With the rapid development of urbanization and motorization, the traffic
congestion problem in major cities in China is becoming more and more serious,
and optimizing intersections plays an extremely important role in alleviating urban
traffic congestion. In this study, the mathematical model of traffic forecast at the target
intersection is constructed by using the big data of vehicle trajectory. The research
results of this project can be directly applied to control measures such as signal
timing optimization at intersections, optimization and adjustment of variable lanes
at intersections, etc., so as to improve the traffic capacity of intersections and alleviate
urban traffic congestion.