Research Of Working Vehicle's Operation Plan Optimization In Urban Road Network Based On PARAMICS

With the development of urban transportation and the continuous improvement of road infrastructure,urban road work(maintenance,cleaning,dust suppression)has become a necessary part of urban road maintenance,which not only helps beautify the road environment,but also helps improve driving condition and traffic safety.However,the working vehicle has its own driving characteristics that determined by road operating attribute,,such as maintaining uniform and not change the lane at random as much as possible in order to be able to complete high-quality tasks.Therefore,the research of impact mechanism on road caused by working vehicle' operation will contribute to optimize the operation plan.It will be of great importance to reduce the impact of working vehicles on the road network and improve the city road operations of scientific,safe,efficient,green.Firstly,this paper summarizes the domestic and foreign related research of urban road operations,focusing on research methods and models of road operating area,road operation's effect and operation strategies,which provides an important reference and inspiration for the study of this article.At the same time,the main content and technical route of this paper are expounded.Secondly,relying on the API interface and its function library of PARAMICS simulation software,write the control program of the study on the road impact of the work vehicle,create different functions' control plugs,load them into the road network model,which realizes the control of the working vehicle and the index evaluation of collecting and processing.Furthermore,the influence of the working vehicle on road section and intersection is studied deeply.Acquiring the impact of other vehicles at intersections and intersections on the delays and safety by working vehicle's operation through the modeling and simulation of the different operating environment in road section and intersection.Analyzing the change of the working vehicle's operation status(working speed,operating lane,traffic volume,split,working speed;traffic volume)for the variation rule of influence on other vehicles at the road(delay,safety risk)and the intersection(delay).Then explaining the impact mechanism between the working vehicle's operation and its influence,and makes a detailed study on the optimization of the operation plan of the urban road vehicle.And on the basis of this,deeply carry out the optimization of vehicle's operation plan on urban road.Finally,based on the working vehicle' study of the influence on road section and intersection,this paper puts forward the working vehicle' operation plan optimization model to design and optimize working vehicle' operation plan by using the regression analysis method and the linear programming model.In addition,from the view of operation full path of the working vehicle,the full path influence analysis mode of working vehicle is established,which could verify the estimated impact by the working vehicle' operation plan optimization model.In the end,through the study of concrete examples,it shows the feasibility of the optimization method for the operation optimization based on the research of influence mechanism on other vehicles at road and intersection caused by working vehicle.It provides the corresponding theory and technology for formulating a scientific,reasonable,efficient,green operating plan.