Patent ID: 8344908

Claim:
A method for managing traffic signal preemption data accumulated at a plurality of intersections, comprising: reading the preemption data stored by respective preemption controllers at the intersections, wherein the preemption data includes, for each preemption request, an emitter code, and a date and a time the preemption request was submitted by an emitter to the respective preemption controller; storing the preemption data read from the intersections in a database; associating each emitter code with a vehicle name in the database; in response to a first user command identifying one or more emitter codes and an agency having one or more vehicles with one or more emitters that generate the one or more emitter codes, respectively, storing data in the database for each of the one or more emitter codes indicating the codes are associated with the agency; reading selected preemption data and vehicle names from the database in response to a second user command; and in the preemption data read from the database, counting for each emitter code in the preemption data, a total number of preemption requests having the emitter code; and displaying the vehicle names, total numbers of preemption requests for the associated emitter codes, and agencies associated with the emitter codes; wherein the reading of preemption data from the intersections, storing, associating, reading of preemption data from the database, and displaying are performed with a programmed computer; and wherein storing the preemption data includes storing data identifying the intersection from which preemption data was read.