Just something small I threw together for Airpatrol.
Here is the logo of the Deutsche Bahn (German Railway) in 2060. For comparison, the old (1955 to 1994) and the current (since 1994) logo are next to it. I tried to refine the current logo by turning the letters D and B and the frame into a looped line. A nice effect of that is that it reminds in a cut through of a monorail track with the car clamped around it. You can already see this logo on the S-Bahn train in the epiloge of chapter 4.