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Tool to Aid the Comparison of Improvement Projects for the Virginia Department of Transportation
| 题名： | Tool to Aid the Comparison of Improvement Projects for the Virginia Department of Transportation |
| 作者： | Haimes, Y. Y.; Lambert, J. H.; Frohwein, H. I.; Schiff, L. A.; Hashemi, P. K. |
| 关键词： | Accident risk forecasting##Risk assessment##Decision making##Prioritization##Highway construction##Construction projects## |
| 摘要： | The goal of this effort is to assist the Virginia Department of Transportation (VDOT) in improving the comparison in planning of potential primary and secondary roadway improvement projects. Historical projects that have been implemented or considered for implementation have been used as a case study data set. Methods are proposed for estimating cost, performance gain and crash risk reduction of future roadway projects, with the main focus being the presentation of tradeoffs among these criteria. If, in a particular case, more accurate and/or appropriate data is available for one or more of these criteria (e.g. from a simulation study that has been performed), then this information can easily be used to supplement or replace the estimations proposed here. The project comparison instrument combines three major decisionmaking attributes in project selection: crash risk, performance, and project cost. By quantifying these attributes across a number of proposed highway improvement projects, projects can more readily be compared to one another, and a more holistic view of potential projects is achieved. This is an important step when choosing a portfolio of projects each year. |
| 总页数： | 76 |
| 报告类型： | 科技报告 |
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