交通需要の不確実性による時間信頼性指標を用いた道路整備評価に関する研究 A study on the road construction evaluation with travel time reliability by uncertainty of traffic demand
Travel times or flows on road networks fluctuate daily. One of the main causes of the network flow fluctuation is due to travel demand fluctuation. Road construction results do not only reduce travel time on the network, but also improve the travel time reliability. Therefore, we should consider the travel time reliability when evaluating road construction. In this study, we propose an evaluation method of road construction considering the travel time reliability of the network. In the method, a semi-dynamic equilibrium model is adopted, and is modified to consider the travel time uncertainty which results from travel demand fluctuation. We apply the model to a virtual network numerically. Through numerical calculation, we compare a travel time reliability index before and after road construction, and examine improvement of reliability.
- 都市計画. 別冊, 都市計画論文集 = City planning review. Special issue, Papers on city planning
都市計画. 別冊, 都市計画論文集 = City planning review. Special issue, Papers on city planning 41(3), 79-84, 2006-10-25
都市計画学会 = City Planning Institute of Japan