关键词: 交通运输工程, 危险货物运输, 高速公路, 人员暴露风险, 实时评价

Abstract: For more accurate real-time assessment of exposure risks of road transportation personnel of dangerous goods, a real-time evaluation model of exposure risks of highway transportation personnel of dangerous goods was proposed, which was based on the risk evaluation content, the vehicle speed and road information parameters collected by GPS vehicle monitoring system. The functional relationship between the average vehicle speed and the traffic density and the exposure of personnel in high-speed service area was focused when the dangerous goods were in highway transportation. The personnel exposure on roads and at densely populated areas was assessed in real time, and the correction of vehicle type to average speed was considered. The transportation risks were assessed by case study when vehicles were under different speed conditions and passing the service area. Results show that vehicle speed and population density exert significant effects on transportation personnel exposure risks. The proposed model can further decompose risk indicators and improve the accuracy of risk assessment, meanwhile, it can evaluate the dynamic risk of transportation in real time, which has practical significance to assist the intelligent supervision of dangerous goods transportation risk and reduce the transportation risk.

Key words: traffic and transportation engineering, hazardous material transport, highway, personnel exposed risk, real-time assessing