Patent ID: 7667618
Filing Date: 2010-02-23
Classification: G07B,G08G

Abstract:
1. A system comprising: one or more transponders, each transponder located in a vehicle capable of being driven on a road having at least a first lane and a second lane in which vehicles move in a same direction; a plurality of sensors, each sensor located at a point along the road to detect the transponder of each vehicle that has changed between the first and the second lanes of the road at the point; and, a tracking component communicatively coupled to the sensors to track when and at which of the points the vehicles have changed between the first and the second lanes of the road, wherein the sensors comprise: wherein the first length of the road is shorter than the second length of the road, wherein within a given time period a cost for a vehicle to drive in the second lane within the first length of the road is a first cost, and within the given time period a cost for a vehicle to drive in the second lane within the second length of the road is a second cost, the second cost being greater than the first cost even within the given time period, wherein the first length of the road is located between the first point and the second point, and no sensors are located between the first sensor at the first point and the second sensor at the second point.