I'm anxious to see the Main Streets detailed design drawings, which are supposed to be complete by this spring. I'm hopeful that there will be funding to proceed with (at least the first phase of) construction, although I'm worried that this would be low hanging fruit if there are budget cuts. It would be a shame if the Main Streets construction was delayed on 33/34 Ave SW and 1 Ave NE, which personally, I think should have been prioritized over the Main Streets currently under construction (although I'm biased because I live in Marda Loop and love Bridgeland).
Regarding traffic on 33rd (and 34th), there's definitely a need for traffic calming, but also a need to improve traffic flow.
If the City actually moves forward with the Main Streets construction, the narrower road surface and curb extensions should help with traffic calming. I'd still like to see the speed limit reduced on 33/34 to 40 km. There's really no need to be able to drive 50 km on 33/34, and it's generally too busy to do so safely anyways.
Although curb extensions won't be ideal for traffic flow (because it will prohibit drivers from passing vehicles turning left), I do think those drawbacks are far outweighed by the improvements to pedestrian safety, traffic safety (they should reduce blind spots at intersections currently caused by cars parked way to close to intersections in the area).
Regarding traffic flow, I think parking should be prohibited from the areas immediately adjacent to the intersections on 33rd Ave at 20th St and 22nd St. At these intersections, I think a left turn lane could actually be created (with advance signals), and through (and right turning) traffic could be diverted towards the curb where parking currently exists. This already occurs on a defacto basis, where people go around cars turning left, but I think the City could actually paint lines to create left turn lanes and to direct through traffic around to improve flow at the busiest intersections. Advanced left turn signals in both directions would also help of course.