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
Stop ahead
Yield ahead
Yield ahead
Traffic control signals ahead
Traffic control signals ahead
School bus stop ahead
School bus stop ahead

Stop at traffic lights ahead when yellow lights flashing

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 right
Sharp turn left
Sharp turn left
Curve right
Curve right
Road curves left
Road curves left
Road turns left and right
Road turns left and right
Winding road
Winding road
Recommended maximum speed through this curve under ideal driving conditions
Recommended maximum speed through this curve under ideal driving conditions

Crossings ahead

Pedestrian crossing
Pedestrian crossing
Animal crossing
Animal crossing
Moose crossing
Moose crossing
Bicycle crossing
Bicycle crossing
School crosswalk
School crosswalk
Motorized snow vehicles crossing
Motorized snow vehicles crossing

Intersections ahead

Hidden road right ahead
Hidden road right ahead
Hidden road left ahead
Hidden road left ahead
Hidden road ahead
Hidden road ahead
Y intersection ahead
Y intersection ahead
T intersection ahead
T intersection ahead
T intersection on left ahead
T intersection on left ahead
Railway crossing ahead
Railway crossing
Trucks entering from right
Trucks entering from right
Dead end ahead
Dead end
Roundabout ahead
Roundabout

Roadways ahead that join

Merging traffic ahead
Merging traffic

Roadways ahead side-by-side but do not join

Free flow ahead
Free flow (added lane)

Narrow roadways ahead

Road narrows both sides
Road narrows both sides
Narrow passage
Narrow passage
Left lane narrows to right
Left lane narrows to right
Right lane narrows to left
Right lane narrows to left
Left lane ends
Left lane ends
Right lane ends
Right lane ends

Divided highway

Divided highway begins
Divided highway begins
Divided highway ends
Divided highway ends

Changing road conditions

Hill
Hill
Bump
Bump
Pavement ends
Pavement ends
Slippery when wet
Slippery when wet
Hazard marker - object on right
Hazard marker object on right
Hazard marker - object on left
Hazard marker object on left
Rumble strips
Rumble strips
Falling rock
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 left
Chevron sign indicates a sharp bend in the road to the right
Chevron sign indicates a sharp bend in the road to the right

Shared-use

Share the road with cyclists

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.