Snow-removal vehicles on public roadways are equipped with flashing blue lights that can be seen from 150 metres. Flashing blue lights warn you of wide and slow-moving vehicles: some snow plows have a wing that extends as far as three metres to the right of the vehicle. On freeways, several snow plows may be staggered across the road, clearing all lanes at the same time by passing a ridge of snow from plow to plow. Do not try to pass between them. This is extremely dangerous because there is not enough room to pass safely, and the ridge of wet snow can throw your vehicle out of control.
Blowing snow may create whiteouts where snow completely blocks your view of the road. When blowing snow is forecast, drive only if necessary and with extreme caution. Before you drive - and during your trip - check weather forecasts and road reports. If there is a weather warning, or reports of poor visibility and driving conditions, delay your trip until conditions improve, if possible.
If you get caught driving in blowing snow or a whiteout, follow these safe driving tips: Slow down gradually and drive at a speed that suits the conditions. Make sure the full lighting system of your vehicle is turned on. Use your low-beam headlights. High beams reflect off the ice particles in the snow, making it harder to see. If you have fog lights on your vehicle, use them, in addition to your low beams. Be patient. Avoid passing, changing lanes and crossing traffic. Increase your following distance. You will need extra space to brake safely. Stay alert. Keep looking as far ahead as possible. Reduce the distractions in your vehicle. Your full attention is required. Keep your windows and mirrors clean. Use defroster and wipers to maximize your vision. Try to get off the road when visibility is near zero. Pull into a safe parking area if possible.
DON'T: Don't stop on the travelled portion of the road. You could become the first link in a chain-reaction collision. Don't attempt to pass a vehicle moving slowly or speed up to get away from a vehicle that is following too closely.
If you become stuck or stranded in severe weather, stay with your vehicle for warmth and safety until help arrives. Open a window slightly for ventilation. Run your motor sparingly. Use your emergency flashers. Be prepared and carry a winter driving survival kit that includes items such as warm clothing, non-perishable energy foods, flashlight, shovel and blanket.
Snow plows have flashing blue lights visible from 150 metres
Some plows have wings extending 3 metres to the right
Multiple plows may work staggered across freeway lanes
Never try to pass between staggered snow plows
Ridge of wet snow can throw vehicle out of control