Before revision: They can also damage vehicles if the curbs extend too close to traffic lanes.Albany Times Union "MOTORISTS TAKE HIT ON ROAD PROJECT" July 19, 2004, URL retrieved 29 June 2010 Curb extensions have not been found to affect the speed of vehicle traffic.Pedestrian and Bicycle Information Center, "Do curb extensions reduce speeds" Retrieved 23 June 2010 Author Randal O'Toole argues that curb extensions are used to discourage the use of automobiles by reducing the number of lanes available for automobiles.
After revision: They can also damage vehicles if the curbs extend too close to traffic lanes.Albany Times Union "MOTORISTS TAKE HIT ON ROAD PROJECT" July 19, 2004, URL retrieved 29 June 2010 Author Randal O'Toole argues that curb extensions are used to discourage the use of automobiles by reducing the number of lanes available for automobiles.