- Provincial highway: 100 km/h outside a city, 80 km/h inside; other roads: 80 km/h outside a city, 50 km/h in town. These are provincial defaults; obey different posted or municipal limits.
- School/playground zones while in effect: 30 km/h; a "slow-moving vehicle" (requiring the slow sign) is anything under 40 km/h
- When in the closest lane to a stopped roadside vehicle with flashing lights, move over safely. If you cannot, slow to 60 km/h or the posted limit, whichever is lower. This includes maintenance vehicles; speeding fines are doubled.
- School zones: in effect on school days only, in three windows — 8:00–9:30am, 11:30am–1:30pm (the one people forget), and 3:00–4:30pm; passing is prohibited while in effect. Municipalities may post different times or limits; read the signs.
- Playground zones: in effect every day, including weekends, from 8:30am to one hour after sunset; passing is prohibited while in effect. Municipalities may post different times or limits; read the signs.
- A flashing yellow pedestrian/school-zone warning light also means slow to 30 km/h and yield to pedestrians
Knowledge points and examples
School, playground, and construction-area signs, hours, speeds, and worker controls
Construction zone speed limits must be obeyed:
Construction zone speed limits must be obeyed at all times.
Unless local signs state different times, when are Alberta school-zone limits in effect on school days?
The standard school-zone periods are 8:00-9:30 AM, 11:30 AM-1:30 PM, and 3:00-4:30 PM on school days, unless a municipality posts different times.
Default or posted limits and selecting a lawful speed for actual conditions
Unless otherwise posted, what is the basic speed limit outside a city, town or village on a primary highway?
The default speed limit on primary highways outside municipalities in Alberta is 100 km/h unless a different limit is posted.
Speed limit signs indicate:
Speed limits indicate the maximum speed under favourable conditions.
Check your understanding
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