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Originally Posted by pre65
Don't forget the split level units that Oliver Bullieid designed in 1949, and retired from service in 1971.
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Yes indeed, they were more forward thinking 60+ years ago than they are now.
But as usual with everything British they were aimed at the wrong market (commuters) and done on a shoestring..
Quote:
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Originally Posted by Wonkypedia
The 4DD was somewhat unsuccessful because the upper level compartments were cramped and poorly ventilated (the upper level windows could not be opened due to tight clearance). The compartments were pressure-ventilated but the equipment proved to be troublesome. Dwell times at stations were lengthened because of the increase in the number of passengers per door.
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With significantly longer dwell times it's not really viable on intensive commuter routes, but fully plausible on long distance/high speed ones.
Long ago we should have issued an edict for a NEW guage - so that all new structures and enhancements/repairs to
mainline routes are made a bit wider and alot taller.
Look at HS2. It will be mostly a brand new railway and they'll miss the chance !
Most other countries have double deckers, but as usual our pathetic politicians and leaders will let us be one of the last countries in the world to have them.