I think the only legal way to keep people from suing you is to make them sign a waiver or form of TOS document.
If it turns out that, 6 or so months down the road, UTA cops aren't policing this new law, then I will concede the fact this move was only made to cover their asses for lawsuits. Until then, I'm going to retain my right to be cynical and assume that this is just another in a long line of ways for UTA to make a profit off of it's passengers.
I used Trax to commute every day for the past year, and the majority of incidents that I heard about or that directly affected my commute were collisions with vehicles, not people.
All we really need is a couple of concepts. Right of way goes to the train, no exceptions. And Franklin's handrails at the stations.
The distracted walking fines, like SLC idling ordinances, are do-gooder nannyism and will barely feed the "hall monitors" and personnel required to enforce them.
Still from an insurance agent's perspective, this is how insurance companies keep winning. Insure us at yesterday's mortality statistics while doing everything to make the government keep us from killing ourselves "by accident". If the insurance companies had their way, we'd all be living in plastic bubbles and never allowed to touch reality.