I can only give you information about what is currently going on - It may be subject change.
This is a run down of a Heavy Haul Rail Train driver job out of Mendip.
Pay:
The end pay will be £70,000. You will have 3 months on a reduced wage (circa 21,000) while you are in the classroom. It will increase slightly after classroom (while you are doing your handling hours). Handling hours could take up to 1 year to complete depending on mentor availability. You may have to do your classroom and some of your driving hours elsewhere (North East, London, etc) if they do not have enough mentors at your location. You won't get the full £70k salary unless you have completed classroom training, done your 250 hours (with assessments at intervals) and signed your first route.
Driving Hours:
You will need to do 250 hours of "wheels turning" driving. It does not include any hours if you are sitting in a loop - but still being paid.
Location:
Out of Mendip there are 2 main quarries. Merehead and Whatley. The bulk of traffic comes out of these. There are others in the area such as Machen and Tytherington, but for the purposes of your employment it will mainly be Merehead and Whatley.
Routes:
Initially your first route will be local, like Merehead/ Whatley to Westbury and maybe the odd local yard. They will then leave you alone for a bit. As you accure time within the company you will get to sign further places like Wooten Basset, Eastleigh, etc. The radius gets bigger. A large amount of Mendip traffic is destined for London, eventually you may learn up to Acton Main Line on the GWML. These are the jumbo trains that are often formed of two engines and ~40 wagons. The train will reach Hanwell or Southall and will be split in half and a ~20 wagon train will go to one London location, the other train to another. You will only take them as far as Hanwell, Southall or Acton - to then get relief.
Holidays/ Days off:
The quarries (at present) do not work bank holidays or much of the weekends and have a two week shutdown over Christmas and new year, but it is a 24 hour operation throughout the week. There are some turns that finish early on Saturday morning (ie, the return Jumbo from Acton late at night gets back to the Quarry at early Saturday morning). There are some turns that start Sunday to prepare for the Sunday night/ Monday meaning early departures.
Shunting:
The quarries have their own shunt locos. You will drive the empty or full trains off the reception roads to the destination on the mainline. All moves inside the quarry are done by quarry staff.
Book on/ Book off times:
You will have very odd book on times. For example you may be expected to book on at 10pm and work until 9am. Booking on at 7am and finishing at 3pm is very rare, but there are the odd diagrams that do. There is no rhyme or reason and it is based on the service pattern of customer demand.
Diagrams:
Diagrams generally are around 9, 10 or 11 hours. They are very long days. You may be expected to work inside the quarry forming trains up, or delivering a trainload of material to a quarry, then drive it back. Sometimes depending on a diagram you may also have to drive a staff car (Seat Leon) to a location, to pickup a train and drive it back or vice versa. You may not have access to a toilet or shop for sometime /the full shift. Consideration should be given for 12 hours of food/ water.
Locos:
You will sign class 59s and 66s. 66 training will be included on your 3 month classroom stint. You will get a day on 59s around the time you pass out. There is a hot plate in the cab to warm up soup, etc. There is no fridge. Class 59s have no air conditioning. HHR/ FL Class 66s do have air conditioning that is able to cool the cab when the external temperature is below 30 degree. Due to the construction of the loco (One big metal shed) it gets hot in the summer as the sun beats down on the metal roof, and it can get cold in the winter due to windows letting drafts, etc.
The 10 Vacancies that are being recruited for are a combination of natural wastage (Leavers, retirements, etc) to bring the staff number back up to compliment.
Contract:
You will have your "contract year". This starts as soon as you sign your first route. Everyone's is different. This is a document which logs how many hours you have worked each year. You should by the end of the year have completed 1568 Working hours (it is 1800 but 300 is annual leave). Your average working week on your contract is 35 hours. So 35 hours each week added up after a year taking away leave is 1568. If you end up after 1 year being under hours you will not loose money, you will still have been paid the ~70k Basic. If at the end of the year you have done 200 hours over the next payday after your contract year finishes you will receive a "happy cheque" this is the hours over 1568 paid in one lump sum. Your contract will then renew back to zero and it repeats each year. This is not your employment contract - that is different.
Working week:
Your working weeks could be 55, 30, 27, 42, 45, 50. The hours are long, you will be financially compensated for the extra hours at the end of the year. You can ask to have your contract "managed", this means rostering will try to keep each week as close to 35 hour week throughout the year - some drivers do this. Depends what is important to you - Money or time.
Rest Day:
If you do a rest day (AKA RDW) this will be paid in next months payslip. Over hours contract payment is only paid once a year depending when your contact anniversary is.
You are welcome to question any of the above text to help you make your decision. When I was making a job move from elsewhere to Train Driver people on here helped me with information. I am purely passing the baton on.