Optimal funding allocation strategies for safety improvements on urban intersections
Optimal funding allocation strategies for safety improvements on urban intersections
复制标题
城市交叉口安全改善的最优资金分配策略
DOI：
10.1016/j.tra.2015.03.001
复制
发表时间：
2015
影响因子：
6.4
通讯作者：
S. Boyles
中科院分区：
文献类型：
--
作者：
Sabyasachee Mishra;M. Golias;Sushant Sharma;S. Boyles
城市交叉口撞车事故造成重大经济损失。美国大多数州所采取的安全管理程序被称为公路安全改进计划，包括三个标准化步骤：（i）确定关键碰撞地点，（ii）制定对策，（iii）在确定的碰撞地点之间分配资源。这三个步骤通常是独立进行的，州规划机构对每个步骤的细节都很有限。文献综述强调了第三步的重要性，以及国家规划机构缺乏先进的工具来利用前两步获得的信息。此外，非战略性办法和缺乏评价政策的方法可能导致资金分配不理想。本文克服了这些局限性，并提出了多个最优的资源分配策略，在城市交叉口的改善，最大限度地提高安全效益，在预算和政策约束。基于利益最大化（经济竞争力）、公平分配（公平）和放宽相互排斥（在一个地点有多种选择）的拟议政策措施产生了显著不同的选择和资金分配。所提出的模型被应用到选定的交叉口在密歇根州东南部的四个县。结果加强了本文中开发的战略/政策和工具的适用性，安全项目的资金分配对关键的城市交叉口。
Urban intersections crashes cause significant economic loss. The safety management process undertaken by most states in the United States is referred to as Highway Safety Improvement Program and consists of three standardized steps: (i) identification of critical crash locations, (ii) development of countermeasures, and (iii) resource allocation among identified crash locations. Often these three steps are undertaken independently, with limited detail of each step at the state planning agencies. The literature review underlines the importance of the third step, and the lack of sophisticated tools available to state planning agencies for leveraging information obtained from the first two steps. Further, non-strategic approaches and unavailability of methods for evaluating policies may lead to sub-optimal funding allocation. This paper overcomes these limitations and proposes multiple optimal resource allocation strategies for improvements at urban intersections that maximize safety benefits, under budget and policy constraints. Proposed policy measures based on benefits maximization (economic competitiveness), equitable allocation (equity), and relaxation of mutually exclusiveness (multiple alternatives at one location) produce significantly different alternative and fund allocation. The proposed models are applied to selected intersections in four counties of southeast Michigan. Results reinforce the applicability of the strategies/policies and tools developed in this paper for safety project funding allocation on critical urban intersections.
DOI：
10.1002/9780470549124
发表时间：
2010-08
期刊：
--
影响因子：
--
作者：
Singiresu S. Rao
通讯作者：
Singiresu S. Rao