Somewhat related/shameless self-plug: I created an R package [1] that provides data on travel times between NYC subway stops. These data can be used to, e.g., v

Somewhat related/shameless self-plug: I created an R package [1] that provides data on travel times between NYC subway stops. These data can be used to, e.g., visualise and analyse the subway network [2]. [1]: https://github.com/bldavies/nyctrains https://github.com/bldavies/nyctrains [2]: http://bldavies.com/blog/how-central-grand-central-terminal/ http://bldavies.com/blog/how-central-grand-central-terminal/