How about this suggestion, from one ex-Navy man to another? Tuck Yew, you can really Tuck up those errant public transport operators by BANNING FARE INCREASES, in lieu of fines. How's a six-month BAN ON FARE INCREASE sound? Not much, to irate commuters. But imagine the ban duration stacking up. Soon, it could be YEARS before they are allowed to increase fares. I'd imagine that to be way more effective than fines, which I assume would get passed on to commuters in the next fare hike.