Discussion on Construction of Control System of Environmental Risk Source for Expressway Transportation Accidents of Dangerous Chemicals in Water Environmental Sensitive Areas

Based on the analysis of the environmental risk characteristics of freeway dangerous chemicals transportation accidents, the environmental risk source control system, which combined the initiative prevention system and passive protection system, are proposed, and the relative subsystems are also elaborated in this article. The risk sources information transfer subsystem is composed by the security regulation platform of regional dangerous goods transportation and highway monitoring and communication system, and the function of the subsystem is transferring the public information between the highway and regional dangerous goods transportation security supervisory. Environmental risk sources prevention subsystem is comprised by the main engineering structures and traffic safety facilities, and the services of environmental accident risk defending platform, which composed by the runoff gathering facilities and reservoir.