Design Of Highway Tunnel Traffic Guidance Simulation Platform

With the constantly increase of mountainous highway construction investment of the Midwest in our country, and along with the constantly innovation of project construction technology, especially the tunnel engineering of highway become more and more in the whole highway construction, among them the proportion is raised notably in long tunnel over 1000 meters and extra-long runnel over 3000 meters. Because the characteristics of highway tunnel that its own space environment of highway tunnel is narrow, the light changes greatly, the air quality is abominable, all these make frequent accidents happening in highway tunnel. In recent years, it has already become the focus that how to improve the driving environment and how to enhance the accident rescue and traffic guidance control in highway tunnel .Relatively mature traffic guidance control plan is compiled aiming at long tunnel and extra-long tunnel. In order to reduce the influence to normal traffic flow when these plans are actually put into practice, and in order to help the operation managers familiar with all kinds of traffic guidance control plans, it is very necessary to build a highway tunnel guidance control simulation platform which used to simulate kinds of traffic guidance control plans.The thesis starts with the analysis on current situation of traffic guidance in home and abroad. Then focus on a typically double tunnel four lanes and two transverse traffic tubes, analyzing existing highway tunnel guidance control equipments, modes, and strategies. And then design the general function structure of highway tunnel guidance control simulation platform, after then propose master-slave distributed control hardware structure of the simulation platform which is combined by host computer, host mcu and slave mcu. C language is selected to compile and debug the control software of host mcu and slave mcu in Keil environment, which belongs to MCS-51 series mcu development software. This thesis also chooses Visual C++ to compile the control software of host computer. In this design, the mcu the host mcu is used to judge the place where the traffic incidents happened, and control the choice of traffic guidance situation, finally realize the linkage control of lane indicator and cross tunnel gate in highway tunnel model. The modular design makes both software and hardware good in scalability and portability. At last, this thesis uses EDA toolbox Proteus to simulate the whole highway tunnel traffic guidance simulation platform, simulation results show kinds of presupposition function.