Submitted by Milan, who says:

I’m from Germany and wanted to share this map of my hometown’s streetcar/light rail system I created this week. I wanted to share it with you before my thirteenth birthday, which is tomorrow (October 12). Greetings from Potsdam.

Happy birthday, Milan! It’s just about to roll over to the 12th here in Portland, Oregon, so I hope you’re having a great day! 

I really like your map, which reminds me a lot of this prototype radial map of Berlin by famed German designer, Erik Spiekermann (August 2013), as well as the many radial maps by Maxwell Roberts. I especially find your treatments of the rivers and lakes interesting, as they get wider the further out from the centre they get –faithfully following the “spokes” of the radial grid. This could look a little weird if done poorly, but i think your representation actually works very nicely.

Inclusion of the S7 from Berlin and the red regional train lines are also a welcome addition to the map. If you were to develop this map further, a legend explaining the different services and lines on the map would be a good idea. Overall though, this is a fantastic effort, precisely drawn and well thought out: great work!