What is road shield?

A road shield is a sign designed to mark and identify highways, freeways, motorways, and other types of roads. It is usually round or shield-shaped and contains a number or letter that represents a specific route. The shield is often color-coded to indicate the type of road, such as green for primary routes, blue for interstates, and red for alternate routes. Road shields serve as a useful navigational tool for motorists, providing information about which direction to take, the destination, and the distance remaining. They also help emergency services locate and respond to incidents quickly. Road shields are typically made of reflective materials, making them highly visible at night and in low-light conditions.