A recent Georgia Tech study found 40 different ways transportation agencies could use drones/UAV's. They include analyzing congestion hotspots and monitoring vehicle speeds.
http://www.roadsbridges.com/traffic-management-georgia-dot-contemplating-drones-traffic-control
Do you have any ideas about how drones could be used in the transportation industry?
This is an awesome video of an intersection in Saigon, Vietnam. I really like the perspective you get shooting straight down.