Concrete Median Barrier for Flood-Prone Areas
| 项目名称： | Concrete Median Barrier for Flood-Prone Areas |
| 摘要： | Concrete median barriers are used to prevent serious cross-median crashes by preventing penetration of passenger vehicle and trucks into on-coming traffic. During Hurricane Harvey, it was observed that solid concrete median barriers can act as a dam for flood waters. This raises the height of the flood waters and increases the severity of flooding on both the highway and the surrounding roads and community. This rise in flood waters increases the risk to both motorists and others in the area, and can also increase the level of flood damage to the road network and any nearby structures. In the Beaumont area, several sections of median barrier were exploded to help mitigate the increased flooding being caused by the solid concrete barrier. In the Houston area, large sections of portable barrier being used as permanent median barrier were displaced or broken by the flood waters. These situations required significant repair before the highways could be reopened and the level of safety for motorists restored. Because median barriers are an important safety feature that provide an increased level of safety for motorists, they cannot be removed. Consequently, there is a need for a crashworthy median barrier that is designed to accommodate the passage of flood water during severe weather events. Project objectives include: Design and analyze a median barrier that will both meet the AASHTO MASH and permit sufficient passage of water through the barrier. Consideration may also be given to use of the barrier openings as small animal crossings in areas where animal impacts are common. Full-scale crash testing will verify compliance with MASH Test Level 4. When implemented in flood-prone areas, such a barrier would reduce the severity of flooding, decrease risk to motorists and others in the area, and reduce the level of damage to the highway and surrounding area. |
| 状态： | Completed |
| 资金： | $445921 |
| 资助组织： | Texas Department of Transportation |
| 项目负责人： | Odell, Wade |
| 执行机构： | Texas A&M Transportation Institute, College Station |
| 主要研究人员： | Dobrovolny, Chiara S |
| 开始时间： | 20180901 |
| 预计完成日期： | 20200228 |
| 实际结束时间： | 20200228 |
相关文献
- Develop Standards for Temporary Concrete Median Barrier in Flood-Prone Areas
- Assessing the Impacts of Super Storm Flooding in the Transportation Infrastructure - Case Study: San Antonio, Texas
- Development of MASH Test Level 3 (TL-3) Compliant Transition between Median Guardrail and Median Concrete Barrier
- Recommended Guidelines for the Selection and Placement of Test Levels 2 through 5 Median Barriers
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- MASH TL-4 Engineering Analyses and Detailing of 36-inch and 42-inch High Median Barriers for LADOTD
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