Study topic
Ontario speed limits
Speed limits are a core topic on the Ontario G1 knowledge test. Knowing the default limit for each road type is essential, because limits are not always posted.
Key facts to remember
- ◆ Built-up areas (city, town, village): 50 km/h unless otherwise posted.
- ◆ Outside built-up areas: 80 km/h unless otherwise posted.
- ◆ 400-series highways: usually 100 km/h, with some sections posted at 110 km/h.
- ◆ School zones and community safety zones: reduced limits, often when lights are flashing.
- ◆ Speeding fines are doubled in construction zones when workers are present.
A posted sign always overrides the default limit. Lower limits also apply on certain roads and to specific vehicles, so watch for posted speeds.