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Evaluation of Automated Weather Detection and Motorist Warning Systems for Fog-Related Incidents in the Tampa Bay Area
| 题名： | Evaluation of Automated Weather Detection and Motorist Warning Systems for Fog-Related Incidents in the Tampa Bay Area |
| 作者： | Michael C. Pietrzyk, P.E. |
| 关键词： | Evaluation; Automated Weather Detection; Motorist Warning Systems; Fog-Related Incidents; Tampa Bay Area |
| 摘要： | On December 27, 1996, at 11:30 a.m., a catastrophic fog-related crash occurred on the Sunshine Skyway Bridge (I-275, connecting Tampa and St. Petersburg) involving a 54-vehicle incident in both travel directions. This single event, although very uncharacteristic of historical fog-related crashes in the Tampa Bay area, piqued local interest and concern about fog detection and motorist warning systems that may be needed for the area (Hillsborough and Pinellas counties). The Tampa Bay area typically has about 22 heavy fog days annually when visibility is 1/4 mile or less. This condition tends to routinely occur primarily between December and February in the Tampa Bay area. Between 1987-1995, 829 fog-related crashes were reported in the Tampa Bay area and 6,323 statewide. This represents 0.30 and 0.32 percent of the total reported crashes in Tampa Bay and the state, respectively. Crash report sites have been scattered throughout the Tampa Bay area during this same period, and only the "fog season" can be identified. About 12 states have been formally engaged in detection and warning system evaluation related to fog, and several have invested $2-$4 million for integrated visibility/weather and motorist warning systems. However, the benefits for deployment of such systems have not been documented. Even though a recurring theme in all fog crash evaluations conducted by the states and National Transportation Safety Board recommends the development of a driver awareness campaign (to assure driver behavior is uniform in times of limited visibility), only California has followed through in this endeavor. This report identifies and compares various components of automatic visibility detection/motorist warning systems in operation. The report also describes a focused driver awareness campaign to reduce fog-related crashes, since the Tampa Bay area was found to exhibit no particular fog-prone or fog-crash-prone areas. |
| 总页数： | ITS America. Meeting (8th : 1998 : Detroit, Mich.). Transportation technology for tomorrow : conference proceedings. 1998. pp16 |
| 报告类型： | 科技报告 |
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