by Workingman » 22 Nov 2021, 14:14
It is not the speed of the train: if the track is not up to it it's pointless.
An InterCity 125 can do speeds of 125mph. In theory it could do Leeds to London in 1 hr 48 mins, so why doesn't it? It can't accelerate from 0 to 125 in a second nor decelerate at the same rate - nothing can, not even HS2 trains.
No, its main problems lie in getting out of the commuter belts at both ends, so from Leeds to south of Wakefield and then between Bedford and Stevenage to Kings cross.
The next issue is the slowing down and speeding up times as the train passes through Doncaster, Retford, Newark, Grantham and Peterborough stations, and others, on the route.
The existing Leeds to London line could have been made quicker (than HS2) with less environmental damage using IC 125s, and at a fraction of the cost of HS2. That could be done on many other lines too.
London to Manchester via Birmingham is not a backbone, it is more like a spare rib. Gotta love the pictures in the glossy brochures the HS2heads drool over. Bullet nosed and very shiny silvery blue train speeding across open countryside.... but with barely a gantry or overhead cable in sight. So pretty, such an easy sell to the gullible.
HS2 powered by Angel breath.