Considerations for “Super 3” Cross-Section in High-Volume Rural Corridors with Turning Traffic
| 项目名称： | Considerations for “Super 3” Cross-Section in High-Volume Rural Corridors with Turning Traffic |
| 摘要： | Rural high-speed two-lane roads continue to see increased volumes statewide. Traditionally, those roads might be converted to limited-access divided four-lane highways under the speeds and volumes seen today, but that level of systematic conversion is not feasible in every location. The Super 2 concept is being used across the state to provide passing opportunities and increase capacity on rural two-lane roads, but passing lanes are a treatment for through vehicles and do not address the needs of turning vehicles. As a result, there are numerous at-grade access points on rural high-speed roads that introduce potential operational delays and safety concerns, which may be compounded if passing lanes are added in locations with generators of large volumes of turning traffic. The research team will investigate the operational and safety benefits of intersection turning treatments on two-lane and Super 2 corridors, as well as best practices for designing these treatments. In this project, the research team will use existing conditions on two-lane and Super 2 corridors with and without intersection turning treatments to develop computer simulation models for evaluating the effectiveness of such treatments on operations and safety. The research team will use the evaluation results to updated guidelines that TxDOT can use to implement turning treatments on sections in or near passing lanes. |
| 状态： | Active |
| 资金： | 338945 |
| 资助组织： | Texas Department of Transportation<==>Federal Highway Administration |
| 项目负责人： | Odell, Wade |
| 执行机构： | Texas A&M Transportation Institute (TTI) |
| 开始时间： | 20200102 |
| 预计完成日期： | 20211231 |
| 主题领域： | Highways |
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