基于环境风险评价的危险品道路运输优化选线.PDFVIP

2014,34(1) 266~272 China Environmental Science * , , (,, 210023) ,,. :;; ALOHA GIS ;. ,GIS ,.,14.12, ,. X820.4 A 2014 Route optimization for hazardous materials transportation based on environmental risk assessmentA case of * Zhangjiagang. XIA Qiu, QIAN Yu , LIU Mengfei (State Key Laboratory of Pollution Control and Resources Reuse, School of the Environment, Nanjing University, Nanjing 210023, China). China Environmental Science, 2014,34(1) 266~272 Abstract Zhangjiagang City, with enormous petrochemical industries, boasts the bonded area which is the only one of its kind in the inlandrivertype ports in China. With respect to the hazardous materials (HAZMATs) transportation on urban and suburban road network, there is an urgent need to improve the way the trucks carrying HAZMATs. One of the key measures to solve the problem is the environmentalriskassessmentbased route optimization. Therefore, analysis on risks was made in detail when a release occurs during the transportation: distribution of HAZMATs road transportation was identified; accident probability modification coefficient was introduced to revise the basic release probability; ALOHA model was applied to simulate accident scenarios, Geographical Information System (GIS) was employed to calculate the threat zone accurately; and exposed population and polluted environment were both taken into account. Subsequently, a risk assessment model was put forward and recognized as the evaluation criteria for route optimization. Last but not least, the proposed approach was demonstrated on the road network platform and network analysis module was processed. Results showed that the optimal route of all possible goals was calculated, whose risk index was 14.12