Effect of Fluorescent Yellow Warning Signs at Hazardous Locations.

摘要

Yellow warning signs are an important and abundant type of traffic control device. Improving warning signs could be a cost-effective countermeasure at hazardous locations, especially rural locations where approximately 61% of the Nation's traffic fatalities occur. The use of fluorescent yellow sheeting of the traffic sign while conforming to the guidelines specified by the manual of Uniform Traffic Control Devices. The 3M Corporation, and later other companies, developed a long-lasting fluorescent yellow retroreflective sign. Although the properties of the fluorescent yellow sheeting indicate that the conspicuity of the signs is much higher, the increased conspicuity ultimately must prompt a change in motorist behavior for highway safety to be improved. Therefore, the purpose of this research was to evaluate the effectiveness of fluorescent yellow warning signs in improving highway safety at hazardous locations.