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I. Signs
Other signs

Here are some other common signs:

Oversize load sign

Vehicles and/or loads in excess of dimensions prescribed under Section 109 of the Highway Traffic Act must be marked with bright red or orange warning flags, which are at least 40 cm square, mounted to the extremities of the vehicle or load. The flag(s) must be kept in good and clean condition so as to not diminish their effectiveness.

In addition to flags, vehicles and/or loads must display on the front of the vehicle and the rear of the load, in a clearly visible position, either one of the two following signs: a sign visible for a distance of at least 150 metres bearing the words “OVERSIZE LOAD” in black letters at least 200 millimetres high on a yellow background; or, a “D” sign, as illustrated. When travelling at night, the sign must be made of high-intensity, retro-reflective material. The sign cannot obstruct lights or other safety devices on the vehicle or trailer; and it must be removed or covered when not in use.


 

Oversize load sign

Slow-moving vehicle sign

The “slow-moving vehicle” sign is an orange triangle with a red border. It alerts other drivers that this vehicle will be travelling at 40 km/h or less. When on a road, farm tractors, farm implements/machinery and vehicles not capable of sustaining speeds over 40 km/h must display the slow moving vehicle sign. Watch for these slow moving vehicles and reduce your speed as necessary.


a slow-moving vehicle sign

Dangerous goods

When transporting dangerous goods, safety marks, placards or labels are displayed to identify dangerous-goods classification and the nature of danger they pose. They are an information tool to provide a quick identification that can be found on trucks, cargo and even pallets.


a dangerous goods sign

Long commercial vehicle (LCV)
This placard indicates a long commercial vehicle, which is a double trailer and can be up to 40 metres in length. It is important to be able to recognize an LCV on the highway, based on rear signage, and anticipate both extended length and limited speed when preparing to pass one on the highway.


a slow-moving vehicle sign

 

EDR signs are used during the unscheduled closure of a provincial highway when OPP detour all traffic off the highway. The EDR markers are located along alternative routes and provide direction to motorists around the closure and back onto the highway.

 

a slow-moving vehicle sign