>>1223119Compare it to other Category 1 train stations in Germany, and I think the width is pretty normal.
I don't have any pictures, but they're about the same with as say Düsseldorf Hbf, Köln Hbf, Augsburg Hbf, and the elevated platforms at Berlin Hbf and Dresden Hbf.
The wider sort of platform, is really only something I've seen in Leipzig Hbf, München Hbf, Berlin Südkreuz, the underground platforms at Berlin Hbf and Berlin Gesundbrunnen.