第1个回答 2015-04-17
Road safety refers to the process of transportation activities, personal injury or property damage can at an acceptable level of state control. The possibility of a person or thing traffic safety means losses are acceptable; if this possibility is above the acceptable level, namely unsafe. Road transport system as a dynamic open system, which restricts its security system by both internal factors, but also interfere with the system by the external environment, and is closely related to people, vehicles and road conditions and other factors. Any factor within the system is not reliable, unbalanced, unstable, may lead to conflicts and contradictions, produce unsafe or unsafe condition.本回答被网友采纳