[bmomb]

Do you really need to track every time that each individual move to do that?

[abandonliberty]

What alternative measures would you propose for tracking volumes and trips?

[mseebach]

Track the fact that a journey took place, but not who took it.

[tikkabhuna]

The organisation that runs the Tube in London, TFL, did a project[0] where they tracked the path people took by their phone's WiFi signal (all anonymised). This was used to see what routes were preferred and how they could be optimised. Previously all they had was entry/exit data.

[0] https://tfl.gov.uk/info-for/media/press-releases/2017/septem...