63 percent of Raleigh residents are driving less

Kristen Crosson gets a nifty 45 miles per gallon in her hybrid Prius, but she really cut her gas costs when she turned the car into a car pool.On her lunch hour at the State Office of Budget and Management, Crosson logs miles and prices on a spreadsheet and checks the numbers with a noisy adding machine.

She bills Donna Aldridge and Karena Bailey, her new car-pool buddies, for their share of the gas.

"I was spending $16.62 a week for gas and parking to drive by myself," said Crosson, 32, who lives in Morrisville, 14 miles from her downtown Raleigh office. "Now, with Donna and Karena riding, my cost each week will be $6.52."