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.
The paper is based on the HCM's left-turn particular road, and the special channel passage capability model. The head timetable and operational characteristics of the left turn and the head vehicle are analyzed. Taking the main road of Jinan City, the traffic flow of Ten Road has been studied the influencing factors of the proportion of different traffic flow ratios of left-turn vehicles and lanes, and the linear regression method determines the difference between the head, and establishes the relevant calculation model. Combined with the turning head adjustment factor, study the influence factor of the power out of the vehicle and the vehicle traffic flow, and established the traffic capacity calculation model of the intersection of left and turned to the turning lane.
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