What is the minimum visibility distance required for highway signs in Virginia?

The minimum visibility distance required for highway signs in Virginia is established to ensure that drivers have sufficient time to react to important information provided by the signs. A visibility distance of 500 feet is designed to alert drivers well in advance of upcoming conditions, curves, turns, or other critical information that may impact their driving. This distance allows for safe decision-making and helps to maintain traffic flow and safety on the highways.

Setting the minimum visibility at 500 feet strikes a balance between giving drivers enough warning and the practical considerations of sign placement and visibility. This standard helps to enhance road safety by ensuring that all necessary information is visible and comprehensible to drivers as they approach signs, particularly at higher speeds typical of highway driving.