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To put this a bit into perspective: long-distance trains in Germany typically travel for at least half a day. "Long-distance" trains in Switzerland can be compared to regional lines in Germany (the country simply isn't that large, and the majority of rail travel in Switzerland happens between Zurich/Olten/Berne/Basel, which are all within 100 km of each other). The likelihood of anything going wrong during a 1:30h train journey from Zurich to Basel is simply much lower than during a 10 hour train journey from Kiel to Freiburg. 3 minutes delay on a 1:30h train journey is a delay of 3.3%, 15 mins delay on a 10 hour train journey is a delay of 2.5%. The reason regional trains are also delayed is that regional lines, local lines, long distance lines and freight trains are typically using the same tracks in Germany, and delayed long distance trains always get higher priority. A typical situation is that your regional train is perfectly on time, but suddenly stops, and waits for 5-10 minutes for a delayed long-distance train to overtake it. Switzerland has a similar mixed system, but as noted above, does not really have long-distance rail lines, apart from the trains that enter from Italy, Austria, France and Germany, which is the main reason why these trains are not allowed to enter if delayed. This is in contrast to the system in France, where TGV lines typically have dedicated high-speed tracks, where all trains on it travel more or less at the same speed. Shouldn't you then add redundancy to the system by having time buffers at large stops every 2-3 hours? Or even let replacement trains start at intermediate stops as soon as the delay of the regular train is greater than X to avoid propagation of the delay into to rest of the network? Absolutely, but most stations and rail lines in Germany are either at their operational limit, or above. Having a train wait for 15 minutes in a large station just in case it is delayed would block that track for 15 minutes in the majority of cases, when the train is punctual. Also, DB simply has not enough rolling material to start replacement trains, and the rail infrastructure to even park such trains has largely been dismantled in the years after the privatization (they are doing it sometimes, but not very often). |