Years of car-focused suburban designs have unleashed problems in the 21st century that we will have to deal with and accommodate. The years of the suburbs are coming to an end and it can’t be soon enough. With every passing years more and more municipalities discover that urban design is the better choice.

The above image is composed of data taken from a report done by Halifax in 2005. Undoubtably the costs of supporting suburban households has only increased relative to urban housing.

Recently, the New Climate Economy released a report titled Analysis of Public Policies that Unintentionally Encourage and Subsidize Sprawl and advocates for a change to policies to encourage better urban design.

The report, Analysis of Public Policies that Unintentionally Encourage and Subsidize Sprawl—written for the New Climate Economy by the Victoria Transport Policy Institute, in partnership with LSE Cities—details planning and market distortions that foster sprawl, and smart growth policies that can help correct these distortions.

Sprawl increases the distance between homes, businesses, services and jobs, which raises the cost of providing infrastructure and public services by at least 10% and up to 40%. The most sprawled American cities spend an average of $750 on infrastructure per person each year, while the least sprawled cities spend close to $500. In its Better Growth, Better Climate report, the New Climate Economy has found that acting to implement smarter urban growth policies on a global scale could reduce urban infrastructure capital requirements by more than US$3 trillion over the next 15 years.

The New York Times ran an article on urban versus suburban costs back in 2010.

So we set out to do the math, based on an apartment and a house in the New York metropolitan area. Here’s what we found: a suburban lifestyle costs about 18 percent more than living in the city. Even a house in the suburbs with a price tag substantially lower than an urban apartment will, on a monthly basis, often cost more to keep running.

It’s very clear that as we populations grow urban design needs to focus on sustainable infrastructure planning and all of us should encourage it.