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I. Signs
 
Temporary condition signs
 
These signs warn of unusual temporary conditions such as road work zones, diversions, detours, lane closures or traffic control people on the road. They are usually diamond-shaped with an orange background and black letters or symbols.

Here are some common temporary condition signs:


Construction work one kilometre ahead.
a temporary condition sign


Road work ahead.
a temporary condition sign


Survey crew working on the road ahead.
a temporary condition sign


Traffic control person ahead. Drive slowly and watch for instructions.
a temporary condition sign


You are entering a construction zone. Drive with extra caution and be prepared for a lower speed limit.
a temporary condition sign


Temporary detour from normal traffic route.
a temporary condition sign


Flashing lights on the arrows show the direction to follow.
a temporary condition sign


Pavement has been milled or grooved. Your vehicle's stopping ability may be affected so obey the speed limit and drive with extra caution. Motorcyclists may experience reduced traction on these surfaces.
a temporary condition sign


Lane ahead is closed for roadwork. Obey the speed limit and merge with traffic in the open lane.
a temporary condition sign


Closed lane. Adjust speed to merge with traffic in lane indicated by arrow.
a temporary condition sign


Do not pass the pilot or pace vehicle bearing this sign.
a temporary condition sign


Reduce speed and be prepared to stop.
a temporary condition sign


Follow detour marker until you return to regular route.
a temporary condition sign


Enforces doubling the HTA fines for speeding in a designated construction zone when there are workers present.
a temporary condition sign