Evaluation Of Multiple Driving Paths Recognition Station Layout Of Highway

With the cancellation of provincial toll stations and the reform of expressway toll system,the core problem of expressway network toll becomes how to identify the accurate driving path of vehicles.In order to achieve the purpose of accurate identification of the path and accurate charging,the multiple driving paths identification station is set up in the high-speed road network to identify the vehicle driving information.The reasonable layout of the sign station affects the efficient work of the high-speed toll system.In order to achieve the goal of "economic,reasonable and efficient" of the layout scheme of the sign station in the high-speed road network and protect the interests of all parties as much as possible,this thesis carries out the research on the evaluation of the layout scheme of the sign station on the expressway,and puts forward the evaluation method of the layout scheme of the sign station based on ewm-topsis method.In addition,if the vehicle information is lost,it will lead to the problem that the vehicle toll cannot be accurately collected and split.Therefore,this thesis proposes a vehicle path reconstruction method based on travel time characteristics,and applies the reconstructed trajectory to evaluate the layout scheme of sign station.Firstly,this thesis proposes a vehicle path reconstruction method based on travel time characteristics.The topological structure of expressway network is constructed by Space L modeling method.Based on the principle of minimum flow and the theory of residual set,the initial layout scheme of ambiguous path identification station is determined.Aiming at the scene of missing vehicle trajectory in the scheme,combined with the actual road information,the possible paths with the same origin and destination as the missing trajectory are found to obtain the alternative path set.The tolerable distance boundary method is established to screen the possible paths that meet the conditions in the alternative path set and construct the restored path set.This thesis analyzes the travel time characteristics of the possible paths in the reduction path set,and uses the idea of probability theory to find the optimal possible path,so as to restore the vehicle driving path more truly.Secondly,this thesis puts forward the evaluation method of sign station layout scheme based on EWM-TOPSIS method.This thesis expounds the principle of index system construction,analyzes various influencing factors(accuracy and fuzziness)of layout scheme,defines the track recognition rate and track reconstruction accuracy rate of road network,innovatively applies the track reconstruction method to scheme evaluation,verifies the necessity of evaluation index selection,and determines the equipment cost,equipment cost and technical conditions from two aspects of economic cost and technical conditions The evaluation index system is constructed by five decision-making indexes: installation cost,maintenance cost,road network trajectory recognition rate and trajectory reconstruction accuracy.The EWM and TOPSIS algorithm are deeply integrated,and EWM-TOPSIS model is constructed.EWM method is used to calculate the weight of decision index,and TOPSIS algorithm is introduced to sort the alternatives,and the optimal layout scheme of sign station is selected.Finally,a case study based on numerical simulation is carried out.Using MATLAB software for numerical simulation,based on the simple repetitive and fully distributed layout mode of sign station,combined with the vehicle path reconstruction method based on travel time characteristics and the evaluation method of sign station layout scheme based on ewm-topsis method,the quantitative analysis of sign station layout schemes is completed,and the best layout scheme and layout mode are selected.