SUVs lumber through intersections

AP photo.

From an e-list:

The Kara Kockelman (UT Austin) study shows that for every three cars that get through an intersection from a full stop, only two SUV/light trucks get through. Her results are sometimes provocative: for example, from traffic data, she calculated that a large SUV slows traffic by spending as much time lumbering through an intersection as 1.41 passenger cars.

Raheel Shabih and Kara M. Kockelman, "Effect of Vehicle Type on the Capacity of Signalized
Intersections: The Case of Light-Duty Trucks," UT Austin, 1999.

Cited in the Congestion Cost section of a paper on Transportation Cost and Benefit Analysis by VTPI.

Also see "Big and Bad: How the S.U.V. ran over automotive safety," by Malcolm Gladwell in the New Yorker.