Why is OJ20 semi-automatic? To prevent trains from carrying on when the service is suspended west of King's Cross and have to reverse via OJ17 and 18 points?
Also, why is A201 red in the after diagram?
For A.201, I assume its because it has a timed track circuit (and a policeman, a timed trainstop without a signal) in rear of it that means it can only clear once the train has cleared the timing section, ergo making A.201s default signal aspect that of being at danger; red. The policeman is there to protect the crossover from overrun since A.201 does not provide sufficient overlap as far as I know. 0 For OJ.20, Im not sure, but to prevent reversers from carrying on makes sense. I THINK (although I cannot confirm since I am not in the country right now), the Inner Circle Limit of Shunt is right at OJ.20.
Having ridden only once so far on a refurbed unit (even though I get the Jubilee almost every day), I do like the new feel of the inside.
But since the retro feel is in (the original interior and seat moquette was quite retro imo) it wouldve been great though if they just made the interiors orange, wooden floors and used an orange, red and black rectangular seat moquette. Oops. :p
Ok, my point is, I just dont like the current moquette. I think its a bit,well, bland to be fair. Twould be nice if we went back to each stock having its own pattern. Maybe even the current pattern but in grey for the '96 stock. I just feel like, the moquette, whilst relatively new, feels really out of place and old in comparison to the rest of the brand spanking new interior. In contrast, the moquette worked perfectly with the '95 stock post refurb (and still does imo). It just removes from the freshness of the new interiors for the '96 stock I think.
Hey guys! (Im usure of whether to post this here or in the signals category, since its a bit of both)
According to Harsigs diagram on signalling from HotH to Amersham from 1962, JP13, the wrongway facing shunt signal on the Northbound road at Rickmansworth has an associated repeater signal some distance aft of it, called RJP13 which is also a disc. Does anyone have an image of this or other signals providing the same function? Or did they look the same as shunt discs which permit shunting in a yard when on?
Also, how popular were Shunt disc repeaters? Id have thought their usefulness was fairly limited since movements past shunt discs are cautionary by nature.
Anyway, images ahoy if anyone has any! Thanks in advance (of RJP13)! 😁
Looks like Harsig beat me to it, but: 2) OJ19E has speed control. 4) The resignalling caused a number of locking changes and we completely replaced the mechanical locking with new.
Not many people know of the trouble getting those tiles... I had to sit in the Courier's depot refusing to leave unless I had them!
Waiting for those tiles sounds like it was a mildly stressful affair :')
RE: 2) I assume by OJ19E you mean OJ14E (sorry if im being silly). That seems quite unusual (and hence even more interesting) to have the inner signal in the sequence speed controlled. Im guessing at 20/25mph. Any clues as to why this is so and not the outer signal(s)?
RE: 4) How long did that interlocking change take? It sounds like a fairly daunting task.
Basically, ive been intrigued for a while by the Kings Cross approach on the Inner Circle, especially since my commute takes me over this stretch of track on a daily basis but also because im trying to chronicle the SSL signals and their approximate function before their eventual removal (hence why most of my questions on signalling relate to signals on the SSL). I have a few questions related to the approach:
1) How many home signals does the Inner Circle approach have and how are they numbered (including any repeaters)? 2) Are any of them speed controlled signals and if so which? (Ive always assumed at least the first two signals are speed controlled) 3) Which of the home signals does the Repeater in advance of A210 repeat? 4) How has the removal of the Outer Circle to Inner Circle crossover affected the interlocking of the signals, as in, before the removal of the points, if a train was reversing East to West and a train was approaching along the Inner Circle, where would the train on the Inner Circle have been held? (Also what was the old shunt signals' number?)
This is quite detailed, I know, but ive always tried to catch a glimpse of them from my train and note them down and have never quite been able to see them (I think most of them are in the 6ft way), which is a bit of a bummer since especially in the peaks, they really provide a great working example of a long sequence of Multi-Home signals doing their job properly.
Any help would be appreciated!
(Ps, since the introduction of the new crossover between Euston Square and Kings Cross, I could ask a similar question for trains approaching Kings Cross on the Outer Circle, but i'll refrain from that for now )
Not a particularly useful point but im just excited at the prospect of seeing 3 Car '73 Stock running up and down the Pic! This years' leaf fall season should be interesting compared to last years particularly flat fall season... :p
So, on my commutes over the past week, ive noticed that all along the Greenwich line and the North Kent line up to my home station (Woolwich Arsenal), there have been new Class 700 stopping markers (Diamond ALL and RLU/FLU alongside the square S/4/5/6/8/10/12 car stop markers) being placed up and around at appropriate stopping positions at relevant stations.
What strikes me as odd about this is, apart from the provisional 2018 timetable which mentions the possibility of running Thameslink trains to Rainham(Kent) via Greenwich, nowhere else is this possibility of running Thameslink services via the Greenwich/NK lines mentioned, except for one line in the Kent Route Study where again, its written in as a vague possibility based on the aforementioned timetable. One gets the feeling that Network Rail are uneasy about having Thameslink running over the Greenwich/NK line. Nontheless, the timetable is provisional and subject to change. Hence, it has piqued my interest exceptionally that the stopping markers have gone up, since that implies Govia are investing in running their units over these lines.
So my question is, have Govia been given the go-ahead to have Thameslink services run to Rainham as per their 2018 timetable? If so, why havent they made it public yet? It feels so hush hush. Does anyone know anything more concrete? Thanks