Highway minimum speed limit

[Thuja]

You`re right Betrivent, I have seen those signs on a freeway or two in BC; but I only remember seeing them near the coast and I personally live in the `Kootenays`. I was referring in my post specifically about Section 145 of the Motor Vehicle Act of BC which states:
145 (1) A person must not drive a motor vehicle at so slow a speed as to impede or block the normal and reasonable movement of traffic, except when reduced speed is necessary for safe operation or in compliance with law.

(2) If the driver of a motor vehicle is driving at so slow a speed as to impede or block the normal and reasonable movement of traffic, a peace officer may require the driver to increase his or her speed, or to remove the motor vehicle from the roadway to the nearest suitable place and to refrain from causing or allowing the motor vehicle to move from that place until directed to do so by a peace officer.