The Highway Code gives examples of the most commonly used signs. These are:
- regulatory signs - signs with red circles
- warning signs - mostly triangular
- direction signs - mostly rectangular (destinations and map type)
- information signs - mostly rectangular.
All signs on the highway must be authorised by the local authority. Special signs are permitted with prior approval of the Department for Transport or if they are experimental and under trial.
Tourism signing provides an important opportunity for both tourism businesses and local economies and will be implemented positively and constructively.
There is, of course, an advertising element as they do help to generate impromptu visits. However, their primary purpose is to guide those wishing to visit a tourist destination along the easiest route for the remainder of their journey, or to show facilities that a tourist wouldn't expect to find.