I just want the TTC to have iron clad fare enforcement. Do that and you automatically increase the sense of safety and order for the paying passengers. I expect a good portion of the muttering, shouting, flaying, sleeping, stabbing, pushing and incinerating among us have not paid their fare. Stop them at the gate, NOT on the system. When I was a young adult in the 1980s you had to board at the front, and the driver ensured you'd paid. I well recall drivers in the 1980s stopping the bus until someone who hadn't paid, did so or got off. My grandad was a London bus driver and even as a young lad I remember him and the fare collector taking no sh#t from the drunks or vagrants who shirked their fares - mind, Grandad was a combat vet, as were many.
The POP system and all doors boarding on the streetcars (and often buses) has sped up boarding, but it came at the same time as the polite, law-abiding society that was Canada was changing to the meaner, take what you can society, beset with addiction and mental illness issues that we have today. Imagine if Loblaws had a POP system - take the food you want, and there's a 0-1% chance anyone will challenge you at the door - the place would be empty in a day. To my mind, the fare collection has two jobs - one to fund the system, the other to keep out those who will not pay. That's why I love taking my family to the Toronto Islands - you know that everyone you see enjoying the day paid to get onto that ferry, which automatically filters out the junkies and insane that make us feel unsafe - instead the islands are like a city park from the 1970s or 80s, with families have fun, letting their guard down.
TTC, enforce the fares so that none shall pass. That's what it will take to return a sense of safety to your paying customers.