Mobile Platform for Overhead Detectors of Road Vehicles

Résumé du livre

The California Department of Transportation (CALTRANS) has a need to monitor traffic flow over freeways. Currently, this is done mainly through the use of "loop detectors." These are measuring devices that are buried under the road pavement, and that can indicate whether or not a vehicle is present, and give qualitative speed relationships. Because this class of detectors are known to have low reliability, CALTRANS is working on developing a new family of sophisticated electronic sensing devices for the purpose of monitoring certain characteristics of road vehicles as they move along the highway. The devices currently under development are to be located overhead individual highway traffic lanes, from where they can have a clear "view" of ground vehicles. In order to deploy these devices, there is a need to develop the capability to safely and efficiently mount them above highway traffic lanes, using existing overhead bridges and sign structures as support structures.