John Pfaff wrote:
>
> During a recent trip to Canada, I couldn't figure out why the green lamp was
> flashing for the first several seconds after switching from red to green.
> It turns out that is a signal that it is OK to make a left turn, opposing
> traffic still has a red signal; much like a green left turn arrow.

Tourists beware!  This is a generalization - every Canadian city I lived
in does something different.  Vertical lights, horizontal lights,
flashing amber (gives a little extra warning so that you speed up to
make the light)...

The only variation on left turn signals that I *haven't* seen is the one
John mentions.

--Matt