Gm Global Technolgoy Operations, Inc.

University of Michigan

Xingmin Wang

Fan Bai

Vivek Vijaya Kumar

Shengyin Shen

Zihao Wang

Zachary Jerome

Henry Xianghong Liu

A system for optimizing traffic signal timing using telemetry includes: wirelessly connected devices (WCDs), traffic operations centers (TOCs) controlling one or more traffic signals, and control modules storing and continuously executing control logic in a closed loop. The control logic continuously receives real-time WCD telemetry data and performs real-time processing of the telemetry data to match the telemetry data to physical locations. Processed telemetry data is aggregated to determine WCD trajectories. The system selectively performs time-of-day (TOD), offset, and green split optimizations, and receives the WCD trajectories and outputs of the TOD, offset, and green split optimization within an API. The system generates an optimized signal plan from data from the API, and verifies the optimized signal plan. The optimized signal plan is received by the TOCs and selectively uploaded to the traffic signals. The optimized signal plan increases throughput of traffic by decreasing total delays, and quantities of stops.

Optimizing traffic signal timing using vehicle telemetry data

Growing community of inventors

Ann Arbor, MI, United States of America

Xingmin Wang