Research and Application Analysis of Traffic Lightcontrol System

Traffic light is an important tool to manage urban traffic. In recent years, the influence of traffic light on road traffic flow has attracted extensive attention of scholars. At present, most of the traffic light time is pre-set, the so-called static, or non-dynamic timing. No matter the traffic peak or trough, the time and interval of the traffic light are fixed, obviously, under the guidance of such a timing strategy, the traffic flow cannot play a reasonable role in traffic guidance, and the traffic flow cannot improve the efficiency of the vehicle but cause unnecessary delays. To solve this problem, this paper introduces three kinds of applications, namely emergency vehicle priority system, pedestrian crossing system and intelligent traffic light control system, and gives three kinds of implementation schemes in each application. This paper analyzes the implementation methods and principles of various methods, compares the advantages and disadvantages of the methods, and gives the suggestions of future development direction and optimization direction.