[schroth-sensei]

Hello Amy,
If you’re worried about moving quickly or getting lost at a train station, renting a motorized wheelchair could be a solution for you. Getting across the crossing in my wheelchair wasn’t a problem and I didn’t feel rushed to cross either, and at train stations you’ll get so much help getting to your train in a wheelchair that getting lost won’t be a concern.

Also, if you decide against using a wheelchair, I don’t know if you use crutches or a walker (possible option if not), but the majority of stations do have elevators you can use anyway to save your knees from the stairs.

As for crowds, it’s recommended to avoid morning and evening rush hour whenever possible. Some of the trains, especially busy stations like those on the Yamanote loop, can be quite packed with people during this time.

I hope that helps,
-Justin