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Show HN: Tube Map Live for iOS
- kokey 13y agoWow, I knew they rolled out some access to countdown from the ibus system, but I thought hell would freeze over before they'll allow people to track tube locations.
- 10dpd 13y agoIts probably not the actual location of the tube, but a guestimate based on the departure time, arrival time and the distance between stations.
- diroussel 13y agoIt depends on the line. The more modern lines, have induction loops every 3 meters that allow precise measurement of current position, and also data for voice comms to the line controller. On older lines, they can only detect when a tube changes power circuit and the resulting blue/white spark sends a measurable pulse down the power system. In this case, yes, they have to just count trains into and out of a section. I learnt this by chatting to a TFL engineer in a pub, he designed the signalling systems equipment.
- kosei 13y agoUsed the tube map app while visiting London and it was incredibly helpful. Great to see this new improvement.
- staticfish 13y agoI made something similar for Philadelphia https://play.google.com/store/apps/details?id=com.staticfish.septainstant&hl=en https://play.google.com/store/apps/details?id=com.staticfish...
- diroussel 13y agoVery cool. Free app tried, paid app bought!