Obey the maximum speed limit posted on signs along the road, but always drive at a speed that will let you stop safely. This means driving below the maximum speed in bad weather, in heavy traffic or in construction zones. School zones and construction zones often have lower speed limits to protect children and those who work on or near the road.
Where there are no posted speed limits, the maximum speed is 50 km/h in cities, towns and villages, and 80 km/h elsewhere.
Cruise control is a driver aid that can improve fuel economy and prevent you from inadvertently exceeding the speed limit. However, there are some circumstances in which cruise control should not be used, such as adverse driving conditions (wet, icy or slippery roads), in heavy traffic or when you are feeling fatigued.
Speed measuring warning devices are illegal. If you get caught driving with such a device, you will be fined and accumulate demerit points.