A Study Of Organization Technology For Separating Trucks From Passenger Vehicles On Expressway In Mountainous City

The road system of separating trucks from passenger vehicles refers to the road system that separates the passenger flow and freight flow into two independent vehicle flows through the way of lane separation on the road,so that the passenger and freight cars running on the road will not interfere with each other.As the separation of passenger and freight road system has obvious advantages over the mixed traffic road system in terms of traffic efficiency,traffic safety and road construction and maintenance,it has become a research hotspot in the field of transportation.In this paper,through collecting the research status at home and abroad,the author puts forward the research on separating trucks from passenger vehicles organization technology of Expressway in mountain cities;based on the characteristics of spatial structure and road network in mountain cities,the author summarizes the driving characteristics of passenger and freight vehicles under different road lines.In this paper,through quantitative analysis method,the influence degree of freight cars on drivers under different linear conditions of Expressway in mountainous cities is analyzed.The influence degree of freight cars on drivers in curve,curve,downhill and uphill sections is great.Based on the driving difference of passenger and freight cars and the influence degree of freight cars,the conditions of traffic conditions,vehicle composition conditions,road lane conditions and road linear conditions are put forward Based on the vehicle size,performance difference,psychological safety pressure and road maintenance conditions,combined with the road characteristics of mountain cities,the classification standard of separating trucks from passenger vehicles vehicles in mountain cities is proposed;according to the driving characteristics of road vehicles in mountain cities,the data acquisition method of VISSIM simulation model is established.According to the traffic efficiency,road safety and economic benefits,this paper scientifically selects the evaluation index system,and based on the shortcomings of the traditional AHP,puts forward the evaluation method of separating trucks from passenger vehicles Organization selection of triangular FAHP method.Taking a typical section of Chongqing Expressway as an example,this paper obtains the optimal separating trucks from passenger vehicles organization method,and tests the effectiveness of the triangular FAHP method.The research method used in this paper is also applicable to the selection and evaluation of separating trucks from passenger vehicles organizations in other mountain cities.Combined with more specific road survey data,more accurate organization scheme results can be obtained,which has more reference value for the traffic control of separating trucks from passenger vehicles in mountain cities in China.