The recent bad weather led to widespread cancellations of trains on routes south of London, electrified on the third-rail system. As a result, it has come under criticism, with calls for it to be replaced by overhead electrification.
That is not, of course, going to happen and would be a waste of money even if the cash was available. The third-rail electrification system is fundamentally robust and needs little attention most of the time, by contrast with overhead systems which need regular adjustment and can be brought down be a faulty pantograph.
During a similar spell of cold weather in the 1980s, a railwayman told me that the CIGs were nowhere near as good as the older stock when the weather was icy. The difference was that on older trains, the pick-up shoes were attached to massive timber beams like those in the trains in the picture. This enabled them to smash through the ice on the conductor rail.
I don't know if there is any truth in this but it looks as if a bit of research in this area could lead to improvements which would not cost any great amount.
The Guardian has published a couple more articles against HS2, one by specialist rail commentator Christian Wolmar, and another today by journalist Simon Jenkins. The main arguments in favour will doubtless be wheeled out by the commentators: the need for capacity and the disruption caused by upgrading existing routes. HST itself will severely disrupt services to Euston during the construction period. Capacity can be increased at a fraction of the cost by a variety of measures, provided that it is accepted that the additional traffic will run at existing speeds. It is not generally known that the Midland main line is, or was, four track all the way from London to Trent Junction, between Nottingham and Derby. This is because the additional tracks are separate, having been added for coal trains which trundled down to Brent sidings, on the edge of London, from a collection point at Toton in Nottinghamshire, where the Midland Railway build a huge marshalling yard. Beyond Derby, the main l...
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Could also be an opportunity to improve the theoretical maximum speed from 100mph