Pacers don’t have bogies and yet the document effectively states that everything that runs on the railway should have bogies, which is true, but due to the misguided existence of the Pacers and the insistence in the 1980s that no better quality vehicles were to be built, had to make an exception for them.
If such a thing exists that is of such poor quality to not even constitute being a “vehicle” then it would have to be considerably worse than any 4 wheeled Pacer, which while just about able to qualify as “vehicles” cannot claim to be “bogie vehicles” which all rail vehicles should be.
I put to you this. If you were to build a simple frame and attach to it plain flat blocks similar to the ones visible in the attached image, but with the addition of flanges to allow it to sit stationary on rails without detailing and then coupled it to a locomotive and dragged it to another location (presumably causing significant damage to the track in the process) would it be able to call itself a “vehicle” despite not being “wheeled” if that is one of the criteria or even having any moving parts?
1. No it doesn't.
2. No it isn't.
3. Those of us who worked for Regional Railways recognise the role Pacers played in keeping the business in existence.
4. Saying it again doesn't make it any more correct.
5. You would be wasting everybody's time, including your own.
The Pacers were crucial at the time in order to replace life-expired first generation DMUs at low cost. In turn they allowed RR to order the various Sprinters which were a significant upgrade. That we still have rail services to certain rural locations is in part due to the Pacers.
And they are, quite clearly, railway vehicles.
I can’t recall seeing a freight wagon without bogies recently.
There was a whole train of them standing in Crewe station on Monday loaded with ballast.
Wagon types MKA, MEA, MHA, MPA, MTA are all 4 wheelers (that's about 1,350 wagons).
20 FPA container wagons.
80 SSA scrap wagons and 80 CDA hoppers.
Then there are c.270 OBA/OCA open goods wagons.
etc.
And that's just in the British series - also plenty of international 4 wheelers that operate in the UK.
And again they are, quite clearly, railway vehicles.