The legal framework for traffic signage is contained in a number of Acts and Regulations. These include the Road Traffic Acts, the Road Traffic (Signs) Regulations and the Road Traffic (Traffic and Parking) Regulations.
The legal responsibility for public roads is vested in the County Councils and City Councils. These local authorities, in discharging their road functions, are referred to as ‘Road Authorities’. The statutory duty of Road Authorities includes responsibility for the specification, construction and maintenance of road signs and markings within their functional area.
In the case of rail bridges, the headroom to be signed must be agreed with the relevant railway authority.