Well, in Canada it seems to be an extra feature you have to specially order as none of the cars I've seen on the road seem to have any. Apart from the rentals I've been driving and the cars my friends own that I drive too.

But I haven't seen them on other vehicles.

It's like hazard lights that blink only it blinks on one side at a time to indicate which directin you're going or if you're changing lane.

(No wonder there are so many accidents on the DVP every morning)