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HIGHWAY FOG WARNING SYSTEM.
| 题名： | HIGHWAY FOG WARNING SYSTEM. |
| 关键词： | Density-; Driver-information-systems; Fog-; Highways-; Multiple-vehicle-accidents; Sensors-; Traffic-accidents; Traffic-safety; Visibility-; Warning-systems |
| 摘要： | The need for a highway fog warning system has long been internationally recognized. With such a system, motorists can avoid tragic pile-up accidents caused by dense or patchy fog. The development of a cost-effective highway visibility sensor that measures the density of roadway fog and is linked to traveler information systems could substantially reduce fog accidents. With this in mind, FHWA conducted a study - summarized in this brief - to develop a low-cost, reliable fog sensor. |
| 总页数： | TechBrief. 1999/04. pp2 |
| 报告类型： | 科技报告 |
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