The five myths set forth below came from an excellent article by Urbanist Executive Director Doug Trumm, published in Streetsblog USA on December 29, 2020.
“If you’ve pushed back against a highway project, on the basis that catering to single occupancy vehicles is driving carbon emissions………………you’ve probably heard a few of the following myths about road widening and how good it is for the climate and environment”.
Myth 1: Car idling is bad for the environment so wider roads with free-flowing traffic is good for the environment.
The federal Department of Energy estimates that 2 percent of auto emissions come from idling. This means that if all idling were eliminated by making the traffic free-flowing, it would take just a 2 percent increase in the traffic using the newly unjammed roadways to equal the idling emissions saved.