Patent ID: 11941978
Assignee: TRAFFIC TECHNOLOGY SERVICES, INC.
Field: Control (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A method comprising:
selecting a subject intersection, wherein the subject intersection is a physical intersection controlled by electric traffic signals based on at least one timing plan;
acquiring vehicle trajectory data from a first datastore, the vehicle trajectory data archived over a sampling period of time;
acquiring MAP data that defines detailed geometries of the subject intersection;
filtering the acquired vehicle trajectory data to form a trajectory dataset of vehicle journeys near the subject intersection;
applying clock drift adjustments to a date/time stamps of the vehicle trajectory data to form a corrected trajectory dataset;
analyzing the vehicle journeys based on the MAP data to identify stopline crossings at the subject intersection during the sampling period; and
determining, based at least in part on the stopline crossings and the MAP data, a first timing plan of the subject intersection.