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Post by Dstock7080 on Jul 26, 2023 11:17:37 GMT
Maximum Line speed is 45mph (45 sign just west of Acton Town), WW12/11 signals are timed for 20mph
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Post by capitalomnibus on Jul 27, 2023 0:35:48 GMT
Maximum Line speed is 45mph (45 sign just west of Acton Town), WW12/11 signals are timed for 20mph That seems very slow. I am sure the trains should be able to comfortably do 60 on the stretch past all the District line stations near Turnham Green
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Post by rif153 on Jul 27, 2023 2:31:58 GMT
Maximum Line speed is 45mph (45 sign just west of Acton Town), WW12/11 signals are timed for 20mph That seems very slow. I am sure the trains should be able to comfortably do 60 on the stretch past all the District line stations near Turnham Green I think the speed limit through Turnham Green was lowered a few years back, trains used to absolutely whizz through there and they never do anymore.
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Post by wirewiper on Jul 27, 2023 7:52:51 GMT
Maximum Line speed is 45mph (45 sign just west of Acton Town), WW12/11 signals are timed for 20mph That seems very slow. I am sure the trains should be able to comfortably do 60 on the stretch past all the District line stations near Turnham Green They might well be able to do 60 mph - whether that sort of speed would be comfortable is open to debate!
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Post by Dstock7080 on Jul 27, 2023 8:32:17 GMT
That seems very slow. I am sure the trains should be able to comfortably do 60 on the stretch past all the District line stations near Turnham Green They might well be able to do 60 mph - whether that sort of speed would be comfortable is open to debate! Possibly comfortable but not safe, with the signal overlaps designed for 45mph running.
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Post by M1104 on Jul 27, 2023 9:30:24 GMT
They might well be able to do 60 mph - whether that sort of speed would be comfortable is open to debate! Possibly comfortable but not safe, with the signal overlaps designed for 45mph running. Is it known what the 24 stock's maximum would be along that stretch once everything's up and running including ATO? (bearing in mind that could be a good while yet)
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Post by BE37054 (quoll662) on Jul 27, 2023 9:33:32 GMT
Possibly comfortable but not safe, with the signal overlaps designed for 45mph running. Is it known what the 24 stock's maximum would be along that stretch once everything's up and running including ATO? (bearing in mind that could be a good while yet) Wishful thinking calling it 24 stock ... let's hope we don't have to wait until 2025 though.
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Post by Dstock7080 on Jul 27, 2023 9:41:46 GMT
Is it known what the 24 stock's maximum would be along that stretch once everything's up and running including ATO? (bearing in mind that could be a good while yet) Wishful thinking calling it 24 stock ... let's hope we don't have to wait until 2025 though. ATO is a very long way off. They would be limited to the existing signalling. The TfL designation is 2024 Tube Stock, the first is scheduled to arrive at Ruislip on 4 July 2024, with entry into service 2025.
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Post by M1104 on Jul 27, 2023 10:05:49 GMT
Is it known what the 24 stock's maximum would be along that stretch once everything's up and running including ATO? (bearing in mind that could be a good while yet) Wishful thinking calling it 24 stock ... let's hope we don't have to wait until 2025 though. The 73 stock didn't start entering service until 1975.
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Post by snowman on Jul 27, 2023 10:18:48 GMT
Possibly comfortable but not safe, with the signal overlaps designed for 45mph running. Is it known what the 24 stock's maximum would be along that stretch once everything's up and running including ATO? (bearing in mind that could be a good while yet) The new stock has a design speed of 100km/h (62mph) But that is because basic design is standard for Bakerloo and Central if options are ever exercised, (but might not get that fast on Piccadilly line). I think the section around Turnham Green was lowered to 45mph few years ago. Once the new signalling is active it will probably be 80km/h (50mph) as new signalling and automatic operation operates with 10km/h intervals.
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Post by redbus on Jul 27, 2023 10:48:05 GMT
Is it known what the 24 stock's maximum would be along that stretch once everything's up and running including ATO? (bearing in mind that could be a good while yet) The new stock has a design speed of 100km/h (62mph) But that is because basic design is standard for Bakerloo and Central if options are ever exercised, (but might not get that fast on Piccadilly line). I think the section around Turnham Green was lowered to 45mph few years ago. Once the new signalling is active it will probably be 80km/h (50mph) as new signalling and automatic operation operates with 10km/h intervals. Why was the speed limit limit lowered around Turnham Green a few years ago?
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Post by vjaska on Jul 27, 2023 11:47:06 GMT
The new stock has a design speed of 100km/h (62mph) But that is because basic design is standard for Bakerloo and Central if options are ever exercised, (but might not get that fast on Piccadilly line). I think the section around Turnham Green was lowered to 45mph few years ago. Once the new signalling is active it will probably be 80km/h (50mph) as new signalling and automatic operation operates with 10km/h intervals. Why was the speed limit limit lowered around Turnham Green a few years ago? Dstock7080 mentioned it was lowered due to the signal overlaps being designed for that speed
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Post by Dstock7080 on Jul 27, 2023 12:22:24 GMT
Why was the speed limit limit lowered around Turnham Green a few years ago? Dstock7080 mentioned it was lowered due to the signal overlaps being designed for that speed I'm sure there has been no reduction in the signed speed on the Piccadilly, but as SPAD mitigation measures were introduced some years ago on many Lines. On the District east-end some signals were linked, so that a signal previously showing green, would now continue to show red until the next signal cleared, thus increasing the overlap without moving signals or block joints. Similarly, on the fast between Acton and Hammersmith some signals have been linked together, so a driver will encounter more signals at danger as more trains are running and this reduces the overall speed - although the speed limit hasn't actually been reduced.
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Post by kmkcheng on Aug 1, 2023 12:52:13 GMT
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Post by M1104 on Aug 1, 2023 14:18:55 GMT
The 'petrol head' in me wants to know more details about their motors specs, wondering in particular if they'll sound relatively similar to the R211s used as the A train in New York.
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