Such navigational aids might also alert motorists to nearby businesses, give directions and even offer discounts for customers who drove up and said "the Web sent me."

Transit New Zealand has systems installed on the State Highways surrounding the area, which alert motorists and in some cases prevent entry to the danger areas.

Green cat's eyes are used to alert motorists to upcoming junctions.

Thus, one of his colleagues, John Robinson, suggested that "freezing fog" be used to alert motorists that bridges can be slick though the roads leading to them aren't.

The side of the road was bathed in swirling blue and red lights, alerting motorists to their presence.

This is a large, bronze bell with an electromagnetically driven clapper which alerted motorists to the approach of a train.

Government information films try to alert motorists to the perils of fog.

S. 280 East to alert motorists that they are junctioning SR-149; however, recently installed signs on U.S. 31 North/U.

Police vehicles are often fitted with audible and visual warning systems to alert other motorists of their approach or position on the road.

To alert motorists on major roads that their help is wanted, large blue signs reading "Dial *FHP" are being put up at county lines.