>>1604499Having a gap in a "ring line" sounds retarded alright. Any idea why they might be doing that?
>Do tell me more about that timetable system though, I've never heard of it being special.Keyword: "Integraler Taktfahrplan" (ITF)
I only know the German terminology, so no idea, if the English words I use here match that.
It's heavily optimized towards transfers.
In the Netherlands you have hubs in which trains and buses arrive and depart around the same time. That is facilitated by the time tables being symmetric to a certain minute. I think in NL it was minute 59, but it can be any minute.
Hourly services on the same line always meet at 29 and 59. Once you have a 30 minute frequency, they also meet at 14 and 44, and so on...
You now shift the services, so they are in a hub during those minutes, and since now all services are in a hub during those minutes, transfers are created automatically without much manual tinkering.
Two things are critical in a system like that: Hub capacity and the "edge length" between hubs/vertices.