now that the TBM has finished digging it is being disassembled and has been sold back to the manufacturer.

The 322 tonne cutter head after being lifted out of the ground.

Waterview TBM Cutter Head



The official video of the TBM breakthrough

The September and October Timelapses. The latter includes the TBM starting to be dismantled

The tunnels are due to open in early 2017

Ellerslie Motorway noise to reduce

Back in 2012 the NZTA cut back the back the platform at the Ellerslie train station by 2m to give themselves enough space to build a fourth northbound lane from Ellerslie Panmure Highway just north of the Main Highway bridge.  The NZTA are currently working on stage 2 which is the creation of that lane.

I haven’t been on the Ellerslie Platform for a few years but I was previously a daily user and remember just how noisy it can be with the motorway so close and exposed to the station – and the noise is only likely to get worse with an additional lane. As such I was curious as to whether the NZTA planned to do anything reduce the noise for passengers waiting for a train so I asked the NZTA. Their reply is below

The project will include anti-distraction screens with noise reduction properties. The product is Plexiglass Soundstop® and will be 1.0m high on top of the TL6 barrier. The TL6 barrier is 1.45m high from road surface. Giving a total height of 2.45m from road level. The length of the screens is 435m from CH250 to Main Highway Bridge (CH685). The Plexiglass Soundstop is 15mm thick (same as Nelson Street) but will be transparent Midnight Blue in color with vertical black bird deterrent markings.

Acoustic engineers have completed a model of before and after predictions, specifically looking at the noise changes at the platform. Their conclusion was “ The proposed 2.5m barrier between SH1 and Ellerslie Station is predicted to achieve a noticeable reduction in road traffic noise level for patrons waiting on the platform.”

Recently they also uploaded the video below giving a rough idea of what the blue noise wall will look like.

Once complete it will hopefully make waiting for a train at Ellerslie a bit more pleasant.