Better cities mean a wealthier New Zealand

Last week I took a look at whether government policy to support regional economies could divert growth away from Auckland. Based on the historical evidence, the answer seems to be no – people want to live in Auckland and start businesses here, and it’s senseless to try and stop that.

Today, I want to look at this issue from a different angle, and ask: If we somehow succeeded in stifling Auckland’s growth, would we be better off as a result? Would New Zealand be richer if it cancelled the City Rail Link, banned any new dwelling construction in Auckland, and told newcomers to bugger off to Timaru (or, more likely, Melbourne)?

Once again, we don’t have to speculate, as we can examine the results of previous “natural experiments”. Paul Krugman suggests that we could learn from recent population growth in the United States. (In between gaining academic renown for his work in new trade theory and public notoriety as a harsh critic of the second Bush administration, Krugman helped develop the new economic geography literature, which explains why cities form and grow.) He takes a look at the rapid growth of the “sunbelt” states, including Arizona and Texas, and finds that it has probably reduced economic growth in the US:

It turns out, however, that wages in the places within the United States attracting the most migrants are typically lower than in the places those migrants come from, suggesting that the places Americans are leaving actually have higher productivity and more job opportunities than the places they’re going. The average job in greater Houston pays 12 percent less than the average job in greater New York; the average job in greater Atlanta pays 22 percent less.

So why are people moving to these relatively low-wage areas? Because living there is cheaper, basically because of housing. According to the Bureau of Economic Analysis, rents (including the equivalent rent involved in buying a house) in metropolitan New York are about 60 percent higher than in Houston, 70 percent higher than in Atlanta.

In other words, what the facts really suggest is that Americans are being pushed out of the Northeast (and, more recently, California) by high housing costs rather than pulled out by superior economic performance in the Sunbelt.

But why are housing prices in New York or California so high? Population density and geography are part of the answer. For example, Los Angeles, which pioneered the kind of sprawl now epitomized by Atlanta, has run out of room and become a surprisingly dense metropolis. However, as Harvard’s Edward Glaeser and others have emphasized, high housing prices in slow-growing states also owe a lot to policies that sharply limit construction. Limits on building height in the cities, zoning that blocks denser development in the suburbs and other policies constrict housing on both coasts; meanwhile, looser regulation in the South has kept the supply of housing elastic and the cost of living low.

In short, restrictions on population growth in productive places – i.e. large, relatively dense cities – force people to move to less productive places, and earn less. A recent working paper by American economists Chang-Tai Hsieh and Enrico Moretti put a figure on the economic cost of these restrictions: housing supply restrictions in high-productivity cities like New York and San Francisco over the last three decades has lowered the US’s GDP by an estimated 10-14%. That’s absolutely huge.

This is agglomeration at work – or rather, “deglomeration”. The economic literature has identified a strong relationship between the scale and density of cities and the productivity of firms that locate within them. But rather than recognising and taking advantage of this phenomenon – for example, by allowing more office space to be built in San Francisco for the expanding tech industry and more apartments to be built in Silicon Valley for urbanophile tech workers – some American cities have chosen to reject it.

So could the same thing happen in New Zealand? In a word, yes. It’s definitely a risk and one that we should be careful to avoid.

First, the facts. Firms based in Auckland are more productive than firms elsewhere in New Zealand, after controlling for industry and firm characteristics. And firms in the Auckland city centre are even more productive. The table below, compiled from data in Dave Mare’s great 2008 paper on the topic (“Labour productivity in Auckland firms”), shows that there is a substantial “productivity premium” in Auckland:

Area Employment density (2006 jobs/sq km) Value added per worker (2006) Productivity relative to non-Auckland
New Zealand excl. Auckland 6.7 $45,550 -
Auckland urbanised area 518 $68,435 +51%
Auckland city centre 13,584 $106,873 +139%

I just want to say a brief word about the “productivity premium” of the city centre. A lot of people say that New Zealand’s an agricultural exporter, earning its way off the sheep’s back (or, more recently, the cow’s teats), and that downtown jobs are just an unproductive drain on farm revenues. However, service exports from urban businesses play an underappreciated role in NZ’s international trade picture. The two companies I’ve worked for in the Auckland city centre are both exporters of professional services. I’ve personally exported to Hong Kong, Australia, Fiji, and Papua New Guinea; my colleagues have also worked in Indonesia, Uganda, Canada, Saudi Arabia, the UK, and a whole host of other places. If we want to grow our exports in a smarter way, we need to encourage this sort of thing rather than deny that it’s happening.

As a result of the urban productivity premium, policies that stifle the growth of Auckland are likely to put a drag on New Zealand’s economy. In the US, a reluctance to let productive cities grow caused people to move to lower-wage cities like Phoenix, Houston, and Atlanta. Down here, the results are likely to be even worse, as New Zealanders are much more internationally mobile than Americans. If we put a lid on Auckland’s growth, some people will go to Hamilton or Tauranga instead, but many others will head to Australia or the UK.

Fortunately, we’ve got a much better option: Improve New Zealand’s cities rather than trying to smother them. Moreover, we’ve got some great opportunities to do just that. In Auckland, that means:

  • Making cost-effective investments in more transport choices, including better walking and cycling
  • Building the City Rail Link to unlock access to the city centre and allow firms to grow and benefit from the knowledge spillovers floating around
  • Preserving and improving our parks and public spaces – Waterfront Auckland is a truly world-class waterfront development agency and we should build on its success
  • And, as Krugman and Glaeser point out, it’s absolutely vital that we allow dwellings to be built in the places where people want to live – which increasingly means building more in places like Ponsonby and Mount Eden that are close to jobs and amenities.

We shouldn’t limit our vision to Auckland, either. While Auckland’s larger and faster-growing than Christchurch or Wellington, those cities also support agglomeration economies and interesting urban lifestyles. Investments in better cities will pay off there as well. Some of the same policies can also make small cities more liveable – although Hamilton will probably never need a CRL, look at the difference that NZTA’s Model Cycling Communities programme has made to Hastings and New Plymouth.

Why don’t we get on with it then?

More migrants! Sweet.

Several recent reports and articles have discussed trends in migration and its impacts on New Zealand.

In terms of trends, net migration is at a 10-year high. The recent surge in net migration trends is shown below.

Net migration

The simple reason advanced for the positive net migration trend is that our economy is doing relatively well compared to most of the countries with whom we compete for skilled labour. This is both 1) reducing the number of kiwis departing these shores and 2) attracting more people from elsewhere to come live/work here (some of whom will of course be NZers). Put simply, less out and more in = higher net gain. Trends in long term departures and arrivals are illustrated below.

Arrivals and departures

So what might be the impacts of higher net migration?

Usefully, the people at NZIER have been researching the impacts of migration on New Zealand’s economic performance. They find that for every 40,000 additional net migrants, our GDP per capita increases by approximately $400 p.a. Why? Well, there are apparently a number of microeconomic channels through which migration contributes to economic output, specifically:

  • They provide firms with new skills
  • They increase innovation and entrepreneurship
  • NZ businesses benefit from greater scale and competitiveness
  • They increase returns from public investment

The general message is fairly simple: Migrants increase the diversity and scale of our labour market and firms, while also increasing the returns on public investment (which typically have relatively fixed costs, such as infrastructure and institutions). It’s worth pointing out, however, that only the first two economic channels listed above are actually specifically linked to migration. The last two microeconomic channels are pure economies of scale, which would also result from a higher domestic fertility rate.

Which brings me nicely to another (potential) benefit from migration: Greater diversity in potential partners.

I know this sounds flakey, but I’ve just recently been struck by how many of my NZ friends (including several of my fellow bloggers) are partnered up with people of foreign origin. Which raises an interesting proposition: Is it possible that higher rates of net migration have an indirect impact on domestic fertility rates? I’ve been asking my mates but they’re a bit coy on the topic. But it seems reasonable to suggest that if migrants introduce diversity/specialisation into the labour market then perhaps they do the same for the “partner market”.

I guess the net effect depends not only on the quality of the match, but also migrants’ relative preferences for making babies compared to the existing NZ population (to which they are added). This is an area that may warrant further NZ-specific research (NB: The World Bank has analysed migration and fertility impacts in this paper. The key finding appears to be that migration reduces home country fertility and increases destination country fertility, as I would expect. However the World Bank appear to attribute this to simple differences in preferences, rather than better matching).

Are there negative impacts from migration?

The most obvious is the additional demand for housing that results during times of high migration, which could in turn lead to higher property price inflation and ultimately higher interest rates. This will not only curb domestic demand across the economy, but it will also tend to inflate the currency and undermine NZ’s export competitiveness. This issue is all the more relevant in the Christchurch context and, in my opinion, supports the Reserve Bank’s decision to implement loan-value requirements as a temporary curb on housing demand in these relatively exceptional circumstances.

Some people suggest that higher net migration might reduce social cohesion, although specific details on exactly what is meant by social cohesion are difficult to come by.

Data from StatisticsNZ (as discussed here on KiwiBlog) suggests people of Asian ethnicity in New Zealand have much lower rates of criminal offending than the general population, while the opposite is true of Pasfika ethnicity. However, this difference may be attributable to differences in the relative incomes of these two migrant groups.

I can’t help but wonder that if 1) more kiwis are staying here and/or returning from overseas (where approximately 1 million currently reside) and 2) kiwis who hook up with migrants are generally happier than they would be otherwise, then it seems possible that current trends will actually bring people/families together and thereby supports greater “cohesion”. So ultimately I think this supposed “negative” effect of migration is likely to be over-stated and that, on balance, migration has net positive impacts for NZ’s socio-economic performance.

So what should we expect from future trends in migration?

Well, if the results of this international survey are anything to go by then NZ can expect to see positive net migration numbers for some time. The survey ranked New Zealand ranked fifth overall for preferred destination and subsequently estimated that our population would increase to over 9 million in the event that everyone who wanted to migrate here was able to do so. Of course, the relative performance of NZ’s economy will be the main determinant of whether current rates of migration are sustained.

All I hope is that we start to get people like Emma Watson and/or Hayley Williams migrating here to vie for my affections. Sweet.

Does building roads harm the economy?

Most proposals to build new roads or widen existing ones seem to boil down to an ultimate belief that it will “help the economy”. Whether it’s by improving freight reliability or getting people to their jobs faster or helping business travel or whatever, there seems to be a fundamental belief among many that quite a strong relationship must exist between building more roads and improving the economy.

Clearly this is a contestable assumption, and some recent research in the USA details some pretty interesting trends – as reported on in Planetizen:

University of Minnesota professor David Levinson has written in the past that, because of the relative completeness of our national highway network and the cost of construction, the return on investment for additional mileage is approaching zero. One study estimates the return on investment for highway construction was just 14% between 1990 and 2000.

I recently decided to follow up on this line of research, so I dug through some Census data. What I found was shocking, though not altogether surprising. It seems that, besides wasting billions of taxpayer dollars, road-building may actually be holding back economic growth overall: from roughly 2000 to 2010, states that built the fewest urban road miles grew an average of 64 to 94 percent faster than their asphalt-enamored neighbors. Rather than increasing productivity through increased mobility and reduced congestion, as politicians and lobbyists so often promise, all this mindless road-building could be depressing statewide economic growth!

Let’s look at the details a bit more:

Looking at the numbers in aggregate, we see some interesting trends that seem to hold up just about any way you slice the pie:

  • States that increased their urban road mileage by less than 30% grew by an average of 14.40%, while those that increased mileage by greater than 30% grew by an average of just 8.77%.
  • If we set the cutoff at 20% mileage growth, states that built less grew by 17.97%, and states that built more grew by 9.24%.
  • At a 10% cutoff, states that built less grew by an impressive 20.70%, compared to just 10.66% for those that built more.

Statistically, analyzing the correlation between road-building and economic growth gives us an r-score (correlation coefficient) of -0.34, which implies that about 10% of a given state’s economic growth can be explained by how much urban road-building they did over this time period. Many things influence the overall health of any economy, obviously, so we shouldn’t expect the quantity of roads to wholly predict statewide economic growth by itself, but this does indicate a negative correlation between the two variables: more roads equals less growth. (As always, please remember that correlation does not imply causation.)

And for a graphed comparison:

roads_vs_growthThe post’s author, Shane Phillips, doesn’t think that these results are particularly surprising:

None of this should be particularly surprising. While politicians and advocates love to tout the job-creating value of new road and highway capacity, congestion reduction rarely lasts more than five years and widened roads ultimately only succeed in extending the boundaries of wasteful, unproductive sprawl. In the case of road widenings, it’s entirely possible that the disruption caused during the construction phase completely erases — or even exceeds — the fleeting benefits of reduced congestion.

Then there’s the opportunity cost: think of all the good that could have been done with the hundreds of billions of dollars spent on roadways over that period: more responsible transportation spending, education, renewable energy … take your pick.

I think it’s probably unlikely that building roads directly harms the economy, but there are logical reasons to think that it might cause indirect harm: particularly due to it not the best use of public funds and encouraging dispersed land-use patterns which undermine agglomeration. New Zealand’s heavy dependency on private vehicles also forces us to spend a lot of money each year importing cars and oil – basically cancelling out wealth that we create from exporting dairy to the the world.

The next version of the Government Policy Statement will be released some time later this year. If it’s anything like the current version it will stress the importance of transport’s role in improving the economy and then make a giant leap of faith in assuming that building more roads is the best way for transport to improve the economy. It’s time to fundamentally question that assumption.

Economic benefits of sustainable streets

Courtesy of Atlantic Cities, it’s explained how New York City’s Department of Transportation has done some pretty detailed analysis of the economic impacts of many of the changes they’ve been making to the layout of streets over the past few years.

Using tax data from the New York City Department of Finance, the DOT analyzed the impact of street re-design and transportation enhancements on retail businesses. Laid out in “The Economic Benefits of Sustainable Streets” [PDF], the data show encouraging results in seven test cases taken from three of the city’s boroughs, representing a wide range of neighborhood types.

The DOT compared sites where a variety of improvements had been implemented by the DOT to spots nearby and with the borough as a whole.

Overall, the numbers revealed broad economic benefits for the streets that had been changed. One example was Columbus Avenue, a busy shopping boulevard on the city’s affluent Upper West Side. There, the DOT had built a protected bike lane and pedestrian safety islands while narrowing travel lanes for motor vehicles. According to the tax data, revenue was up 20 percent over the baseline in the second year after bike lanes were implemented in the area.

In the comparison area immediately to the south without bike lanes, revenue was up 9 percent. The results are particularly interesting because a handful of vocal shopkeepers in the affected area had reported sales were down, leading to media reports that the lanes were bad for business.

This wasn’t just an isolated case either:

Another test case was the Hub, a congested and chaotic intersection in a working-class neighborhood of the South Bronx, where several subway and bus lines come together. DOT’s main improvements here were changing traffic patterns and improving transit connections, along with better pedestrian signals, crosswalks and shade trees.

Retail sales were up 50 percent by the end of the study period, compared with 18 percent in the borough as a whole, “all while area injuries were reduced and vehicle travel times and volumes were maintained.”

And even where parking was removed to improve bus reliability and travel times, there was also an improvement of economic activity:

On Fordham Road in the Bronx, where the implementation of a “Select Bus Service” express route and dedicated bus lane raised concerns among local merchants about lost parking spaces, sales increased 71 percent over the baseline, far better than the numbers for all but one of the comparison areas.

The DOT report acknowledges that it’s difficult to tease out all the different factors that contribute to a street’s economic health. In at least one of the test areas, a beautified Vanderbilt Avenue, overall gentrification – with all of its collateral damage to less affluent residents and business owners — was doubtless a contributor to a steep rise in sales numbers. But the NYC DOT’s data-driven approach is as valuable when it comes to money as it is when it comes to safety.

Business owners in a tough economy are often wary of any kind of change, especially when it reduces parking or changes their customers’ travel patterns in any way. Numbers like these provide yet another powerful rational argument for street design that puts people above cars.

This last point is key (and perhaps some business owners are starting to realise the value of high quality pedestrian environments). Changes to street layout that puts people above cars provides a valuable economic return – over and above what is often expected by business owners and the organisations that often represent them.

We’ve seen the same change happen in Auckland, with the introduction of a shared space in Fort Street leading to massive increases in sales and economic performance of the area. Conversely, High Street seems to be in terminal decline because retailers there have hung onto their pitiful on-street parking and the terribly narrow footpaths it creates, fighting attempts at creating a shared space.

How Cities Foster Innovation

We talk quite a bit on this blog about the importance and value of agglomeration, which is the additional level of productivity which comes from locating activities close to each other. Agglomeration is why Auckland growing will be good for all New Zealanders, and at a smaller scale why central parts of Auckland growing will be good for all of Auckland. While agglomeration economies are well studied in terms of observing that they most definitely do actually exist, it has been a little less certain exactly why they exist.

A recent article in The Atlantic Cities reports on research done by MIT (Boston version, not Manukau version) on this question – with some perhaps unsurprising but at the same time interesting results:

There have been plenty of theories. Adam Smith famously figured that people become more productive when we’re able to specialize, each of us honing a separate area of expertise. And when lots of us elbow into cities, we’re able to specialize in ways that we can’t when a rural farmer must also double as his own butcher, accountant and milkmaid. Other economists have suggested that cities become great agglomerators of industry when factories cluster together around economies of scale and communal access to transportation.

“We think there’s an underlying completely different way of thinking here, which is very different from the economist’s way of thinking,” says Pan, a doctoral candidate in computational social science in the MIT Media Laboratory’s Human Dynamics Lab. Previous work by researchers at the Santa Fe Institute has proven the math behind the power of cities: As they grow in population, all kinds of positive outcomes like patents and GDP and innovation (and negative ones like STDs and crime) grow at an exponential factor of 1.1 to 1.3.

This means that all the benefits (and downsides) that come from cities don’t just grow linearly; they grow super-linearly, and at roughly the exact same scale, with a growth rate that looks on a graph something like this blue line (a linear relationship is shown in red):super-linear
As for why this happens, though, Pan pushes aside theories about the location of manufacturing or the specialty of trade. “It’s more fundamental than that,” he says. “Cities are about people. It’s just that simple.”

We have discussed the work of the Santa Fe Institute in before in this post with a video presentation by theoretical physicist Dr Geoffrey West.

The full paper in which the study is published highlights that fundamentally it’s the density that we’re able to form social ties which generates the super-linear increase in outcomes. As noted, “the larger your city, in other words, the more people (using this same super-linear scale) you’re likely to come into contact with.”

However, unlocking the potential of cities is dependent upon ensuring that sufficient transport infrastructure is available for the city to effectively function as a large connected entity, rather than just a series of smaller disconnected placed which just happen to be next to each other. This is detailed further below:

“What really happens when you move to a big city is you get to know a lot of different people, although they are not necessarily your ‘friends,'” Pan says. “These are the people who bring different ideas, bring different opportunities, and meetings with other great people that may help you.”

Maybe this doesn’t sound like a novel discovery – that the inherent power of cities lies in our individual connections to each other. Other researchers have nipped at a similar idea, calculating, for example, the “social interaction potential” of place. But until recently, most economic thinking sidestepped the sheer value of human interaction in favor of explanations about the proximity of manufacturing, or the processes of production.

This explanation for the power of cities also raises some curious questions about those places that remain an exception to the model. In some African cities and Eastern mega-cities, innovation and productivity don’t grow super-linearly. Populations grow, but the benefits don’t accrue with them as we would expect. This is likely because transportation infrastructure in those places is so poor that people aren’t able to connect across town to each other. “To live on the west side of Beijing,” Pan says, you never go to the east side.”

What I find fascinating is to analyse whether the internet has the ability to change this fundamental relationship – because it’s now so easy to be in instant contact with a huge number of people no matter where you are. Yet none of the recent research seems to suggest that technological advances make agglomeration less important – in fact it seems like as employment specialises more and more, agglomeration actually becomes more critical than ever.

Auckland’s Economic Future

Auckland feels like it’s at the cusp of something of a transition between being an ‘overgrown town’ and a ‘real city’ – with the distinction between the two manifesting itself in the difference between the Council’s vision for Auckland and central government’s vision. In the transport arena, central government thinks that the biggest problem is congestion on Auckland’s roads – which needs to be solved through building more roads. This makes sense if you think of Auckland as just an overgrown town – where widening a road normally seems to fix the transport problem faced. However, it doesn’t work in a large city and alternative approaches – like building a high quality public transport system – are increasingly necessary.

An article in yesterday’s Herald articulated the growing recognition – once again seemingly mainly led by the Council – that Auckland’s scale provides economic opportunities and the potential to be the “growth giant” of the country which simply don’t exist elsewhere in New Zealand:

Auckland Council chief economist Geoff Cooper says the city’s growth is far outstripping the rest of New Zealand.

“Auckland will add a person to its population every 19 minutes. This compares to one person every two hours for Christchurch and one person every 2.5 hours for Wellington,” he says.

With that rate of growth will come big challenges, especially on infrastructure, particularly tunnels, tarmac and bridges.

As the only chief economist employed by a territorial authority in New Zealand, Cooper says he is in a unique position, able to provide a level of data beyond many other councils’ resources.

Auckland is a powerhouse for the national economy, Cooper says, and average labour productivity for firms in the CBD is 139 per cent higher than outside the Auckland region, according to a Motu study.

“This shows just how important the central city is, not just for Auckland, but for New Zealand as a whole.

“Auckland firms are prepared to pay a high rental premium because of these returns. Creating an accessible and high-amenity city centre will be critical in allowing more firms to take advantage of these returns and generate a high performing business district,” he says.

There’s an interesting conundrum around Auckland’s rate of growth compared to the rest of the country – in that as Auckland gets bigger it creates a wider variety of economic opportunities and a sheer scale which improves productivity. Yet at the same time, to enable economic growth Auckland needs investment in infrastructure, spending that probably wouldn’t be necessary if that same growth happened elsewhere in the country. For example, Invercargill could probably cope with quite a lot more growth before needing any major transport investment.

That sort of “distributing growth” approach seems like it was perhaps more suited to economies of two or three decades (and beyond) ago, that modern 21st century economies. When lots of employment is in low-skilled manufacturing then it doesn’t really matter where the factory sets up – and looking around New Zealand there are still quite a lot of large factories in fairly small towns (resulting in those towns generally becoming incredibly dependent on that industry). However, in more service and knowledge focused economies with a greater and greater focus on skills, agglomeration benefits, specialisation and so forth. In this type of economy, large cities with large and diverse labour pools tend to do well.

Perhaps this is reflected in Auckland’s economy doing reasonably well in recent times:

“As Harvard professor and urban economist Edward Glaeser notes, ‘despite the technological breakthroughs that have caused the death of distance, it turns out the world isn’t flat, it’s paved. The city has triumphed’,” Cooper wrote.

The Auckland economy grew by 2.1 per cent in the past 12 months.

“While this is not particularly glamorous in its own right – Auckland’s 10-year average is 2.5 per cent – against the backdrop of a European sovereign debt crisis, a double-dip recession for Britain, stuttering growth for Germany and a reduced growth outlook for China, it looks rather more attractive,” Cooper said.

I think I fall on the side of taking advantage of Auckland’s potential size and the economic opportunities it provides, even if that comes at the cost of additional infrastructure. Distributing growth may have worked OK in the mid-2oth century economy but it just doesn’t seem to be the way of the future. This decision has some massive implications, perhaps the most relevant one to this blog is the key importance of projects like the City Rail Link in enabling Auckland to achieve its potential.

Almost the world’s most liveable city

The 2012 Mercer Quality of Living Ranking survey has Auckland as the world’s third most liveable city – retaining the same ranking as 2011. The survey is designed to assist employers in the placement of expatriate staff and how much they should receive in living allowances, so the results tend to indicate quality of living if you’re really well off, however they give a useful guide. Here are the top 20:The explanation for how the results are collated is helpful in making sense out of them:

Mercer evaluates local living conditions in more than 460 cities it surveys worldwide. We analyze living conditions according to 39 factors, grouped in 10 categories:

Political and social environment (political stability, crime, law enforcement)
Economic environment (currency exchange regulations, banking services)
Socio-cultural environment (censorship, limitations on personal freedom)
Medical and health considerations (medical supplies and services, infectious diseases, sewage, waste disposal, air pollution, etc.)
Schools and education (standard and availability of international schools)
Public services and transportation (electricity, water, public transportation, traffic congestion, etc.)
Recreation (restaurants, theatres, movie theatres, sports and leisure, etc.)
Consumer goods (availability of food/daily consumption items, cars, etc.)
Housing (rental housing, household appliances, furniture, maintenance services)
Natural environment (climate, record of natural disasters)

The scores attributed to each factor allow for city-to-city comparisons. The result is a quality-of-living index that compares relative differences between any two locations that we evaluate. For the indices to be used effectively, Mercer has created a grid that allows users to link the resulting index to a quality-of-living allowance amount by recommending a percentage value in relation to the index.

For 2012, Mercer also prepared an Infrastructure Index, based on Electricity, Water Availability, Telephone, Mail, Public Transportation, Traffic Congestion & Airport Effectiveness. The results for this index are in many places quite different, with Auckland dropping from 3rd for liveability to 43rd for infrastructure provision. This most likely highlights that transport, particularly public transport I suspect, is the main barrier to becoming number one. The table below runs a comparison between the lists for those cities which appeared in both lists – those which scored better in the infrastructure are shown in green and those that scored better in the liveability are shown in red:It’s interesting that Auckland and Wellington are the two cities which outperform their infrastructure score in the final liveability ranking so much. What’s also interesting is that the cities with the top two infrastructure scores which haven’t corresponded to ending up in the top 50 liveable cities are Dallas and Atlanta: notoriously car dependent cities.

What is very interesting is that Auckland’s poor infrastructure score, relative to liveability, is perhaps reflected in Auckland generally scoring quite lowly in terms of economic performance compared to a number of these other cities. This is outlined in the Economy chapter of the Auckland Plan quite starkly:

Measured internationally, Auckland’s performance is relatively poor: it is ranked 69th out of 85 metro regions in the Organisation for Economic Co-operation and Development (OECD) in terms of GDP per capita. New Zealand’s economic performance has declined relative to other OECD countries in terms of GDP per capita to its position at 21st, but has stabilised at around 80% of the OECD median.

Pulling a few strands together, I think there’s likely to be an argument that Auckland’s historic under-investment in infrastructure – particularly the kind of transport infrastructure that encourages productivity through boosting employment densities – has held back our economic growth. This is reflected not only in our relatively poor economic performance, but also in our relatively low infrastructure scores in the Mercer survey. Because our transport investment in the past has been so focused on encouraging employment dispersal we have missed out on the agglomeration benefits that would have otherwise been enjoyed and therefore missed the economic growth that we should have had.

Fortunately there seems to be a growing recognition of this faulty thinking and a growing realisation that smart transport investment is about encouraging and facilitating land-use patterns which support economic growth – particularly through agglomeration. Let’s hope the government finally starts to understand this point and sees how critical a project such as the City Rail Link is in boosting Auckland’s economic productivity by allowing much greater employment densities in the city centre and in major centres on the rail network across Auckland. I can’t say I have too much hope though, sadly.

The CBD is the future of employment

An interesting Australian article highlights something that has perhaps slipped under the radar of many – that a huge implication of economies in countries like New Zealand shifting away from manufacturing and more towards knowledge industries is a likely changing of the geography of employment. The Australian Federal Minister of Infrastructure and Transport, Anthony Albanese, notes that Australian cities are facing increasing competition from growing cities in Asia, while at the same time facing the aforementioned shift in employment types. Let’s pick up a few key paragraphs:

 Albanese noted that Australian cities will continue to face competition from a growing number of larger cities in the region.

“That puts a major incentive in dealing with how we position ourselves in our increasingly urbanised and increasingly affluent region,” he said. “Our cities have to be more productive. Productivity isn’t everything, but in the long run it’s nearly everything.”

Albanese added that the changing nature of cities will mean more need for inner-urban medium density housing as work increasingly shifts away from outer urban areas toward city centres.

“In terms of economic functions, our cities are shrinking in on themselves,” he said. “The forces which drove the spread of our cities in the post-war period, predominately manufacturing, are being replaced by knowledge industries – the banking, legal, insurance and myriad of other business services.”

Albanese pointed out that the changes will continue to influence the shape of cities in Australia.

“Whereas manufacturing plants which are traditionally located on the city fringe or in industrial zones, the job-rich knowledge industries tend to concentrate in the heart of our cities,” he said. “As the State of Australian Cities reports, this trend is seeing more and more workers commuting into our city centres.”

There’s a bit of a myth (perhaps another one for our list) that Auckland’s city centre is somehow dying and becoming increasingly irrelevant as employment disperses wider and wider throughout the region. Furthermore, there are often quotes that only 13-15% of Auckland’s jobs are within the motorway ring that’s generally used to define the CBD. Yet as Matt showed in a recent post, the city centre and its fringe is actually still by absolutely miles the largest concentration of employment in Auckland. Furthermore, as shown in the map below, by far the greatest concentrations of employment – in terms of jobs per hectare, are in meshblocks located in the CBD:


There has long been debate between the Council and Central Government over the future projections for employment numbers in the city centre, which seems to be quite critical to how well the business case for the CRL stacks up. If we follow the trends that are increasingly seen in Australia – and which just seem pretty logical as our economy transitions more and more to a post-industrial state – then a reconcentration of employment downtown seems likely (and also incredibly desirable in terms of economic productivity). Which, of course, makes the case for CRL even more compelling.

Urban Transport Economics

Recently Auckland Transport and Ernst and Young hosted a seminar on the economics of urban transport. Sadly we didn’t get an invite but at least AT have videoed the presentations and put them up online.

First we have Paul Buchanan who is an international transport economist. The presentation is here.

There were a couple of things I found really interesting:

  • His points on the use of travel time savings to justify projects as well as the failure to take into account land use changes as a result of the investment. Travel time savings are something that makes up the bulk of the benefits in projects like the RoNS and it suggests we need to radically change how we view our economic analysis.
  • That we have to think stronger about how the impacts of safety as measures put in place in the name of safety often can have unforeseen negative impacts.
  • The importance and impact that CBDs have on the economy.
  • The importance of not only having a good natural environment but a good urban one to make it attractive to potential employees. This is something we are just starting to get with the improvements that have been happening in the CBD like the shared spaces.
  • The development impacts that cars, buses and trains have on development patterns. In particular the upward spiral of development and demand that rail can generate that simply isn’t possible with cars.
  • We have to be careful not to put too many buses into our city centre so that we don’t choke it and make it an unattractive place.

Next we have local economist John Williamson who gives a bit more detail on the things in Auckland and how they compare to the rest of NZ. You the presentation is here.

And last we have Joanne Ogg of Ernst and Young who talked about the move to their new offices right above the eastern entrance to Britomart. What I found interesting was once again more evidence of a generational shift that is occurring where young people are increasingly wanting different transport options and how rail in particular is key to that. My wife would fall into that category and chose the area we did because of the easy access to the train station simply because we want transport options available to us.

What I think these talks highlight is how important it is that we focus on the city centre if we are really keen to get good long term economic growth. Central to that is the need to be able to move more people into and out of the area at key times while at the same time making our street level environments much nicer places to be which will mean reducing road space. The only way we can really do that is through projects like the CRL. I wonder if any of those present were from the NZTA, MoT or Treasury because it seems like they could sure do with learning a bit more about this stuff.

Return of the walking city

..The City is never complete, never at rest. Thousands of witting and unwitting acts every day alter its lines in ways that are perceptible only over a certain stretch of time. -Spiro Kostof


Looking south along Queen Street from corner of Customs Street showing the Waitemata Hotel (Sir George Grey Special Collections, Auckland Libraries, 1-W519)

I was inspired by Patrick’s recent transit dividend post where he documented the laneways around the Pacific and Matt’s people buy stuff and wanted to look a little closer at the things happening on the street which to me are fascinating and representative of a highly dynamic urban ecosystem. In particular, over the last year I believe I have witnessed Auckland’s return as a walking city. Recall that before Auckland was conventionally considered a “car city”, it was a streetcar city, a walking city, and a water city, and of course many combinations of these all, and somewhere in there an airport city and PT city.

Melbourne Laneway (source: Patrick Reynolds)

Melbourne’s famous laneways are a fantastic story. They are symbolic of an urban transformation that the city has undergone over the last 20 years. Especially interesting to me is that these laneways weren’t built into the modern block structure. Instead they were introduced over the years by what urban scholar Arnis Siksna argues is an largely predictable process to provide better performance. Siksna studied (pdf) cities across North America and Australia and concluded that areas with high intensity of pedestrian traffic performed best with a short block system (a “pedestrian mesh”) of between 50-70m. Melbourne, like many other Australian cities, was designed with much larger block sizes closer to 200m. He documents that over time these over-sized blocks are predictably broken down, through “successive uncoordinated actions of individuals”, to facilitate a more efficient land pattern, one that provides better circulation patterns and more potential lot frontages.

Modifications to original block layout of Melbourne, Modified from Siksna (1996)

Auckland also has many examples of areas with short blocks,  laneways, and arcades on some of the larger blocks. The real transformation in Auckland  is occurring at the street frontage level- with the emergence of micro retail. While Melbourne’s laneway system developed over decades, this retail transformation and adaptation is occurring over night.

People rule: slow traffic, short crossing waits (20-30 secs.), frequent transport

There are several major shifts which have spurred this phenomenon. First, and most important, is the accommodation of pedestrians. This has been done through major signal timing and street crossing improvements, slower traffic speeds, and increased pedestrian mobility via a web of new shared space laneways.  Second, is the increase concentration of pedestrians using the street as a conduit to and from public transport. And finally, the challenging urban retail environment itself has been adapting to the competition from both web-based and more suburban retail models.

According to Heart of the City there are over 25,000 people walking along Queen Street every day. If you have been downtown recently no doubt you have experienced the days with thousands of people walking shoulder to shoulder on footpaths while cars trickle down Queen Street. In one of my previous posts I suggested that streets are a platform for exchange, and nestled in a highly connected (laneways, short blocks, layers of transportation) create the most valuable real estate.

Retailers “plugging in” to the value of the street, Auckland

There couldn’t be a better example of the free market “plugging” into the value of the street, remember People Buy Things Not Cars. Using a scientific metaphor the micro retail trend, like it’s international counterpart the foodcart, is capitalising on the value of the street by increasing its surface-to-area ratio. Here’s wikipedia:

An increased surface area to volume ratio also means increased exposure to the environment. The many tentacles of jellyfish and anemones provide increased surface area for the acquisition of food. Greater surface area allows more of the surrounding water to be sifted for nutrients.

And how does a property owner increase surface area? In Melbourne, they broke down large blocks. While this was described as providing an efficiency for movement,  I’m sure the business owners weren’t so altruistic, instead they were more likely attempting to “acquire their food”. In Auckland, it’s more of an effective increase of surface area by finely breaking down the store front space. Here’s what businesses looks like trying to plug in the value of the street. This crepery (below) measures 105 cm across its front. Most other shops are about 3 metres. At that dimension we are entering the domain of Venice, Italy store fronts which have a typical dimension of 3 metres. Yes, that Venice that is a car free city.

Pedestrian scale, Auckland (photos: Scot Bathgate)

As prominent urban designer Jan Gehl notes:

When buildings are narrow, the street length is shortened, the walking distances are reduced, and street life is enhanced.

This concept of store front variety is one among many urban design imperatives that is often turned into a endless list of guidelines, codes and regulations. For example, buildings should be placed on the street edge, have transparent glazing, not be too wide, have a diversity of uses, etc. It is my theory that these reasonable outcomes don’t create vibrant cities, instead they are the outgrowth of them. What creates vibrant cities is the existence and especially the accommodation of people within a traditional urban street network supported by various transportation options.

Surface-to-area, maximising the value of the street. Queen Street, Auckland.

As an extreme example, imagine a property owner choosing to provide parking in front of his store which would obstruct the other 25,000 people on foot. Or imagine a property owner who would allow a large monotonous land use like a bank take up excessive store front space and create a dead space. With the return to the pedestrian city these urban design issues become moot, since no one would jeopardise their premium real estate asset which is the street frontage.

Instead, what I think will happen, and largely what is already happening, is that the city centre will becoming increasing re-scaled for people on the street. The outcome will be closer to what typically could be considered traditional, almost European-type urbanism, what has traditionally only occurred on High Street. This means increasing micro-retail uses. Also, large office uses will be wrapped internally with street-serving business. This is typically how old theatres such as the Capital on Dominion Rd address the street, by a narrow passage allowing  users into a large internal space but not wasting surface area unnecessarily.  At some point there will be undoubtedly be increasing break-down of city blocks to further access property value of the street,  just as what happened in Melbourne.

Micro retail: a dynamic and resilient urban model

The amount that the city has changed over the last year is remarkable. As someone who can’t wait for things to change, and has all but given up on formal planning, it’s exciting to see how much change is occurring on its own.  While some of it is due the impressive physical improvements of he public realm, most of it is an outgrowth of thousands upon thousands of individual choices, many of which are facilitated the provision of public transport and by simply accommodating the people that are already there.