Real-Time High-Resolution Data Logging and Performance Monitoring Device for Signalized Intersections

Real-time monitoring of traffic signal system operations can be accomplished through the central or closed loop software that communicates with the traffic signal controllers in the field. However, there are a few significant limitations with this approach. This paper presents an alternative approach to improve real-time monitoring of signalized intersections operations using instrumentation at each signalized intersection cabinet. An intelligent data acquisition device has been developed to provide real-time high-resolution data logging and performance monitoring for signalized intersections. The device was tested and validated in the lab using a hardware-in-the-loop simulation model. The simulation data were collected from an isolated intersection in the city of Moscow, Idaho.