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Express services on shared track isn't common on metro systems. NYC's express subways all use dedicated track, for instance. The tendency to not keep to a stric
by brainwad 5y ago
Express services on shared track isn't common on metro systems. NYC's express subways all use dedicated track, for instance. The tendency to not keep to a strict timetable and the close-running of metro systems makes it hard to slot express trains into gaps between local trains properly.
- traceroute66 5y ago> The tendency to not keep to a strict timetable and the close-running of metro systems makes it hard to slot express trains into gaps between local trains properly. To be fair, "close-running" is not a word that tends to be associated with the District line ... "signal failure" is, however ! ;-)
- Symbiote 5y agoThe central section (including the Circle Line) has a service interval of 2-2½ minutes, depending on the time of day. The rest has roughly 2-10 minute intervals.
- zhte415 5y agoTrivia. The timetable, or Working Table, for all London Underground train movements is here https://tfl.gov.uk/corporate/publications-and-reports/working-timetables https://tfl.gov.uk/corporate/publications-and-reports/workin...
- nicoburns 5y agoCrazy that the time between trains is measured in seconds
- marcinzm 5y agoEven with a strict timetable you need extra spacing between trains and potentially slowdowns to allow passing to be done properly. These systems on busy lines tend to run trains as close to each other as possible without causing safety issues so there's no buffer room. And if something goes wrong for any reason the whole system starts getting cascading delays.