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https://twitter.com/GarethDennis/status/1193844488411779073?t=JWjXDIm9xgtQBfd4sjYiUA&s=19
https://twitter.com/grantshapps/status/1542059391389765632For starters, the ECML was resignalled in the 1950s with one of the most sophisticated power signalling systems in the world, and then again in the 1990s with genuinely world-leading solid state interlocking (SSI). Since then, further incremental upgrades have continued.
https://twitter.com/PermanentRail/status/1158040889736015872
https://twitter.com/GarethDennis/status/1458408569733324804Oh, and if you want to see Tim and I exploring inside the old Curzon Street station principal building as well as a plod around inside the roundhouse (courtesy of @HS2ltd), then you can watch this old thing:
https://twitter.com/GarethDennis/status/1433025455381172225?s=19
https://twitter.com/PermanentRail/status/1384823057747939329Here's a higher resolution version of the "traveller type" graph in that thread, using quarterly data...