I haven't had time tonight to comment fully on this, but there are a few things I want to say.
It's not bike vs. cars - it's about how they work well together. Bike don't only belong on trails, they are methods of transportation and not just an activity.
We need to make the approach to a middle school MUCH more approachable for the students who attend. East Bidwell is fairly useless, as is Riley, so that leaves only two small streets as somewhat reasonable approaches to the school. We owe it to the students to make their school safely accessible to them, whether they arrive on foot, on bike, on bus or via auto.
Additionally, Bidwell is a very unfriendly street in the area in question and definitely could use improvement. There is nothing about a four lane street with a middle divide that means that's better for the businesses that flank it. (Five lanes? What kind of traffic needs this many lanes?) No bikes, no pedestrians and streets only designed to drive traffic through the district instead of for the district.
Cutting down lanes doesn't mean that all of a sudden you'll see back ups and more residential traffic. I see all four lanes full down by Blue Ravine, but never in the area in question.
Cars do not trump everything else. Let's figure out a way to integrate traffic, school drop off, pedestrian use, vehicle use and better methods of traffic control (roundabouts vs lights).