Research On The Fusion Method Of Traffic Flow Data On Expressway

As traffic congestion becomes widespread problem in major cities and regional road network,it has gradually been a focal problem what methods the traffic managers use to carry on the traffic organization and scientific management,ease traffic congestion.Computer,automation and communication technology has been gradually applied in the traffic field,to carry on the traffic data collection and transmission through the sensors,but transportation application problem for a variety of sensor data in the field has been the focus of the study.With the development of intelligent transportation system,the urban traffic flow detection methods become rich,how to make full use of sensor information has gradually become the focal issue of research.Getting effective information for sensor using led the data fusion techniques applied in traffic field,and it can effectively solve the diversity of information and the problem of information redundancy.Through the study of traffic information fusion,we can get the more effective information.But the use of data from different sensors brings a series of problems,first of all,the data from various systems is poorly interactive;And,due to the detection principle and detection equipment performance,even for the same set of traffic flow parameters caused by using different methods for testing will also get different results;At the same time,the lack of effective means of technical analysis of the data on deep mining makes a lot of important value information neglected and ignored.So this paper proposes a multi-source traffic information fusion technology.The technology makes multi-source traffic information data effectively organized and fully excavate its useful information.We can use the information analyze traffic characteristics and fully play the overall efficiency of the urban traffic network.It can also provide the basis for scientific,intelligent traffic organization and management.Thirdly,major emergencies presented a detailed regional demand for railway traffic,transport sequences,transport pathways,the locations of loading and unloading,and other needs of the national economy in military railway transportation.And based on the railway route capacity constraints and certain military,the minimum time operation under conditions of share-cost flow model is established.The form of constructing the railway network map,objectives and constraints of the optimization model do specifically addressed.