The London Tube Heartbeat
tubeheartbeat.com
tubeheartbeat.com
I was surprised by the number of exits late at night at Heathrow T5, I guess it's all staff arriving for nightshifts, as there aren't many turning up to get planes at that time (last flight is 2240, meaning the latest you can enter security is 2205, meaning that you need to be off the tube at 2200 at the latest, and I doubt many risk cutting it that close)
All three Heathrow stations have many entries in the late evening, which will be people arriving on flights. They don't have many exits.
This detail probably doesn't matter for this nice visualization, but ... do you have details on how this data is attributed to specific lines? For example, District and Circle have such an overlap, and the changes in Circle appear proportional to changes in District. I personally have intended to take a Circle train but because District overlaps and is headed where I need to go, I'll just take whatever comes along next.
Many of Amersham's morning commuters board the (faster) National Rail service, even though (unusually for the tube) the Metropolitan line has express and semi-stopping services at peak times to catch up some of the difference.
Only way to work it out would be specific data (like axel weights), which may be whats generating the data sets.
A few suggestions that might be nice:
- show entry + exit down to 5min and maybe even 1 min intervals if that data is available.
- make it so I can filter lines I am interested in (e.g clicking on the colour bars at the top to toggle on/off) - in zone 1 its pretty hard to see what is going on without zooming riiiiight the way in, but then you miss the "bigger picture".