Basically planning train itineraries for people with minimal-stress transfers, late departure times, and so on
@joepie91 I am usually annoyed when planning apps take a far too large margin for transfers :P
@joepie91 as in, "no need to hurry, you have 15 minutes". But if you walked directly you could have caught an earlier transfer.
(I may or may not have a project on the shelf for a public transport planner)