Accelerated Bridge Preservation Techniques
| 项目名称： | Accelerated Bridge Preservation Techniques |
| 摘要： | This project used results of a national survey to collect life expectancy of bridge activities and the duration of construction to do those activities. The national survey also showed the current use of contractors, in-house staff and combinations to construct execute those activities. In addition, the national survey provided input from 11 agencies on products or processes to speed bridge preservation activities. A second survey of regional bridge managers in Michigan provided a list of activities and timelines they would use over a 75-year period. A bridge traffic table provides input on traffic for all bridges on the Michigan system. An excel-based tool was developed to evaluate discounted bridge activity costs and user delay costs for bridges in the table. Examples show the effect of discount rate, speed limit, average annual daily traffic, region, and use of modified activity lists. The tool, and especially the use of modified activity lists, allows a region to evaluate user delay costs as well as bridge activity costs for their current practice and for adjustments to that practice. |
| 状态： | Active |
| 资助组织： | Michigan Department of Transportation |
| 执行机构： | Michigan State University, East Lansing |
| 主要研究人员： | Corley-Lay, Judith |
| 开始时间： | 20180129 |
| 预计完成日期： | 20200430 |
| 实际结束时间： | 0 |
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