Building Roads to Cure Congestion Is an Exercise in Futility

University of Toronto professors say that building more roads just encourages more driving. Building transit doesn't help reduce congestion either, though it still maximizes the value of the transportation system.

Tanya Snyder reports:

"In a paper to be published soon in the American Economic Review, two University of Toronto professors have added to the body of evidence showing that highway and road expansion increases traffic by increasing demand. On the flip side, they show that transit expansion doesn't help cure congestion either.

We'll spare you the calculus in the report. Here's the upshot: "Roads cause traffic.""

Thanks to Tanya Snyder

Full Story: Study: Building Roads to Cure Congestion Is an Exercise in Futility


Prepare for the AICP* Exam

Join the thousands of students who have utilized the Planetizen AICP* Exam Preparation Class to prepare for the American Planning Association's AICP* exam.
Starting at $245
Book cover of the Guide to Graduate Planning Programs 4th Edition

Thinking about Grad School?

The Planetizen Guide to Graduate Urban Planning Programs is the only comprehensive ranking and listing of graduate urban planning programs available.
Starting at $24.95

Wear your city with style!

100% silk scarves feature detailed city maps. Choose from five cities with red or blue trim.
building block set

NEW! Build the world you want to see

Irresistible block set for adults when placed on a coffee table or desk, and great fun for kids.