vic
Senior Member
Ottawa has one, eastbound on the McKenzie King bridge at Waller St. It gives cyclists an advanced green to get through the intersection. It's a weird situation where the right lane is the Transitway (bus only), middle lane is normal, and the bike lane is on the left. When the bike light turns green, cyclists can go through and move back to the right, and cut over to the Stewart St. contra-flow bike lane.
http://maps.google.ca/maps?q=MacKenzie+King+and+Waller,+Ottawa
Can't see the light in this photo, but it's at the far end of this bridge:
http://www.robink.ca/blog/wp-content/uploads/2007/07/sunrise1b.jpg
There are plenty of bike-activated lights in Vancouver too, but it's more of a case of cyclists being able to easily activate regular traffic lights by pushing a button.