Line 4
Line 4 or subway line 4 stands for the following railway lines:
in Germany:
- Subway line 4 (Berlin)
- Underground line 4 (Hamburg)
- Underground line 4 in Frankfurt, see underground line B (Frankfurt am Main)
- Subway line 4 in Munich, see trunk line 3 (Munich subway) # U4
in France:
in Austria:
- Line 4 in Innsbruck, see local train Innsbruck – Hall in Tirol
- Subway line 4 (Vienna)
in Russia:
- Line 4 of the Moscow Metro, see Filjovskaya Line
- Line 4 (Saint Petersburg Metro)
in Spain:
in Hungary:
