Highway guide signs provide information about directions and distances to drivers. These signs are green with white letters. The high speed on highways and expressways can cause motorists to miss seeing a single sign, and drivers may need to make one or more lane changes, often in heavy traffic, in order to exit. For these reasons, usually one advance guide sign is followed by another advance sign, and a third sign is posted at the exit. Other guide signs include highway route markers, mile markers, street signs, exit signs, toll road signs, logo signs and rest area signs.
Highway guide signs are in the shape of a horizontal rectangle. You can find them less frequently in the shape of a shield or square.
Highway guide signs are used to give information about distances and directions to drivers on highways or expressways.
