Plan to cut journey times between major cities could reduce Berlin-Copenhagen trip from seven to four hours Plan to cut journey times between major cities could reduce Berlin-Copenhagen trip from seven to four hours Breakfast in Berlin, lunch in Copenhagen, with a fast and easy train journey to pass the morning? Or a midday meal in Sofia, then taking the high-speed line to arrive in Athens just in time for an evening aperitif? Both could be possible if a vision for European high-speed rail