Yet to find the time to dig out the question paper and read carefully, but a skim read suggests that it is of a sensible length, clearly laid out and certainly starts off well.
Possibly you should have made more of the effects on signal sighting re cab sight lines if the train just fits between signals but not with the ability to stand sufficiently far from the signals to give good sighting- perhaps co-actors would provide mitigation.
Could have mentioned that there are sometimes "measuring tracks" and the longer trains could defeat.
Similarly longer trains could give problems if they have electrical connections to a common busbar as could short across between different traction power supplies or liven up sections that are supposed to be isolated. Longer trains may also draw more power and this in turn could give problems with the operation of track circuits or even axle counters.
The tabular presentation looked good although I haven't yet read the detail, but as far as initial impressions go it looks a good answer- provided of course you have really answered the question the examiners asked!
Possibly you should have made more of the effects on signal sighting re cab sight lines if the train just fits between signals but not with the ability to stand sufficiently far from the signals to give good sighting- perhaps co-actors would provide mitigation.
Could have mentioned that there are sometimes "measuring tracks" and the longer trains could defeat.
Similarly longer trains could give problems if they have electrical connections to a common busbar as could short across between different traction power supplies or liven up sections that are supposed to be isolated. Longer trains may also draw more power and this in turn could give problems with the operation of track circuits or even axle counters.
The tabular presentation looked good although I haven't yet read the detail, but as far as initial impressions go it looks a good answer- provided of course you have really answered the question the examiners asked!
(01-09-2014, 05:58 AM)greatnessjason Wrote: An attempt for comments please
PJW