Originally Posted by
TRaffic Jammer
The markings are traffic signs mounted right beside the actual traffic light if memory serves correct.
For the out-of-towners who'd rather not visit:
http://toronto.virtualcity.ca/
Just scroll up to any intersection and drop the little X on for a selection of unnecessarily high-resolution images.
The interface is a bit hard to use, as the X doesn't 'snap' to the roads very well.