Study On Traffic Detection And Control Strategy

With the modern society inereasingly dependent on transportation,traffic control system has been gaining widespread attention.And the use of advanced information technology,comrnunications technology and control technology will greatly inerease the efficiency of the transport network. It becomes one of the most effective and economy ways in solving the traffic congestion problems.In view of current intersection traffic control signals,a fuzzy controll method that is used to control traffic signals in due course the length of the phase and phase timing, has been presented in this dissertation.By this control method, it completes the development of a single intersection traffic signal fuzzy controller. In this paper, The following task has been completed:1) Designing a four-phase single intersection traffic signal fuzzy controller and presenting a multi-phase fuzzy control method to determine the signal of alternating with a current phase and the other phase of the traffic flow, and making this multi-dimensional fuzzy controller In the VC++, software implementation. At the same time , a single intersection traffic flow model is proposed to reflect the light traffic and heavy traffic and describe the queue length. Finally, the feasibility and superiority of the control method is checked.2) The hardware realization and the software program with AT89C51 chip microcomputer are given.3) In the end, summarizing the whole work and pointing out some content which wound be researched in the future. And make a detailed introduction with the various parts of the circuit.Traffic signal control machine is infrastruetore in the transport systerm. Its intelligent has important and basic significance for the realization of traffic control, intelligent management system upgrade, and it can better improves traffic order ,increases the existing capacity of transportation faeilities and reduces traffic accidents.