A traffic signal smoothing and fast transition algorithm considering constraint adjacent period variation

Abstract

It briefly introduces the research status of domestic and foreign traffic signal transition, and summarizes the characteristics of these algorithms. Based on the judgment that the time difference between the previous and last two cycles does not exceed a certain limit, and the adjustment time is the key parameter, the smooth transition and rapid transition are combined and unified, and a traffic signal smoothing and Fast transition algorithm. The results show that the algorithm can quickly coordinate the transition before and after the transition within a few minutes by adjusting the cycle difference constraint range. When the cycle difference restriction range is larger, the adjustment speed is faster, the required time is shorter, the smoothing effect is worse, and the transition quality is lower; when the cycle difference restriction range is smaller, the adjustment speed is slower and the required time is longer , The better the smoothing effect, the higher the transition quality. Since this algorithm takes into account the influence of different timing schemes before and after the transition on the transition timing, when the timing scheme changes before and after the transition is obvious, the fast coordinated transition effect performed by this algorithm is more obvious.