基于动态分配的城市中心商业区交通诱导研究

s the city's economic and cultural center, the urban Central Commercial Districts(CCDs) are rapidly developing, which always brings the heavy traffic jam in the city. In this paper, the traffic flow of CCDs was analyzed, and the traffic flow guidance evaluation model was established. Firstly, according to the route selection probability based on the overall travel cost function, traffic flow is allocated to the road network of the CCDs by the dynamic assignment model, and the heavy-traffic roads are identified. Then, traffic flow guidance measures are given, and the evaluation model above is applied to select the optimal measure. Finally, with VISSIM simulation software, the model was applied to the Tianjin Binjiangdao CCD, which illustrated that the satisfied guidance measure can be selected effectively.