norbitonflyer
Established Member
With Mark 3s the two rakes were identical, and rotated through all four destinations (Inverness, Edinburgh, Aberdeen/Fort William, Glasgow) in succession. The Edinburgh and Glasgow portions were swapped during the day at Polmadie so that the same rake was at the London end of the Lowlander in each direction. The electric leg of the Highlander ran with the Inverness portion leading in each direction.Not always at the Northern end. It was changed when the stock was switched from Mark 3s to Mark 5s. As you say, the Inverness portion used to the South end going north.
The switch was made because the Edinburgh portion always works the Inverness portion.
The mark 5 rakes are not identical - the portion for Aberdeen and Fort William has to have cabins for disabled passengers for both destinations, and so half the rakes have two carriages with disabled accomodation whilst the others (which go to Inverness) have only one. Thus the rostering is now arranged so that there are two separate rosters, one covering Aberdeen/Fort William and Edinburgh, and the other Inverness and Glasgow. The rakes are no longer swappped at Polmadie during the day, meaning that there is less time for servicing the rake that is shuttled over from Edinburgh before it needs to go back. Another consequence of this is that the Aberdeen/Fort William portion is now at the rear end of the combined train in both directions.
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