Study on Evaluation Models of Highway Safety Based on Catastrophe Theory

Table 1

Safety evaluations on first-class highways in China at different levels.

Evaluation level	Evaluation scope	Primary objective
Macrolevel	The entire highway	Understand the overall safety of the entire highway
Mesolevel	Road sections	Understand the safety of road sections and identify dangerous road sections for further in-depth analysis
Microlevel	Certain facility and road spot	Find out safety issues of the specific locations/traffic facilities and provide countermeasures