Does it? At least for me, the image is heavily pixelated.
Are we talking about the less-colorful area on the left?
Current official map as vector pdf (0.2 MB): https://www.bvg.de/dam/jcr:d45105f2-6752-4ec5-b882-8936572053c3/TramMetro_08_2024-Internetversion 1.pdf
High resolution png from the pdf (3.5 MB):
East Berlin had trams, West Berlin had double decker buses. The doubledeckers can’t pass safely below the wires of the tram, so if you see a tram you are in former east Berlin, but if you see a doubledecker you are in former west. At least that’s what my friend told me years ago who lived in Berlin for some years. Can someone confirm this? I can’t find any info on this on the internet.
That might have been the case at some point, but I have definitely been on a doubledecker bus that’s crossing Tram lines in east Berlin.
As an east Berliner we have trams and no double deckers, but I have only seen double deckers near the center of the city.
I can’t remember seeing them in the places with trams, but I don’t see them much at all. This is my limited observation, as I don’t use busses as much as trains and don’t know the west as well as the east.If you really care I can cycle out (in?) on the weekend and check.
Edit: added my bias
The West adopted the goal of a prosperous population of car-owning motorists and dismantled their tramway system as the US did. The communists kept public transport as a norm (they had the Trabant, but it was mostly a showpiece, out of reach of the average citizen). Some time after the wall fell, opinion in the west shifted in favour of reestablishing tram networks (the Grüne party had a campaign in Berlin with activists pedalling “trams” made of bicycles in areas they wanted the tram routes extended to.
