Research On Urban Intersection Traffic Safety Warning Model Based On Car Road Collaboration

Urbanization is a sign of social progress, it’s also a sign of the development of socialcivilization. In recent years，science and technology developed rapidly, economy andurbanization also acceleratedly developed. With the accelerated process of urbanization, awide range of traffic problems come from one another. Urban road intersections is animportant part of the urban road traffic system, motor vehicles, non-motor vehicles andpedestrians gather here from all directions of the city, and then through the intersection tochange the traveling direction, for this reason, the traffic situation of the intersection becomescomplex and changing, makes the intersection become traffic accident-prone area of the urbanroad. According to relevant statistics, about more than half of the traffic accident occurred atthe intersection in the city. Intersection traffic safety problem has become a serious problemthat cannot be ignored, therefore it is necessary to study the intersection traffic safety situation,we can predict the development of the traffic accidents in intersection in advance byanalyzing its security situation. Develop appropriate disposal plan for the predicted results,which is based on the traffic safety forecast, the traffic safety warning of the intersection canbe realized.ITS can make the effective use of the existing transportation infrastructure, so that thetraffic flow can effectively be distributed in time and space. Using ITS can reduce trafficaccidents, ease traffic congestion, shorten the travel time, reduce traffic pollution and improveurban transportation management level. The car road cooperative technology is a veryimportant part of the Intelligent Transportation Systems, its basic idea is that by the use ofmulti-disciplinary integration, make use of a variety of state-of-the-art technology of sensorwireless networks, computer information technology and wireless communication technology,so that achieve coordinated development of the human, vehicles, roads and the mutual smartperception.Domestic and international urban road traffic safety related theories firstly be researched,and then the description of the forecast is the basis for early precaution is be explained, whichis based on the research of precaution theory. And make the urban road intersections as theresearch target to study the status of the intersection’s traffic safety, get a conclusion that thepedestrians, left turning vehicles, the type of control, traffic and other factors have a greaterimpact for intersection traffic safety conditions, build the intersection traffic safety warningindicator system. The key core technology of the car road cooperative technology is beresearched, the model which is built in this paper be determined as data prediction modelwhich is belonged to the traffic information processing module internal of the car roadcooperative system. Construct the early warning model that based on the car road cooperative technology, and the input and output parameters of the model then be determined, evaluationindex which is used to analysis the reasonableness of the model and accuracy of theprediction results. Do the model simulation experiment which is combined with calculatingexamples, do the comparative analysis of the simulation experiment results. The calculatingresults show that the model which is built in this paper has higher accuracy than thetraditional model, by calculating evaluation index such as the model correlation coefficient,that the model be built in the paper can be used as the warning model which is based on thecondition of the car road cooperative technology.