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Warning signs give drivers advance notice of actions required, or potentially hazardous conditions on or near a road. Some of these signs warn of:
- a traffic regulation, such as stop or yield
- features or physical conditions of the road
- hazards that may require a driver to respond
Traffic regulations
Stop ahead
Yield ahead
Traffic control signals ahead
School bus stop ahead
Stop at traffic lights ahead when yellow lights flashing
This warning sign is placed in advance of some intersections with traffic control signals. When the yellow lights are flashing, drivers approaching the intersection must prepare to stop because the traffic control signal light will be turning from green to yellow or yellow to red, or is currently red.
Turn or curve ahead
Sharp turn right
Sharp turn left
Curve right
Road curves left
Road turns left and right
Winding road
Recommended maximum speed through this curve under ideal driving conditions
Crossings ahead
Pedestrian crossing
Animal crossing
Moose crossing
Bicycle crossing
School crosswalk
Motorized snow vehicles crossing
Intersections ahead
Hidden road right ahead
Hidden road left ahead
Hidden road ahead
Y intersection ahead
T intersection ahead
T intersection on left ahead
Railway crossing
Trucks entering from right
Dead end
Roundabout
Roadways ahead that join
Merging traffic
Roadways ahead side-by-side but do not join
Free flow (added lane)
Narrow roadways ahead
Road narrows both sides
Narrow passage
Left lane narrows to right
Right lane narrows to left
Left lane ends
Right lane ends
Divided highway
Divided highway begins
Divided highway ends
Changing road conditions
Hill
Bump
Pavement ends
Slippery when wet
Hazard marker object on right
Hazard marker object on left
Rumble strips
Falling rock
Chevron sign indicates a sharp bend in the road to the left
Chevron sign indicates a sharp bend in the road to the right
Shared-use
Left: Warns motorists to provide space for cyclists.
Right: warns that cyclists are allowed full use of the lane ahead and that the lane is too narrow for side-by-side driving.