SSR resignalling

[ijmad]

Well then, that's great news!

 

[Dstock7080]

Is the “operational incident” that’s got the lines suspended at the minute related to this?

Nothing at all, communications failed between Power Control and the bulk supply point at Whitechapel before services started. Took until 08.40 for all Lines to resume.

There was a Staff error which required traction current to be removed in the Cromwell curve-Victoria section from around 11.15. Services resumed at 12.25

 

[Scotrail88]

Sorry for ignorance but what did the 2 elements of switch over achieve in actual speed increases

 

[Dstock7080]

Sorry for ignorance but what did the 2 elements of switch over achieve in actual speed increases.

As mentioned above, faster acceleration away from stations,
maximum now:
46mph Ravenscourt Park-Stamford Brook westbound
40mph Hammersmith-Barons Court eastbound
46mph Fulham Bdwy-Parsons Green westbound, 45mph eastbound
(sadly only 8mph along Parsons Green platform)
36mph Parsons Green-Putney Bridge westbound
40mph Putney Bridge-East Putney westbound. 42mph eastbound.

 

[OneTrackMinded]

(sadly only 8mph along Parsons Green platform)

Just noticed this, why?

 

[Dstock7080]

Just noticed this, why?

Guessing, risk of overrunning onto no.18 points.

 

[Nym]

Or perhaps it's coded up as a platform, closed station to enforces the operational rule?

 

[Dstock7080]

Or perhaps it's coded up as a platform, closed station to enforces the operational rule?

which would be 19mph in CBTC.

 

[D7666]

One thing which will be interesting is the fact that every single s7 stock will need to keep the tripcock equipment, which is surely going to add on a significant amount of cost to maintain just for a small sections of the West end District. Have tfl considered removing tripcock equipment on some s7s? So these would be confined to the Circle, H&C services?

Going back to that question, perhaps a fairly fundamental point has been missed - one that leads to the need for all S7 to retain tripcocks.

Ealing Common depot.

Depot is west of Stamford Brook, which the western boundary of CBTC. So with this weekends changes, that is the end (for forseeable future) of District resignalling => any S7 needs tripcocks to reach Ealing Common depot.

Mixed tripcock/no-tripcock would mean CBTC only no-tripcock S7 could only be maintained at Upminster, and that in turn would be a much much bigger complexication than dealing with odd failures. You'd end up having to rotate the entire Circle and H&C S7 from Upminster, even if on any one day they were berthed at Barking or Hammersmith or anywhere else they'd still need rotating via Upminster and could not go to Ealing Common.

LU generally does know what it is doing with these things.

 

[bluegoblin7]

It’s also worth noting that S7s also rotate via Neasden depot for heavier maintenance and overhaul/lift. Whilst that doesn’t impact the removal of tripcocks, it is a further complication.