That is rather unfair to say that some drivers don't programme the PIDS on trains. I don't know any drivers who simply don't bother. There are numerous trains which have faulty PID systems which just won't work, others which drop out half way through the journey and especially in the rush hour with unusual stopping patterns there are no codes to programme in and therefore you can't switch the system on. Plus at weekends on 365s when there are engineering works and diversions round the Hertford you can't use them as the wheel rotations are greater which confuses the system and switches it off. The same can happen with the flyover at hitchin as there are more wheel rotations that way and so it causes the system to switch itself off around baldock.
To say some drivers don't actually programme it isn't true and is a rather accusational comment to make without knowing why many 365 and 317 trains actually don't have the PIDS functioning.
Okay, so if the system is broken then fair enough and I apologise (although I'm sure you don't know every driver and it has happened!) - but to the passenger, the reason doesn't matter. The reality is that there's a blank display and no audible announcements.
That just takes me back to my original point, that it should be treated as more important than it is.
Now, I wouldn't go so far as to say you take a train out of service because the PIS isn't working BUT I would say that it would be logged and have to be fixed within a certain timeframe, and perhaps if it isn't fixed then the TOC (or ROSCO, or whoever is responsible) is fined daily until it IS fixed. I bet minds would be more focussed if there was some sort of financial penalty.
Now I know that some companies have bought systems and then the company concerned has gone out of business or stopped supporting it - but that's a problem that isn't of any concern to you (the driver) or me (the passenger).
I am merely talking about a way to say the basics, like the next stop or where the train currently is. Even the safety announcements are rather silly and could possibly be done away with when they'll only be given at the start of the service, not along the way (I know some systems do this, but most don't and drivers certainly won't).
Given they're only provided in written form, I'd even go as far to say that it's less useful as those who aren't visually impaired could simply see better marked posters and signs (e.g. notes on seat backs or on the windows) and not need a spoken message.
Wheel rotations seems like a really bad way to do train positioning to me, and it's clear that it does indeed have issues. Is there any real reason why they couldn't have used GPS? GPS modules are cheap, accurate and robust to alternative, longer routes being taken, or wheel slip, or whatever.
I really hope the 365s will get a new system fitted that works properly in that regard, as well as being able to convey more useful information. I thought this was happening with the current refresh work, where CCTV is also added (another thing that's long overdue).
I mean, yes, there are lots of extra announcements that only a handful of drivers ever use (including one famous driver that seemed to use as many as possible - from keeping bags of seats to learning how to deal with the hustle alarm), but it must be too difficult to activate them. I'd say that 99% of my trips on a 365 don't have any extra announcements made, unless the driver says something him/herself.