中文摘要：

为了选择风险尽量小的线路来运输有害物品，减小在运输此类物质时对道路两侧人口带来的风险，通过比较分析，在选择Gaussian模型基础上，将有害物品泄漏后果的概率函数法与人口的风险描述方法相结合，并根据运输中对风险标准的不同要求，结合实际运输过程中可供选择的不同线路的实际情况，得到一次运输中选择不同线路时所产生的相异风险值，从而为有害物品运输中如何通过最小化运输过程中的人口风险来选择线路提供了依据。通过算例分析，得到的结果与使用其它分析性工具得到的结论一致，但结果精确性更高，表明研究结果有很好的实用性，能对实际生产中避免因有害物品运输而带来重大事故有一定指导作用。

英文摘要：

To select a perfect routing of least risk to transport hazardous material and minimize the risk to the population along both sides of transport routing, through comparafive analysis, and based on Gaussian Model, a combination of probability function technique and population risk description technique is introduced. Then risk values of every routing for selection and their differences in-between are calculated. In this way, the criteria for routing selection with minimum population risk during transportation process are provided. The calculated result complies with the conclttsion obtained from other analytical tools; however, its precision is much higher. It indicates that the result of this research is of good practicability, and could provide guidance in selecting a perfect routing and preventing severe accident during transporting hazardous material.