Question on train signal clasifications?
Answers:
It seems that what you are asking about are train reporting numbers or "Headcodes" as they are more commonly known. Basicly this is a 6 figure code, but drivers and signallers only use the last 4 digits these being for example "1C22". 1 designates that this train is an express or fast service, C indicates the route that the train is taking and 22 is the trains number, i.e. it's the 22nd that day over that route.
Class 2 trains are normally local stopping trains, Class 4 are fast freight ("Freightliner" Container trains etc) Class 5 trains are usually empty passenger trains. Class 6 and 7 are mostly engineers trains.
Out of interest 1X01 is the headcode for the royal train.
If you check on Network Rail's website, and look in the rulebook section, there is a full explanation of train headcodes.
i work for the railway and know that a signal is a signal.period, there are no priority's involved at all as humans cant be classed in order of preference so hes talkin out of his hole!
Yes, I think there's a bit of confusion creeping in here - as has been said, a signal is a signal, and invariably trains run to a timetable whether they be the Royal Train or a humble shunting loco on its way back to a depot, so there's no such thing as a 'class' of signal.
There ARE classes of trains - like what is nowadays the high speed train (the old "Express" services), right down to the single-carriage 'train' running on a country branch line or freight trains anywhere, but none takes priority at a junction unless it would mean putting a fast train (an inter-city express for instance) behind a slow one stopping at every station, and that would just be (very!) bad practise and is normally avoided in the timetable for very good operational reasons.
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