40 mph Permissible Speed Warning Indicator as used on the British rail network. This sign provides drivers with early warning that they are approaching track subject to a lower speed limit.
Their use is not universal, but where they are used they must be placed at least braking distance from the start of the speed restriction, and must bevisible to the driver for a minimum of 4 seconds.
This model depicts the standard self-reflecting style of board introduced in the mid-1980s, with white face and yellow border signifying Imperial units.
Version 41: Initial release for TS2009+, uses mesh library <kuid:209453:23100> and name changed from UK Speed Advance 040mph to UK Speed Warning 040mph.