Offset optimization to maximize green-time overlap considering a platoon for network signal control

Abstract

In order to solve the congestion problems in urban road network, we would like to propose an algorithm to optimize offset value of each intersection by considering boundary conditions of offset values at adjacent intersections and platoons. A proposed algorithm maximizes the overlap of green-time among adjacent intersections where traveling time of each link should be considered to estimate the green-time overlap and to predict platoons. Traffic simulations were performed using VISSIM, and the proposed algorithm was proved to improve the traffic efficiency. In this paper, simulations were done in the conditions of under-saturated traffics.