Study On Multi-objective Path Optimization Of Road Transportation Of Dangerous Goods

With the further implementation of China's "13th Five-Year" plan,the economy has maintained rapid growth.The demand of freight transportation,as the "derived demand" of commodity trade,is also increasing.Among them,the volume of goods transported by road transport in the total volume of goods in a large proportion,and the future development momentum is still strong,swift and violent,there is still much room for growth.At the same time,dangerous goods transport accidents occur frequently,once the accident,the consequences are serious,huge impact.The path optimization of dangerous goods road transportation can not only reduce the transportation risk,but also reduce the transportation cost and time,which is an effective way to reduce the risk of dangerous goods.Therefore,it is of great practical significance to optimize the path of dangerous goods transportation.This dissertation introduces the research actuality of the route optimization of dangerous goods,expounds the road transport of dangerous goods,path risk and path optimization of related concepts,and gives the basic procedures and steps of dangerous goods road transport path optimization.This paper systematically analyzes the risk factors of road transportation of dangerous goods,and establishes the index system of risk assessment.On this basis,based on the risk of dangerous goods transport,three indexes of transportation cost and transportation time road transport multi-objective optimization model,and determine the weights of three indexes by using expert scoring method,the model was solved by Dijkstra algorithm with MATLAB.Finally,the transportation of dangerous goods task of the Tianjin EY company from Xiqing District of Tianjin city to Cangzhou city of Hebei Province were analyzed by path optimization model to obtain the optimal path.It proved the rationality and algorithm feasibility of the model through the analysis and calculation of algorithm example.