I attempted to do something like this for Lisbon's metro but unfortunately never managed to get it working well enough (due to my own skill shortcomings). The

I attempted to do something like this for Lisbon's metro but unfortunately never managed to get it working well enough (due to my own skill shortcomings). The data available is the waiting time for each train ID per station, with infrequent updates and very non linear behaviour. If anyone has tips to turn this into a linear movement along a line I'd be very interested.