RVMS 100 Road Tunnel Speed Limit
The RVMS 100 Road Tunnel Speed Limit Sign shall only be erected in tunnels and on the approaches to and exits from tunnels. This sign consists of a black square which, when illuminated, displays a red roundel containing a number in yellow or white on a black background to indicate the speed limit applying. The standard size of the sign is for the outer diameter of the roundel to be 500mm, but diameters of 475mm, 600mm or 750mm may also be used.
Sign RVMS 100 shall be provided with a Supplementary Plate P 054, to denote that the speed is in km/h. The plate may be positioned above or below the sign.
Sign RVMS 100 shall be illuminated and extinguished as required by the Road Authority or its agent. Where these signs are displayed, Speed Limit Signs, RUS 039 to RUS 045, will not normally be required.