TW-21 Detour Ahead Follow directional signs consist of directional arrow and a symbol to determine the direction of the detour, several symbols can be used for different routes. To be used to advise the direction of a route around a road closure. It can be used on Level 1 or Level 2/3 Roads. Detour Symbols include: (Please specify at time of order): - Square - Diamond - Circle - Diamond - State highway route shield.
Used in conjunction with TW-22 Detour Indicator TW Supps.