Research On Hazardous Materials Road Transportation Routing

With the rapid growth of the production and transportation of hazardous materials, the number of hazardous materials accidents is growing. The hazardous materials accidents have not only brought transport disasters, more importantly, the result could be enormous number of injuries and deaths, economic losses and environmental damage and other consequences. Choosing a safer transportation route of hazardous materials is one of the effective measures to reduce the risks and consequences of accidents.Optimal routing is an important part of the hazardous materials road transportation research. Optimal routing of hazardous materials is different from those general optimal routing processes. Hazardous materials optimal routing need to take into account the risk of path, the possible consequences of the accident and emergency response capabilities around the path and other factors.This paper includes two aspects of research, one is the risk analysis of hazardous materials road transportation, the other is optimal routing based on risk assessment.First, this paper studied the results of previous studies and the condition of hazardous materials transportation in today's China; put forward improved risk analysis models which are more reasonable and accurate, including the accident risk model, the influence range model and the environmental destruction model. Calculation results using historical data show that the improved models are more accurate and reasonable, and at the same time the new models also put forward higher requirements to the information gathering of hazardous materials transportation;Based on the risk analysis of hazardous materials road transportation, this paper researched several aspects of optimal routing. First we generalized the procedures and considerations of optimal routing. Second we adopted the principle used in HSE management system to improve the optimal routing process, which is to regard the emergency response capability as a quantitative factor of the optimal routing index, and then established a new hazardous materials road transportation optimal routing index system based on"prior prevention and rescue after". Third we analysed the models and algorithms commonly used in optimal routing, and established multi-objective optimal routing models using the Fuzzy Neural Network and Analytic Hierarchy Process.Finally, we did a case study of butadiene road transportation in Guangzhou, made a quantitative assessment of the leakage rate, casualty risks and environmental damage risks of butadiene transportation. We carried on single-objective optimal routing simulations including shortest time, least casualty, minimal environmental damage and best emergency capability, analyzed the differences of different routing results. Finally we realized the multi-objective optimal routing based on the Fuzzy Neural Network and Analytic Hierarchy Process by adopting ArcGIS platform, ALOHA simulation software and MATLAB software, and put forward some suggestions on the topic of hazardous materials route optimization, path line banning policy and construction of emergency response facilities.