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SSR resignalling

Railguy1

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6 Apr 2016
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If the train has to stop, how can the statement ”will not impact on journey times” be true?
 
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RailUK Forums

bluegoblin7

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The brief (< 1 minute) stop is mitigated by the increased speed limits and acceleration rates and the reduced run times, as well as allowing trains to get closer together. Given the regular congestion experienced both on the north and south it is unlikely to be noticeable.
 

Mldaureol

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5 Mar 2023
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Humberstone
Is Baker St SCC (Met) closing tonight / Sat morning after the last train or is it open over the weekend during the testing / implementation of the new Control area between Finchley Rd and Preston Rd.
 

bluegoblin7

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Yes, to join the Line Controllers and other service operators

Top level yes, in terms of where signalling control for the area is going. The slightly expanded answer is that some staff will be directly transferring to Hammersmith as SCL1 (the grade of the signallers at Hammersmith, controllers being SCL2), some have opted to move to the remaining Met cabins, some are retiring and some are moving to the Neasden TMR (Train Movements Room).

Is Baker St SCC (Met) closing tonight
It is also worth mentioning that what is closing tonight is the 'interim' signalling cupboard room created at Baker Street to bridge the gap between the initial expected SMA8 go-live date and the space the old one occupied being required for the Bakerloo Interim Control Upgrade. London Underground's newest control room (opened 08/2024 - I have two conflicting sources on the exact date) is about to become its most recently disused. I think this is a new record.
 

Silent

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31 Mar 2016
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288
This morning got the Met it seemed faster between Wembley Park and Finchley Road. I don’t know if the signalling has been changed yet. For once the Jubilee line out of Wembley Park didn’t overtake the Met line like it usually does though it almost did. When the Met line goes fast, which it did today, between Kilburn and West Hampstead it usually causes me a bit anxiety I think because it’s downhill and it usually slows down. I remember when cbtc was turned on between Baker Street and Finchley Road. The Met Line overly fast or noticeably faster but I think the speed was made to feel smoother overtime as it would accelerate and decelerate more at first.
 

Railperf

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30 Oct 2017
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What’s the speed improvements following this?
officially 100kph (62mph) on certain sections, though the ATO system seems to have more minor lower restictions programmed in - notably at Neasden where it slows down more than some of the trains did previously.

Overall the difference being that given enough distance between trains, ATO will deliver a consistent journey time and performance between stations where previously there was a larger time difference based on drivers individual driving styles.
You wll fee the quicker acceleration and most trains will reach 100kph whereas in manual mode the S stock was rather slow to reach 60mph, and drivers often opted for speeds between 48 to 56mph.
But the speed changes fairly frequently, the headline 100kph being sustained from Kilburn to Dollis Hill northbound and mainly south of Neasden to just before west Hampstead southbound, which feels quite lively if you are used to ambling in to Finchley Road
To be fair the timetable only demands 7 minutes from Finchley Road to wembey Park, so drivers cuould achieve that with a 50mph speed ceiling. The timetable seems to be based on long scrapped A-stock 50mph timings!
ATO improves the actual journey time to 6 minutes, closer to 5.5!

North of wembley, the signalling changeover at the boundary seems to extend journey times for the semi-fast trains not stopping at Preston Road or Northwick Park slightly - but under the current timetable there are more semi-fast trains although fewer trains on the met network than normal. So if you are heading north of Wembley, there is a chance you could end up on a faster service than a stopper. I think the Amersham Chesham and some Watford's are semi-fast right through the day!
 

Mojo

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North of wembley, the signalling changeover at the boundary seems to extend journey times for the semi-fast trains not stopping at Preston Road or Northwick Park slightly - but under the current timetable there are more semi-fast trains although fewer trains on the met network than normal. So if you are heading north of Wembley, there is a chance you could end up on a faster service than a stopper. I think the Amersham Chesham and some Watford's are semi-fast right through the day!
The Amersham and Chesham services are running Semifast (calling at Wembley Pk) during the daytimes and evenings when they would otherwise run all stations. It’s worth pointing out that this timetable notice is only for Mon-Thurs, the normal timetable will resume on Friday.
 

Railperf

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It is supposed to revert to a temporary summer timetable - which is not the published WTT dated January. Slightly annoying that the temp timetable does not seem to be published anywhere.
 

cle

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17 Nov 2010
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Will this get beyond Harrow? More journey time savings to be made up to Moor Park, I would say.
 

Railperf

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Will this get beyond Harrow? More journey time savings to be made up to Moor Park, I would say.
The project is not just about speed , though the time savings are welcome. It is also about capacity and being able to run more trains closer together.
 

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