Have You Noticed Fewer Cars on the Road Lately?

While the decline may not be visible, total auto ownership peaked in 2008 according to a new report by Michael Sivak of the University of Michigan's Transportation Research Institute. He set out to determine the cause - was it the economic recession?

2 minute read

June 20, 2013, 10:00 AM PDT

By Irvin Dawid


As an associate editor at The Atlantic, Jordan Weissmann has been following the reduction of driving in the U.S and written about the reduction in younger drivers. He wanted to know if "the U.S. is getting over car culture", or if the driving reduction was mainly a product of the economic downturn. He looked toward Sivak's findings (PDF) for an insight. 

Sivak analyzed the period from 1984 through 2011. He examined the registration "of light-duty vehicles (cars, pickup trucks, SUVs, and vans) for each year from 1984 through 2011."

Its key take-away is that the number of cars per household actually began to decline pre-recession, after 2006. Same goes for cars per licensed driver and cars per person. 

In fact, the accompanying graph shows it all, with the vehicle registration rate - per person, per licensed driver, and per household, peaking around 2006 - before the recession which is recognized as beginning in December, 2007 per U.S. Bureau of Labor Statistics (PDF).

Yet, Weissmann is not entirely sold, pointing to pre-recession economic factors, e.g. home values peaked in 2006 and suspects that influenced car ownership rates.

He concludes that "(t)he decline of car ownership might well turn out to be a long-term trend with cultural and demographic roots. But if so, the housing bust and recession still seem to have been the tipping point."

He may be partially correct - if you distinguish between absolute numbers and rate of ownership.

From Sivak's abstract (PDF):  "...with the improving economy and the expected increase in the U.S. population, it is highly likely that (from a long-term perspective) the absolute number of vehicles has not yet peaked." However, if you believe Sivak, the rate of ownership peaked seven years ago.

Wednesday, June 19, 2013 in The Atlantic

portrait of professional woman

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching. Mary G., Urban Planner

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching.

Mary G., Urban Planner

Cover CM Credits, Earn Certificates, Push Your Career Forward

Aerial view of town of Wailuku in Maui, Hawaii with mountains in background against cloudy sunset sky.

Maui's Vacation Rental Debate Turns Ugly

Verbal attacks, misinformation campaigns and fistfights plague a high-stakes debate to convert thousands of vacation rentals into long-term housing.

July 1, 2025 - Honolulu Civil Beat

Logo for Planetizen Federal Action Tracker with black and white image of U.S. Capitol with water ripple overlay.

Planetizen Federal Action Tracker

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

July 2, 2025 - Diana Ionescu

White and purple sign for Slow Street in San Francisco, California with people crossing crosswalk.

San Francisco Suspends Traffic Calming Amidst Record Deaths

Citing “a challenging fiscal landscape,” the city will cease the program on the heels of 42 traffic deaths, including 24 pedestrians.

July 1, 2025 - KQED

Google street view of red brick multi-story power plant building in Pittsburgh, PA.

Defunct Pittsburgh Power Plant to Become Residential Tower

A decommissioned steam heat plant will be redeveloped into almost 100 affordable housing units.

July 4 - Pittsburgh Post-Gazette

Cyclist on protected bike lane in middle of street in Washington D.C. with Washington Monument obelisk visible in background.

Trump Prompts Restructuring of Transportation Research Board in “Unprecedented Overreach”

The TRB has eliminated more than half of its committees including those focused on climate, equity, and cities.

July 4 - Streetsblog USA

Blue and silver Amtrak train at small station.

Amtrak Rolls Out New Orleans to Alabama “Mardi Gras” Train

The new service will operate morning and evening departures between Mobile and New Orleans.

July 3 - New Orleans City Business