However, as a union they are not willing to accept shoddy cab cooling anymore. So considering its role to protect and represent Drivers then they are fully entitled to refuse substandard cabs that do not have grandfather rights.
It's grim sitting in a boiling cab for up to 5 hours with no way of getting some relief. It's also very dangerous for the train as it's proven that heat is a contributory factor in fatigue - more fatigue means more incidents. I recorded a temperature in a cab of close to 40c last summer. Freight drivers reported temps even higher.
Issues also have been the seat pitch and positioning of certain controls.
Most new traction involve the union very early in the process with regards cab design. That eliminates many of the problems.
Frankly and bluntly it's irrelevant what you agree with. For far too long heating/comfort issues have been ignored. Whilst you may not care about this the union has finally stopped ignoring the amount of skeltomuscular injuries drivers have been suffering for decades.
For the purposes of cab ergonomics it's a new train.
Thank-you Eccles1981 - I found this really helpful and informative. I admit my first reaction was that ASLEF were being unreasonable, for some of the reasons expressed above.
BUT we're talking about providing a reasonable working environment for people who a safety critical role (putting it mildly). How many of us would tolerate - never mind perform well - in such an environment? When looked at that way, kicking the can down the road because the cabs have been like it for 30 years isn't an acceptable answer - it wasn't for SPADs, slam doors, level crossing accidents, or anything else safety related. It would be a tragedy if a serious incident were to happen for which the RAIB report concludes that the driver's performance was impaired by adverse cab conditions.
It seems to me that more joined-up thinking is needed between train manufacturers/developers, TOCS, unions, and passenger groups - to get get things right first time. Way cheaper than doing it for the cheapest price, and then having to re-work it because what was produced wasn't fit for purpose (and yes, I do mean including seats and seating design, for drivers and passengers).