Decision aid for allocation of transportation funds to guardrails

被引:31
作者
Lambert, JH [1 ]
Baker, JA [1 ]
Peterson, KD [1 ]
机构
[1] Univ Virginia, Ctr Risk Management Engn Syst, Dept Syst & Informat Engn, Charlottesville, VA 22904 USA
关键词
guardrail; roadway safety; resource allocation; multicriteria decision making; benefit-cost analysis; transportation planning;
D O I
10.1016/S0001-4575(01)00085-9
中图分类号
TB18 [人体工程学];
学科分类号
1201 ;
摘要
We address the need for allocation of resources to run-off-road and fixed-object hazards on immense secondary road systems. In Virginia, there are 95,000 km of roadway with uncharacterized hazards in need of guardrail upgrade, installation, or related warning signs or other protection. A decision aid is developed to assist the planner in guardrail resource allocation by accounting for the potential crash severities, traffic exposures, costs of treatment, and other factors. A premise is that no single benefit-cost ratio or selection criterion applies across all localities. The decision aid enables the planner to interpret the variety of benefits and costs in their own units, emphasizing the needs and preferences of individual localities. The paper describes: (1) archiving and comparison of protected and unprotected hazards; (2) regional screening of hazardous corridors and (3) multicriteria benefit-cost analyses of guardrail sites. A case study of guardrail selection is presented. (C) 2002 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:47 / 57
页数:11
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