@Gina there is, as always, no easy answer and no easy fix. a) we are a "hub" country aka "junction" in Europe since the beginning of time (cp the many wars since the middle ages) - a trillion external effects from neighbouring countries which moght cause delays (UK ans Japan are islands ...) b) there are some geographical specialties aka bottlenecks in very populated and top business areas along the rhine (solutions known c) we are no 3 GDP country with very solid environmental, participations laws (which i am proud of). Things take time. E.g. BER MUC high speed train.