Can anyone tell me why modern station designs often have different length platforms for up and down trains, even though both directions will be served by trains of the same length?
Shepherds Bush is a good recent example, which I originally assumed was due to the tightness of the location, but I've just been looking at the network rail plans for North London line station improvements, and many of the stations are being rebuilt with considerably longer platforms on one side than the other - for example, the eastbound platforms at Brondesbury Park are being extended by 28 metres, while the westbound are being extended by only 6m (both platforms were originally approximately the same length).
I'm sure theres some logical reason for it, but I can't see it for the life of me...
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....and, West Croydon has just had one of its through platforms extended by about three/four carriage lengths, whilst the other has been untouched - is this some London Overground thing?
Shepherds Bush is a good recent example, which I originally assumed was due to the tightness of the location, but I've just been looking at the network rail plans for North London line station improvements, and many of the stations are being rebuilt with considerably longer platforms on one side than the other - for example, the eastbound platforms at Brondesbury Park are being extended by 28 metres, while the westbound are being extended by only 6m (both platforms were originally approximately the same length).
I'm sure theres some logical reason for it, but I can't see it for the life of me...
--- old post above --- --- new post below ---
....and, West Croydon has just had one of its through platforms extended by about three/four carriage lengths, whilst the other has been untouched - is this some London Overground thing?
