Study On Safety Management In Freeway Work Zone By DSRC

The features of freeway work zone include traffic chaos, management stiffness andsection function unclear. There are too much traffic volume in freeway. Traffic incidentsfrequent happen in work zone. But freeway Infrastructure large-scale construction has beencompleted, maintenance of work zone will be more and more. Therefore, by reasonable anddynamic management tools help improve the work zone’s capacity, but also has importantsignificance for work zone security.The abbreviation of DSRC is Dedicated Short Range Communications. It refers to thededicated short-range communications technology. Starting research the practicalapplication of DSRC technology in the work zone, and summarize the results of previousresearch. Section the work zone, and explore DSRC technology adaptability in work zone.On the research of detection technology base on DSRC, analysis information needs of workzone management. Determine the dynamic detect information in detection zone. Comparedwith the existing traffic detection technology, selection wave frequency detector to detect.Then emplaced detector base on data transmission and detection range demand. Analysisbase of DSRC-DSRC agreement, provides the basis for the design of DSRC datatransmission. Projected braking efficiency in different adhesion coefficient base on vehiclebraking stability. Count the value of speed limit and distance limit in15km/h speeddifference in secure distance. Through using variable information sign for dynamicmanagement in the warning area. Calculation location of variable information sign basedon driver’s visual recognition process.The results provides a scientific method and basis for work zone management，and hasimportant significance to improve traffic safety and efficiency of work zone trafficoperation, but also provides ideas for the future work zone management.