In British Columbia, the speed limit is defined as the maximum speed limit when the road is bare and dry and visibility is good. From the driver's guidebook[1]:

In British Columbia, the speed limit is defined as the maximum speed limit when the road is bare and dry and visibility is good. From the driver's guidebook[1]: >Aim for a speed that’s appropriate for the conditions in which you are driving. The posted speed is the maximum for ideal conditions only. Choose a slower speed if the conditions are not ideal — for instance, if the roads are slippery or visibility is limited. If a driver was driving too fast to react and stop without hitting that deer, then that driver was driving too quickly. [1] http://www.icbc.com/driver-licensing/driving-guides/Pages/Learn-to-Drive-Smart.aspx http://www.icbc.com/driver-licensing/driving-guides/Pages/Le...