历史街区慢行交通连续网络设计鲁棒优化模型

发布时间：2018-03-07 15:34

本文选题：交通工程　切入点：历史街区　出处：《长安大学学报(自然科学版)》2015年05期 　论文类型：期刊论文

【摘要】：为了提出合理、可靠的慢行交通网络设计的新方法,基于历史街区慢行系统的结构共性——网络性,引入复杂网络理论与分析方法,对历史街区中独立的慢行交通网络进行拓扑结构转化;假定OD需求属于一个有界闭集,以道路红线宽度作为慢行通道通行能力增加的上限,利用鲁棒优化方法建立不确定OD需求下考虑用户均衡约束的慢行交通连续网络设计极小极大模型,并应用灵敏度分析结合逐次平均法进行模型求解,最后以西安市湘子庙历史街区慢行网络为例进行实际计算。研究结果表明:在进行交通网络设计方案确定时,鲁棒优化投资计划比传统投资计划的系统总阻抗大,但更具稳定性,可有效规避投资风险;在OD需求不确定的情况下,"鲁棒"投资计划显得更具稳定性,能够更大程度的规避风险;该模型可以根据交通规划决策者对于风险的偏好程度和投资费用,确定各路段的"鲁棒"投资计划。
[Abstract]:In order to put forward a reasonable new method, slow traffic network design, reliable structure, common historical block slow system network based on complex network theory and the analysis method of slow independence in historic blocks traffic network topology transformation; assume that OD needs to belong to a bounded closed set, on the road line width increases as the slow channel capacity limit, using the robust optimization method establishes OD demand under slow user equilibrium constraints transportation continuous network design minimax model, sensitivity analysis was applied to solve the model by the successive average method, and finally to Xi'an shoshi Temple historic district as an example of the actual network slow the calculation. The results show that in determining the traffic network design, the robust optimization investment plan than the total impedance of system of traditional investment plan, but more stable The qualitative, can effectively avoid the investment risk; the OD in the case of demand uncertainty, "robust" investment plan is more stable, to a greater degree of risk aversion; the model can according to the traffic planning decision for risk preference and investment cost, determine the section of the "robust" investment plan.

【作者单位】：西安建筑科技大学土木工程学院;广东省电力设计研究院;长安大学公路学院;
【基金】：国家自然科学基金项目(51278396) 中央高校基本科研业务费专项资金项目(310821151016)
【分类号】：U491

【相似文献】