(21 Apr 2020, 11:12 am)JP6004 wrote Well recordings for people buy ticket to hospital would of been available I would suspect. Along with general observations from drivers etc

You're relying on humans there though. Ensuring they're selecting the correct stops/fare stages and are passing on accurate info/observations. 

Stressed, running late, not giving a toss. Three every day reasons why the information may be wrong or inaccurate

When Beeching wielded his axe to the railways, there was all sorts of queries about the accuracy of the data used. Still is now.