One of the fundamental reasons why we think Auckland needs to transform its transport system by focusing on the modes that have missed out so much attention over the last 60 years (public transport, walking and cycling) is because our current car dependency is incredibly expensive. Not only is it a burden on ratepayers and taxpayers in the future – with our crazy $68 billion roading bonanza – but also a transport system where seemingly every household needs to own, maintain and operate two or more cars is actually incredibly expensive for them. And therefore, for the whole country in aggregate.
Statistics New Zealand’s recent release of the 2013 Household Economic Survey contains a lot of information about what people spend their money on each week. At a broad level, transport seems to have had the greatest increase in per household expenditure from 2010 to 2013:
Digging into the details a bit more and taking the data back to 2007 reveals some interested trends. The biggest increases are in the Private transport and supplies sector of which petrol makes up about 60%. Passenger transport is the only category to consistently increase however that also includes air travel which makes up more than half of the figure so it isn’t all public transport.
An average of ~$160 per household per week on transport related activities seems like a lot. As a proportion of household income, transport rose from 12.9% to 14.2% between 2010 and 2013:
Typically cities that are more car dependent have higher transport costs per household – meaning that providing better transport options so households don’t need to own that second car or don’t need to drive so far each week (therefore saving on petrol) can have a huge impact on their household budgets and financial wellbeing.
Unfortunately, none of these effects really seem to be captured by our current cost-benefit analysis process – perhaps because it fundamentally assumes that people are ‘willing’ to pay for these costs because they are the private cost of transport. That kind of misses the point though – which overall is that Auckland’s car dependency means households need to more money on transport than they might otherwise want to. In aggregate this really hurts Auckland’s social and economic wellbeing because it means we can’t afford to spend as much on housing, food and many other more fun areas of expenditure than simply getting around.