The Traffic Signs Regulations and General Directions 2002

PART II SIGNS AUTOMATICALLY ACTIVATED BY VEHICULAR TRAFFIC

2.  One of the following legends may be displayed on a sign which is activated by a particular type of vehicle approaching the equipment which controls the sign—

(a) “OVERHEIGHT VEHICLE DIVERT” with—

(i) an arrow;

(ii) “USE” and a route number; or

(iii) “FOLLOW” and a symbol shown in Part VII of Schedule 13;

(b) “OVERHEIGHT VEHICLE TURN BACK”;

(c) “HIGH VEHICLE USE MIDDLE OF ROAD”; or

(d) “ONCOMING VEHICLE IN MIDDLE OF ROAD”.