The Benefits Of Scrapping Old Cars

Are vehicle buy-back programs reducing emissions?

1 minute read

October 12, 2004, 1:00 PM PDT

By Chris Steins @planetizen


"Older vehicles contribute disproportionately to overall air pollution.In 2000, the San Francisco Bay Area’s pre-1986 light-duty vehicles(cars and light trucks) accounted for about twelve percent of vehiclemiles traveled (VMT) by all light-duty vehicles. However, these oldervehicles contributed more than half the reactive organic gas (ROG)emissions—a component of smog—from all light-duty vehicles. Theproblem will not go away soon.

...Are vehicle buy-back programs reducing emissions? Yes—to some extent. The BayArea’s program is attracting older vehicles that are driven regularly, though not the mostheavily used ones. Most vehicles would have been driven for a few more years, and mostparticipants do replace the vehicles with newer, thus presumably cleaner, ones.It would be better if the program could attract higher-use vehicles. Lower-incomehouseholds that drive their older vehicles a lot are not participating as much as expectedand are unlikely to replace the vehicle with the least polluting, newest vehicles. Severaloptions could help reduce emissions from these older vehicles: offer to repair or retrofitvehicles as an alternative to scrapping; offer more money, perhaps on a sliding scalebased on income; tie the amount of the incentive to the emissions levels of the replacementtransportation; identify higher-use, higher-polluting vehicles through remotesensing and motor vehicle records and market the program to those car owners."

[Editor's note: The link below is to an 800 KB PDF.]

Thanks to PreservingtheAmericanDream Listserv

Monday, October 11, 2004 in University Of California Transportation Center

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

Use Code 25for25 at checkout for 25% off an annual plan!

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.

May 7, 2025 - Diana Ionescu

Person in yellow safety suit and white helmet kneels to examine water samples outdoors on a lake shore.

USGS Water Science Centers Targeted for Closure

If their work is suspended, states could lose a valuable resource for monitoring, understanding, and managing water resources.

May 1, 2025 - Inside Climate News

Wide suburban road with landscaped median and light pole banners advertising local amphitheater.

End Human Sacrifices to the Demanding Gods of Automobile Dependency and Sprawl

The U.S. has much higher traffic fatality rates than peer countries due to automobile dependency and sprawl. Better planning can reduce these human sacrifices.

April 29, 2025 - Todd Litman

Bird's eye view of Salesforce Park in San Francisco, CA.

San Francisco Enhances Urban Planning Initiatives with Green Infrastructure

San Francisco incorporates green infrastructure in its city development initiatives, elevating the importance of sustainability in urban planning.

5 seconds ago - The Daily Californian

Aerial view of Chicago with river in foreground.

Chicago Approves Green Affordable Housing Plan

The Mayor’s plan calls for creating a nonprofit housing corporation tasked with building affordable housing that meets Green Building standards.

1 hour ago - CBS News Chicago

Electric car charging area in a parking lot at a Costco in Clermont, Florida.

House Committee Proposes $250 EV Tax

The fee is higher than the average tax paid by gas-powered vehicle owners.

2 hours ago - The Washington Post

Urban Design for Planners 1: Software Tools

This six-course series explores essential urban design concepts using open source software and equips planners with the tools they need to participate fully in the urban design process.

Planning for Universal Design

Learn the tools for implementing Universal Design in planning regulations.

Comprehensive Bikeway Design Workshop

Transportation Research & Education Center (TREC) at Portland State University

Early Bird Deadline – save on your tuition fee!🚨

Institute for Housing and Urban Development Studies (IHS)