Reasonable Alternatives for Grade-Separated Intersection
| 项目名称： | Reasonable Alternatives for Grade-Separated Intersection |
| 摘要： | Grade-separated intersections increase the capacity of two non-freeway roads by elevating two or more approaches, thereby removing conflict points. Despite not including a freeway, most of the grade-separated intersections are designed using freeway-level concepts such as loop ramps. While sometimes efficient, this results in excessive right-of-way needs, increased instances of pedestrians crossing free-flow movements, and over design. This project will develop renderings of each of the left turning options including general guidance on median placement, lane assignments, and right-of-way needs. General determination of cost as well as vehicular and pedestrian safety impacts will be detailed in the guidance for planning and design professionals. Because some innovative intersections have been patented, a patent landscape analysis will investigate the existing patents in grade-separated intersection designs. Finally, both deterministic and stochastic operational analysis will be conducted, with a micro-simulation analysis for the designs with the greatest potential for implementation in North Carolina. With this guidance on cost, safety, and operations, North Carolina Department of Transportation (NCDOT) planners and engineers will be able to more appropriately select a grade-separated intersection design for various vehicular and pedestrian volume levels. |
| 状态： | Active |
| 资金： | $218,943 |
| 资助组织： | North Carolina Department of Transportation |
| 管理组织： | North Carolina Department of Transportation |
| 项目负责人： | Penny, Lisa E. |
| 执行机构： | North Carolina State University, Raleigh |
| 主要研究人员： | Chase, R. Thomas |
| 开始时间： | 20170801 |
| 预计完成日期： | 20191231 |
| 实际结束时间： | 0 |
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