| In recent years,with the rapid development of the social economy and the accelerated process of urbanization,the problem of road traffic,especially the problem of "travel difficulty" has gradually emerged,which greatly affects the scientific and sustainable development of the city.In this context,the real-time collection of urban road traffic information has been explored.It can collect road network in real time and feed back to improve the use of road,reduce congestion and environmental pollution.This article mainly includes the following aspects:The design idea of the 1.city road traffic information real-time acquisition system is to use a variety of traffic information collection techniques to collect the dynamic traffic data of the key sections of the city,and then send the real-time traffic information to the public through the guidance screen,the traffic broadcasting network and the INTERNET.2.system function design,through the floating vehicles with positioning functions,such as buses,taxis,to collect relevant position,speed and other information,and then according to the speed and congestion,combined with the map,to the users to describe the traffic situation intuitively.Deep analysis and excavation of data will provide a factual basis for road planning and traffic facilities construction.3.system interface design,in order to ensure the current data source system and traffic application system status,it should also take full account of the development of the system,so as to facilitate the expansion of the system and its own maintenance work.4.the traffic information fusion model is designed to relate the data obtained from a single and multiple information source to accurately obtain location information and to carry out comprehensive evaluation feedback.5.the key algorithm design,through the traffic information collection,processing and fusion software obtained by the standard traffic data(GPS data andtraffic data),combined with urban road map,calculation of road traffic congestion or travel time of road information,and output to a certain format of information files,in order to supply one.Road information processing and traffic information release. |
