Incorrect - It is also permissable from a two-way onto a one-way.

http://www.alberni.ca/modules/soapbo...p?articleID=77

http://www.qp.gov.bc.ca/statreg/stat/M/96318_03.htm

129 (4) (b) [snip] the driver of a vehicle facing the red light at the intersection of not more than 2 highways, [snip] may cause the vehicle to make a left turn into a highway on which traffic is restricted to the direction in which he or she causes the vehicle to turn, but the driver must yield the right of way to all pedestrians and vehicles lawfully proceeding as directed by the signal at the intersection [snip]

However it's a pretty rare situation so I doubt most visitors have to worry about it.

Cheers,
Geoff Glave
Vancouver, Canada