My suggestions for cracking down on fare evasion are mainly staff related and adjusting the rule book where possible so that ticket checks/selling can be done more. I know that I and my family have done many journeys where we have questioned why do we buy tickets for some train journeys since most of the time, there are no checks at stations or onboard. Always bought a ticket still but it's easy to see how some people get the mentality that there are no checks so why does it matter.
I think firstly, there are issues where people know what times gates open and close. Why can't we have more remote monitoring of gates. I think while it is important to staff the gates 90% of the time to solve issues, at quieter times, why can't ticket offices and dispatchers keep an eye out over the ticket gates. Yes people will still chance it but it is a deterrent (in the same way which we put fences along the railway. It doesn't stop all trespassers but it's a big deterrent to most of the population). You know, even if the gates were set as shut and to accept all tickets irrespective of validity, having the barriers shut and you have to present a ticket, it's a deterrant as people then worry about putting an invalid ticket into the barriers and getting staff over. Not 100% foolproof but it's about making people think.
Secondly, I think that it would be good to stop ordering trains without gangways. While the big windscreen is good for drivers, it's not good for onboard security or ticket checks since when trains run in multiples, a guard can only be in one portion of the train. This often leads to people seeing a guard and using the other unit knowing that unless the guard moves between stations (which is unlikely and I will come onto my next point), they will have no ticket checks.
Thirdly is enabling guards to dispatch from more doors. I think it's probably a safety thing but it's strange how some companies guards can dispatch from any door but other TOCs, it's rear only. The 'rear only' guard means that guards can't get far far into a train to check tickets before returning to the rear cab to do the doors. When a guard does go into the train, they have to be very time concious. I've been on a few trains where the train stops and the guard is still taking payment for a ticket (in the front carriage) meaning they they to do that, then go to the back and sort the doors. Overall, the train becomes late. Late trains are no good and nor are ticketless travellers. By allowing guards to control the doors at more door sets, means guards will have more confidence going through the train, they can do as Merseyrail guards do about 1/2-2/3rds of a carriage between each station stop, moving slowly up the train and not having to walk the length of the train 300 times to do the doors and then return to where they left off for the ticket checks.
Adding to that, I think it would be good to start having more ticket barriers out there. The majority of the rail network has no barriers. Even stations with staff, have no barriers or ticket checks. I know barriers cost money but there surely has to be a way to get barriers cheaper.
I think that it's a bit of a reluctance to install them to be honest. Look at how Network Rail were at Liverpool and Manchester, they had the rotary barriers on the toilet entrances long before they put in revenue protection barriers. Too busy trying to get money off people needing to empty their bladder rather than protecting the revenue which gives them money to make improvements to the network.
On the subject of cost for ticket barriers, the Office of Rail and Road did a study into them and found that Cubic has a monopoly on them and no competition and they wanted to intervene. What has happened since, I don't know as I can't see anything but the documents can all be found here:
https://www.orr.gov.uk/monitoring-r...atic-ticket-gates-and-ticket-vending-machines