Signs on primary routes - green backgrounds - The Highway Code

Blue panels indicate that the motorway starts at the junction ahead. Motorways shown in brackets can also be reached along the route indicated. White panels indicate local or non-primary routes leading from the junction ahead. Brown panels show the route to tourist attractions. The name of the junction may be shown at the top of the sign. The aircraft symbol indicates the route to an airport. A symbol may be included to warn of a hazard or restriction along that route.