The 1965 Highway Beautification Act established federal guidelines for off-premise signs (billboards) located within 660 feet of federal highways. When “changeable Electronic Variable Message Signs (CEVMS),” (typically called electronic message centers, or EMCs, in the sign industry), began to become more commonplace, individual states began to establish agreement (Federal/State Agreements — FSAs) with the Federal Highway […]
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How Big Should a Sign’s Letters Be?
Signs need to be legible and readable, for both pedestrians and motorists. But the safety consideration becomes paramount for the latter. Consequently, the Federal Highway Administration (FHWA) sets minimum standards for the letters that appear on the interstate signs that say “Cincinnati” and “Second St.” and “Next Exit.” These standards are outlined in the FHWA-produced […]
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Do Electronic Message Centers Cause Traffic Accidents?
Subjective statements often suggest that electronic message centers (EMCs) cause traffic accidents because they are distracting. Yet, does any empirical evidence document this theory? No. In 1980, the Federal Highway Administration published its “Safety and Environmental Design Considerations in the Use of Commercial Electronic Variable-Message Signs” study, which was hugely inconclusive. It conducted the study […]
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