Warning systems evaluation for overhead clearance detection : final report.
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2017-02-01
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Alternative Title:Warning systems evaluation for overhead clearance detection.
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Abstract:This study reports on off-the-shelf systems designed to detect the heights of vehicles to minimize or eliminate collisions with roadway bridges. Implemented systems were identified, reviewed, and compared and relatively inexpensive options recommended. Systems for the Georgia Department of Transportation (GDOT) should be able to effectively detect vehicle heights to prevent collisions with low-clearance bridges. Systems were classified in three main categories: passive (rigid or nonrigid), active, or combined. Each system had its own advantages and disadvantages. Since user needs and desired classification results may differ, the authors focused on advantages that specifically serve the interests of GDOT. Some systems have extra functionalities, such as vehicle-type classification, detection of the vehicle’s height and length, and photographic acquisition of license plate information. However, some of the implemented solutions are costly and may not target GDOT’s particular needs. Therefore, the study identifies the few adequate, cost-effective, and efficient systems that clearly meet those needs.
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