Study on the Relationship of Traffic Flow Complexity and Traffic Conflict on Urban Road

In order to quantitatively describe the complexity of the traffic flow system, this paper analyzes the traffic flow complexity on a road based on introducing statistical complexity and its properties. Taking traffic flow on three typical road sections in Nanjing, by comparing and analyzing the relationship between traffic flow complexity and traffic conflict rate on different sections, the paper draws out the regression model of traffic flow complexity and traffic conflict rate. The results show that: The characteristic complexity is an effective measure of the random and non-linear systems and the relevance between traffic flow complexity and non-serious traffic conflict rate is better enough to measure and analyze the traffic flow complexity, which brings a new idea in studying the complexity of traffic system.