Fully Adaptive Detection-Control System for Isolated Intersections (0-6029-S)

This project developed modules to improve efficiency not only at traffic signals with detection-control systems but also at typical fully actuated signalized intersections. Researchers developed models to predict the maximum initial value for single-lane and two-lane approaches. The variable initial module determines the appropriate maximum initial value (minimum green) when stop-bar detectors are not available. The module can improve intersection efficiency in real time by considering many factors including the utilization of the left-turn phase. The detector failure module is applicable during detector failures at an intersection. Using this module can significantly improve intersection efficiency until the detector failure is rectified. Both these modules require data that are currently available in signal controllers, making their incorporation into the signal controller firmware very feasible.