Behavioral Shift in the Way We Drive

When "peak car use" is reached, the only way to go is down, claim Australian scholars Peter Newman and Jeff Kenworthy. They say we're already there - between 1995 to 2000, per capita VMT in some major cities around the world decreased.

1 minute read

July 14, 2011, 1:00 PM PDT

By Jeff Jamawat


The Infrastructurist reports, "In Europe, London dropped 1.2 percent, Stockholm 3.7, and Vienna 7.6. In the United States, Atlanta fell 10.1 percent and Houston 15.2; even Los Angeles fell 2 percent."

Newman and Kenworthy outline six factors that influence this trend in June 2011 issue of World Transport, Policy & Practice: (1) one-hour threshold that people are willing to spend on the road each day, aka the Marchetti constant; (2) growth of public transit; (3) reversal of sprawl; (4) aging population; (5) rise of urbanism; and (6) cost of petro.

"Peak car use suggests that we are witnessing the end of building cities around cars at least in the developed world," say the duo.

Thursday, July 14, 2011 in The Infrastructurist

"Planetizen federal action tracker" logo superimposed over black and white image of US Capitol dome.

Planetizen Federal Action Tracker

A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

October 28, 2026 - Zachary Whalen

A car drives through a puddle, making a large splash. Rain pours down.

California plans to bury El Niño’s downpour

If the state plays its cards right, it may be able to store a billion acre-feet of El Niño’s water in aquifers.

October 28, 2026 - Grist

Lake Powell with much of the water evaporated.

Desperate measures: Advocates weigh draining Lake Powell to fill Colorado River

Draining the reservoir could reduce evaporation losses by a couple hundred thousand acre-feet.

October 30, 2026 - Yale Environment 360

Nithya Ramen talks to an older man. She is smiling and wearing a yellow dress. They are both outside.

Los Angeles just elected an urban planner as its mayor

Transportation analysts are optimistic that Raman will be more aggressive in addressing transit issues than Bass.

5 hours ago - Los Angeles Times

Mamdani behind a microphone, in front of a snowbank

Mamdani’s pied-à-terre tax survives legal challenge

A panel of judges found that the plaintiffs failed to demonstrate injury as a result of New York City's implementation of the tax.

November 6 - CNN

A road in north eastern Nebraska with power lines on either side, and grassy fields.

Eastern Nebraska is running out of electricity

Data centers and electrification are straining eastern Nebraska’s grid, throttling economic development.

November 6 - Grist

FREE Course: Walkable City 1: Why Walkability?

After describing his path towards focusing on walkability as the essence of good planning, Jeff Speck marches through his five principal reasons for making more walkable places.

Reinventing Malls: Planning Alchemy—Turning Gray Fields Into Gold

The course focuses on the opportunities and imperatives that shape reinvention of mall sites.