I may have missed this as I glanced over the conversation about far-side boarding, but if a streetcar goes through an intersection and stops to pick-up/let off passengers, won't all the cars behind following block the intersection as the light turns red as they wait for the streetcar doors to close?
Of course, common sense dictates that a driver wouldn't follow a streetcar into the intersection, but 1) This is Toronto drivers we are talking about, and 2) if the streetcar doesn't stop, you're just holding up traffic longer than it already is.