Recent content by Harsig

The Underground has never officially tried to get the car numbering to include the stock type as part of the number. Remember that the car numbering schemes also include the Sub-Surface fleets used on the Metropolitan, Circle, Hammersmith & City and District lines and these stock types have...

When London Transport was first formed it was by no means obvious how services on the sub-surface network should be organised. Various different service patterns were tried over the following few years, including I believe a peak hours only Uxbridge to Barking service via the Met which I think...

This 1914 update to the map ( https://maps.nls.uk/view/103313324 ) shows that the centre platforms are the terminal platforms. I would therefore suggest the change in arrangements was made either in connection with electrification of the line in 1905 or with the resignalling which followed...

Except that Whitechapel closed last March. In fact as a consequence of the same stage of the 4LM resignalling scheme the Metropolitan Line Signalling Control Centre at Baker Street is now reduced to only having one signaller on duty at any one time. Other London Underground signal boxes that...

This image below shows the railway's property ownership in the area. It comes from a publically accessible map of TfL property ownership which can be found here: TfL Property Asset Register Public Web Map

The following file shows a series of diagrams that the depict the alterations carried ou in the Wood Lane/White City area when Wood Lane closed and White City opened. Wood Lane / White City alterations 1947/48/49. (PDF)

The ability to reverse south to north in platform 3 was removed in 2010 when platforms 1 and 4 were extended at their north ends to accommodate then new longer S stock. After the extension there wasn't room for two separate crossovers (12 & 13) so the ability to reverse in 3 was lost. This PDF...

This page should answer your questions about yellow shunt signals: http://www.railsigns.uk/sect3page3/sect3page3.html In particular the following extract from the rule book, that appears on the web page, sums it up quite well: "Shunting signals showing a yellow arm or light may be passed...

The three digit number might more properly be regarded as a diagram number. i.e. once a train is allocated to that diagram it runs with that three digit number all day and is referred to by that number. To uniquely identify a particular journey, you also need to refer to the Trip Number, which...

To expand on that a little. The purpose of the 'kilometerage' is to allow for easy identification of specific locations on any given line. It is not there to tell you how far you are from Ongar, and in most cases this won't tell you. As long as the distance given is relatively unique in the...

The 15 mph restrictions apply only because of the presence of tripcock testers in platforms 1, 3, 4, 5 & 6. The tripcock testers were only installed in the very early 2000s. Your film pre-dates both the tripcock testers and the associated speed restriction.

The changeover to the new signalling can only be realistically done during a weekend. Therefore since it couldn't be done during the bank holiday weekend just gone, it has to wait until this coming weekend.

Had the original Northern Line extension plans been fully realised the Alexandra Palace line would not have been a branch from the current Northern Line at Highgate, rather it would have remained a branch from the original route to High Barnet & Edgware which ran from Finsbury Park (where...

My best guess as to the possible intended function of No. 23 lever would be to allow shunts to and from No. 24 road via OZ17 and OZ24. In this scenario I would imagine that reversing No. 23 lever would allow Nos. 17 & 24 signal levers to be reversed simultaneously (with 22 points lever normal)...

The film 'All that Mighty Heart' has a few shots inside the line controllers offices. Although filmed in the 1960s, I believe the offices depicted dated from just before the period you are interested in. In the clip below the control offices can be seen at 3mins 34secs and again from 10mins...