We have been riding mostly the S-Bahns, which are above-ground regional rails. (The U-Bahns are subways, the trams are local street-level, the Deutsche Bahn are nationwide.). The S-Bahns cars have a small gap between the car and the platform, reasonably easily handled by my scooter, so they don't require any special effort to ride. The trains are long, with cars at both ends marked with wheelchair symbols. Coming home from the zoo yesterday we were right in the middle of the train when it stopped, and it looked do-able, so we just got on. The car was similar to the wheelchair ones -- no folding seats to make a wheelchair space, but I hadn't been using those anyhow. Fine. Then we got to our stop, and the gap to the platform was much wider; wide enough that I thought my front wheel could get caught. So I got off, and Dave, Isaac and a helpful passenger got the scooter off. Back on the platform, I noticed that our station is...