So people are billed based on an assignment of guilt made by a computer? Lovely. Absolutely no way that could go wrong.

/s

Don’t get me wrong in theory that would be great. Reliably holding people causing delays in public transport responsible would be fantastic.
But I don’t know if the percentage of people doing it out of negligence or ill will is high enough to justify such a measure. Some may be simply unaware, so better marking/signage may be sufficient. For some it may be beyond their control. I’m not convinced a machine learning system can achieve satisfying sensitivity and specificity in determining the actual culprit.
That’s not even looking at the can of worms that the legal situation of such a system might be.