Are traffic-clogged U.S. cities ready for congestion pricing?

New York is the latest city to contemplate congestion pricing as a way to deal with traffic problems. This strategy, which requires motorists to pay fees for driving into city centers during busy periods, is a rarity in urban ...

Road pricing most effective in reducing vehicle emissions

Motor vehicles are a major source of air pollution in urban areas, and for decades municipal and regional governments have used various traffic management strategies in an effort to reduce vehicle emissions, alongside advancements ...

Solo hybrid drivers in carpool lanes amplify gridlock

Allowing single-occupant hybrid cars to use carpool lanes – on some of Los Angeles' busiest highways during rush hour, no less – creates crushing congestion and about $4,500 per car in adverse social costs annually. That ...