Identification Technology And Application Of Urban Road Network Traffic Situation Based On RFID Data

With the large amount of investment in the collection,transmission and integration of traffic data in the city,this paper analyzes and excavates the rich information and rules contained in the massive traffic data,and realizes the effective investigation of the traffic status of the city.The provision of scientific and quantitative traffic data support and decision-making basis has gradually become an important research area in the field of intelligent transportation.This article has certain characteristics in the following aspects: This paper uses traffic flow theory,software engineering,Baidu map API and large data processing technology,and presents a new algorithm based on time and space stratification model for traffic situation discrimination,which is combined with Chongqing RFID data and applied in Ranjiaba area of Yubei District of Chongqing Municipality from the point that in-depth analyzes the traffic situation and the inherent relationship between the intersection and the road,which is main elements of the road section.First of all,the thesis constructs the index system of road traffic situation,focuses on analyzing the relationship between the two main factors of road network intersection and traffic situation,and studies the traffic situation system based on the level of traffic at the intersection and the traffic situation based on traffic congestion.Secondly,based on the characteristics of Chongqing road network and the characteristics of RFID data,this paper stratifis all the intersections in the road network according to certain time and space characteristics by means of cluster analysis.Based on this,In addition,the detailed algorithm calculation steps are given,and the calculation process is illustrated by an example.The calculation method of road traffic situation is based on the time and space stratification model.Finally,using the technology of software engineering,database management and large data processing,this paper makes use of the existing data of Chongqing RFID and the amount of traffic survey to supplement the data.This paper points out the traffic situation of road network based on space-time stratification model.The method is applied to the Ranjiaba area in Yubei District of Chongqing Municipality.All the parameters are extracted and the key step operations are based on the Java language.The results show that the proposed method based on road network reachability and connectivity is based on the time and space stratification model,which can not only provide the traffic management department Micro-traffic parameters,and can provide a macro area of the road network traffic situation,to meet the static and dynamic data needs,with a certain degree of practical engineering application value.