Evaluation of Diverging Diamond Interchanges for Alabama, Phase I
| 项目名称： | Evaluation of Diverging Diamond Interchanges for Alabama, Phase I |
| 摘要： | The goal of this research is to develop guidance for the Alabama Department of Transportation (ALDOT) to establish the locations where a diverging diamond interchange (DDI) would be beneficial. The University of Alabama (UA) will assist the University of Alabama - Huntsville (UAH) to perform the proposed research. The objective of this project is to assist on tasks associated with DDI project funded by ALDOT. This will require the subcontractor to run simulations and evaluate alternatives. The DDI, or Double Crossover Diamond (DCD), is a form of interchange design upon which the intersections of the cross-over road and the entrance/exit ramps are constructed to remove all left turns. The benefits of the interchange design stem from the removal of left-turns at the entrance/exit ramp signals, thus reducing the number of phases required improving traffic flow and reducing the number of conflict points improving safety. |
| 状态： | Completed |
| 资金： | 54519.00 |
| 资助组织： | University of Alabama, Huntsville |
| 项目负责人： | Anderson, Mike |
| 执行机构： | University Transportation Center for Alabama |
| 开始时间： | 20130601 |
| 实际结束时间： | 20140430 |
| 主题领域： | Design；Highways；Operations and Traffic Management |
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- An Assessment of Safety and Geometric Design Criteria for Diverging Diamond Interchanges
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