I have designed a pedestrian bridge to go over the Main Ave. RR tracks. It would be an arch shape with two separated lanes one for pedestrians and the other for wheelchairs, walkers, handicapped scooters. It would have a ramp for bicycles and roller blades, however, there would be turn styles to prevent them from using them on the bridge. They can walk their bicycles but the turnstiles would prevent rollerblades from gaining any amount of speed.
There also would be an elevator for the handicapped and senior citizens.

This bridge would start on the empty grassy mall south of the RR tracks and end in the empty space north of the tracks.

It would look similar to the pedestrian bridge over I-94.
Only this would be enclosed and heated and air conditioned, like the sky ways.

It is too bad I can not post my drawing of this bridge on this site.

One of my suggestions is for one to be able to post their pictures of their ideas on this site. I would like to show off my idea.