Traffic incident situation evaluation based on road network reliability of invulnerability

To comprehend and evaluate the severity of traffic incident situations, an unconventional traffic management strategy should measure and calculate the severity of incident situations. This paper presents a freeway network traffic incident situation evaluation model by introducing the invulnerability concept in the complex network theory and perceiving the topological structure of a road network with the help of traffic incident situations. A case analysis was conducted for the invulnerability of a regional freeway network subsystem and the overall network. The model provides a solution for incident situation comprehension from the road network structure point of view.