To get things back on topic, I thought it would be useful to make the discussion of opening Portage & Main to pedestrians a bit more concrete.
Here is Portage & Main:
The image below shows the current three signal phases at the intersection. No other turns are permitted, and right turns are banned on a red signal in all directions.
- Phase 1: eastbound/westbound, plus right turns
- Phase 2: the crucial turns between North Main and West Portage in both directions, plus continued eastbound flow
- Phase 3: northbound/southbound, plus right turns
The study that the city is currently conducting is considering opening either
three or four pedestrian crossings. I'm going to suggest that opening the following
three crossings (i.e. all but the west side crossing) would have a negligible impact on traffic:
Pedestrian movements at these three crossings can easily fit into the existing traffic signal phases, as shown in the following image.
- Phase 1: pedestrian crossing on north and south sides (conflicts with right-turning traffic, but these right-turn traffic flows are not huge, and the southwest right turn continues in phase 2)
- Phase 2: pedestrian crossing on south side continues, or alternatively there could be no crossing at all in this phase, to allow free movement of right turning traffic
- Phase 3: pedestrian crossing on east side (conflicts only with the northbound-to-eastbound right turn, not important)
I don't see this causing a traffic armageddon at all. In particular, the crucial turns from North Main to West Portage remain completely unimpeded.
Opening the west-side crossing would disrupt these turns, but I think it's OK to leave this crossing closed to pedestrians, as the crossing at Portage & Fort is a good alternative: it's very close and thanks to the plaza at 201 Portage it already feels like an extension of Portage & Main.
Thoughts?