Temporary condition signs

MTO Driver’s Handbook: Traffic Signs and Lights, Temporary condition signs

Temporary condition 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.

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Practice questions on this card

ON-101A sign is diamond-shaped, with an orange background and black letters or symbols. Which kind of sign is it, and what does it do?
ON-127What should you do when you see this sign?
ON-1380What does this sign tell you?
ON-1381You see this sign at the side of the road. What does it mean?
ON-1382Which situation does this sign warn you about?
ON-1383What should you do when you see this sign?
ON-1384What does this orange sign mean?
ON-1385What do the flashing lights on the arrows of this sign tell you?
ON-1386What should you do when you see this sign?
ON-1387What does this sign mean?
ON-1388What should you do when you see this sign?
ON-1389A pilot vehicle ahead of you carries this sign. What must you do?
ON-1390What should you do when you see this sign?
ON-1391You are on a detour and see this sign. What should you do?
ON-1392Under the Highway Traffic Act (HTA), what does this sign enforce?