>I don't know how they plan to continue to provide access for disabled users.

The same way both Philadelphia and Camden already do, by just assuming nobody will care. I'm sure if you asked they would say something like "well, why would a disabled person be on the walkway? Wouldn't it be easier for them to just drive across?"

Same goes for bikes. Bikes, pedestrians and wheelchairs are expected to just stop existing anywhere it would be inconvenient for them to be.