Development and Application of a Simulator for Evaluation of Delay Time Feedback Traffic Signal Control Using Probe Data

Abstract

In this study, we constructed a simulation evaluation system for delay-time feedback traffic signal control using probe data with a traffic simulator, a signal control framework, a probe emulator, and a signal control emulator. First, the OD traffic volume and saturation flow rates were set from the video observation data at Komazawa Street, and it was confirmed that the average travel time RMSE per minute from 6:50 to 9:30 by the traffic simulator was 53.3 seconds. Next, we formulated and coded an algorithm for estimating and updating the coefficient value of the average delay calculation model from the signal control parameters using the Kalman filter. It was confirmed that a certain level of accuracy was maintained in accordance with changes in traffic conditions, such as blocking-back. Furthermore, based on the coefficient value of the average delay calculation model, an algorithm was formulated to optimize the signal control parameters according to fluctuations in traffic conditions.