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Prototype Mobile Luminance Measurement System and Level of Service for Evaluating Rural High-Speed Nighttime Delineation.
| 题名： | Prototype Mobile Luminance Measurement System and Level of Service for Evaluating Rural High-Speed Nighttime Delineation. |
| 作者： | Carlson, P.; Ge, H.; Miles, J. D.; Zhang, Y. |
| 关键词： | Delineation; High Speed; Highway Transportation; Level Of Service; Luminance; Measurement; Mobile; Night Visibility; Research Project; Retroflectivity; Roads; Rural Areas; Traffic Control Devices |
| 摘要： | Transportation agencies routinely travel their extensive roadway networks conducting subjective roadway assessments of traffic control devices both day and night. Retroreflectivity is a good tool for product testing but can provide false positives for traffic control devices based on the approach geometry. This research project developed an objective nighttime assessment method for traffic devices that could be tied back to a form of level of service. The project also correlated luminance data with level of service. Researchers recommend the use the precise and approximate measurement methods in conjunction with nighttime inspections and retroreflectivity measurements to assess the accuracy and repeatability versus time. |
| 报告类型： | 科技报告 |
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