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I'm puzzled by a couple of things about that Science Museum listing. One is that is says nothing about where their one stood, though it is described as "Fixtures & Fittings from Railway Buildings". This picture from 2010 shows the one in St Lawrence's churchyard in Reading, and I'm puzzled that...

I wonder how many TERs split en route. It's not easy to find the sort of timetable that would show it. But a couple of times a day a Nantes-Pornic and a Nantes-Saint-Gilles-Croix-de-Vie train set off coupled together and are split at Saint-Pazanne. No such pairs appear to join on the way back,

It looks as if LNER were mainly involved as organisers of the other actors. Railsite owns base station sites, and Railsite Telecom develops base stations on railway land; they also own a small fibre BNO* in Northumberland. Mobile phone users get their service direct from their MNO; WiFi users on...

10 m is a long way down for a Roman to be digging (or having someone else dig). The railway yard south of the station seems a more likely reason to dig deep foundations. But taking some rough dimensions off the drawing in post #408, and assuming the sheet piles marked there are the relevant...

Reported at the time as all wheels and rail contaminated by a mystery white substance causing very low adhesion. Presumably samples were taken by someone before it was all cleaned off.

Yes, it (the M42 Coleshill box) is actually a diagonal deck supported by transverse beams, though it looks like the beams don't have visible gaps between them. Thst's from an HS2 learning legacy document on "Integral Bridges in HS2", which I think is quite old though this version was published...

I was assuming that anyone travelling far to visit TNA would rather not spend even half an hour getting to and from Kew Gardens and picking somewhere to eat, and risk taking a wrong turn (easily done). A proper drawing board, of the kind I learned technical drawing on in the 1960s, was roughly...

Firstly, do read the TNA guide pages not just about visiting for research there but also about each kind of document and finding and using them. I've not been for a few years, but from the guides it seems little has changed. You can't get a reader's card in advance; the process of checking...

Network Rail have put out (5 Sept) a tender notice titled "Oxford - Architect Services". The full notice is long, but this is the first section: Of course that does not tell you what they want designed, that'll be in the tender pack.

The braking system is described in the posts above, but it's hard to see it among the much greater volume of speculations based on the assumption it's not there. This is my understanding, based on peering intently at Figure 2 in the report and recruiting a couple of little helpers with the...

The status of Berwick substation is a bit odd. It's listed in the ETYS data under SPT (Scottish Power Transmission), so it's a transmission substation. Its feed from Eccles was recently renovated by SPT, though not upgraded. Functionally, it's a 132/33kV grid supply point, with a pair of 60 MVA...

The production date of the PDF is yesterday, so that edit is new. Of course that tells you nothing about the age of the information in it. If you click on the "button press" icon, it's a live link and takes you to an information sheet that's dated 2024, so not so new. It's also confusing, as...

While the Lawley Middleway bridge move was reported as "complete" five days ago, all the pictures from then showed it still propped up on those spacers. You could see that most of that red Mammoet shifting kit - including the skidding system, and the jacking beams - had to be taken out to allow...

They have to, as they are built as two independent half-trains with no power connection between them.

I don't see that! The big initial turn ends at about 0:19, and the next thing seen after the video cut is movement lengthwise. Between the two is a 90° wheel rotation that we always knew had to happen, but I don't see it on the video. The wheel-waggling after 0:20 is a slight adjustment in...

I did wonder that. Turning the wheels was obviously needed during the initial spin-wheel manoeuvre, but seemed unlikely during the straight roll-out. After all, any movement to the side would be even more disastrous than for-and-aft, so more worth resisting. This other video has some good...

Have you tried identifying the matching plots on both maps and tallying the areas that are changed in some way - split, joined, or repurposed? The plots do in general have clearly marked boundaries, and the areas were carefully worked out and written in (though railway land is on long odd-shaped...

Yes, it looks to have moved three steps forwards. The transverse beam on the wheeled supports on the nearer pier is now close to mid-span; it was at the far end of the span. It must have been detached and moved back with the whole thing supported at both ends. There can't be much weight on...

It is seen there still in its initial position. The roller skates forming the main support near the middle have been removed, and those under the back end (for its coming move) need to be turned through 90°. It was clear before that it could not be slid in the usual way, as its lower side is...

Here's a YouTube video showing what Mammoet have achieved so far - basically the 90° turn to the starting point for crossing the road. I had assumed that the move over the Lawley Middleway would involve those big wheely things picking it up, rolling forward as far as the space available...