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Developing Pavement Safety-Based Guidelines for Improving Horizontal Curve Safety, Project Summary.
| 题名： | Developing Pavement Safety-Based Guidelines for Improving Horizontal Curve Safety, Project Summary. |
| 作者： | Pratt, M. P.; Geedipally, S. R.; Wilson, B.; Das, S.; Brewer, M.; Lord, D. |
| 关键词： | Highway design, Highway safety, Horizontal curves, Rural highways, Highway curves, Pavement, Skid resistance, Crash, Crash risk, Wet-weather crash, Countermeasures, Texas Department of Transportation (TxDOT) |
| 摘要： | Horizontal curves are an essential part of the rural highway system, yet they experience a disproportionate percentage of the state’s crashes, particularly run-off-road and wet-weather crashes. It is desirable to implement safety countermeasures to reduce these crashes, but the presence of large numbers of curves on the system makes it essential to weigh the cost-effectiveness of proposed countermeasures. Pavement-based countermeasures such as high-friction surface treatments have the potential to reduce wet-weather crash frequency by improving skid resistance. These treatments represent an intermediate-cost option because they are more expensive than installing signs and markings but less expensive than roadway realignment and straightening. To identify the best locations to install pavement treatments, it is necessary to weigh considerations of treatment cost, crash frequency, and exposure to wet-weather conditions. |
| 报告类型： | 科技报告 |
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