Vehicle miles, the amount people drive is up 6% from two years ago. so americans are hitting the road, and with that, you will notice increases in congestion, especially around those urban areas. >> so l.a. of course is not alone, here are the most congested cities in the u.s. l.a., new york, say for cisco, atlanta, miami, d.c., dallas, boston, chicago, and seattle, 25 worst cities in the world, 1. why? cheap gas, stronger economy, growing urban population and a better economy means more trucks which means more decay which means more road repairs which means more constructions cruise which mea...