Soon to be an ex455 driver?????
Are you gracing a TOC in the Greater West with your presence??
No comment, but I have got my pasty order in!
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Funny as cadence braking used to be taught. Regardless of all the gadgets and gizmos I'd still say what 455 driver does would work
It does, the WSP works the same way as the ABS does on a car, by comparing the rotational speeds of the wheels and any wheel (or axle on a train) which is rotating slower than the others will have the air pressure released until it is spinning at the same rate as the other wheels/axles. Unfortunately if all wheels/axles lock up then the WSP/ABS will assume that the train is stopped and so wont do anything, the result is no braking, no control and once the brakes are released the wheels will make that familiar thud thud thud we all know and love so well!
If that happens on a car (ABS or not) we are taught to release the brakes and reapply them (if no ABS then you do this very quickly several times, cadence braking as Aivilo has stated above) so I do the same with the train as I would do in an ABS equipped car and give the WSP a second chance by releasing and reapplying the brake which is normally enough to get the WSP to work effectively. If all the wheels are locked and you put more braking in then you will just grind flats on the wheels and not slow down which is not good.
I have had several downloads where I have used this action and have never been pulled for it so they must be happy with it despite it being against policy.