关键词: 城市交通, 拥堵缓解, 车辆减排, 潜在交通需求, 交通管理策略

Abstract:

Traffic congestion mitigation can release the induced travel demand; the net benefits of vehicle emissions reduction are closely related with the traffic congestion level. A methodological framework to evaluate the benefits of traffic congestion mitigation on vehicles emissions reduction is established based on the concept of elasticity with considering the induced travel demand. Results show that the net benefits of vehicles emissions reduction depend on the balance of induced travel demand and one vehicle emissions reduction efficiency; and to the different pollutants, the net benefits of vehicles emissions reduction present different features. Furthermore, the vehicle license auction system in Shanghai is analyzed, as well as the rapid process of motorization in China. In the end, the influence of traffic management strategies to vehicles emissions reduction is analyzed. Findings can provide a methodological framework to evaluate the benefits of traffic congestion mitigation on vehicles emissions reduction with significant theoretical and practical purpose.

Key words: urban traffic, congestion mitigation, emissions reduction, induced travel demand, traffic management strategies