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What if
Sept 13, 2023 15:52:10 GMT
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Post by COBO on Sept 13, 2023 15:52:10 GMT
Hypethically could TfL create a new Underground line by using the HS2 tunnel instead of creating their own tunnel?
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Post by lonmark on Sept 13, 2023 19:07:40 GMT
Hypethically could TfL create a new Underground line by using the HS2 tunnel instead of creating their own tunnel? No
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Post by COBO on Sept 13, 2023 19:10:14 GMT
Hypethically could TfL create a new Underground line by using the HS2 tunnel instead of creating their own tunnel? No Why not?
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What if
Sept 13, 2023 19:56:15 GMT
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Post by lonmark on Sept 13, 2023 19:56:15 GMT
Underground is stopping at the lot of local stations.
HS2 is non- stop running on miles between station.
TfL is not keep on it.
However Southeastern is using high speed from London st Pancras international to many stations in Kent area. So it more likely down to national railway rather than underground.
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What if
Sept 13, 2023 20:40:47 GMT
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Post by COBO on Sept 13, 2023 20:40:47 GMT
Underground is stopping at the lot of local stations. HS2 is non- stop running on miles between station. TfL is not keep on it. However Southeastern is using high speed from London st Pancras international to many stations in Kent area. So it more likely down to national railway rather than underground. But couldn’t new stations be created for the underground to stop at the local stations? Create new interchange stations at Perivale, Northolt, Greenford and so on?
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Post by ThinLizzy on Sept 13, 2023 20:47:07 GMT
Underground is stopping at the lot of local stations. HS2 is non- stop running on miles between station. TfL is not keep on it. However Southeastern is using high speed from London st Pancras international to many stations in Kent area. So it more likely down to national railway rather than underground. But couldn’t new stations be created for the underground to stop at the local stations? Create new interchange stations at Perivale, Northolt, Greenford and so on? probably not if the tunnels have already been built. More to the point, why would they?
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What if
Sept 13, 2023 20:57:59 GMT
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Post by COBO on Sept 13, 2023 20:57:59 GMT
But couldn’t new stations be created for the underground to stop at the local stations? Create new interchange stations at Perivale, Northolt, Greenford and so on? probably not if the tunnels have already been built. More to the point, why would they? What if they wanted to create a new line using the HS2 tunnel to act as relief for the Central line?
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Post by WH241 on Sept 13, 2023 21:23:00 GMT
probably not if the tunnels have already been built. More to the point, why would they? What if they wanted to create a new line using the HS2 tunnel to act as relief for the Central line? Are you suggesting the Underground could share the same tracks of the high frequency HS2? Not a chance of that happening.
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Post by vjaska on Sept 13, 2023 21:32:20 GMT
probably not if the tunnels have already been built. More to the point, why would they? What if they wanted to create a new line using the HS2 tunnel to act as relief for the Central line? Correct me if I'm wrong but the Central has already been relieved by the Elizabeth line? Why would it then need to be relieved again?
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What if
Sept 13, 2023 21:52:10 GMT
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Post by COBO on Sept 13, 2023 21:52:10 GMT
What if they wanted to create a new line using the HS2 tunnel to act as relief for the Central line? Correct me if I'm wrong but the Central has already been relieved by the Elizabeth line? Why would it then need to be relieved again? yeah with the Ealing branch but that’s with the Ealing branch and the main section but I think that West Ruislip up to South Ruislip could have some of relief.
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What if
Sept 13, 2023 21:56:48 GMT
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Post by COBO on Sept 13, 2023 21:56:48 GMT
What if they wanted to create a new line using the HS2 tunnel to act as relief for the Central line? Are you suggesting the Underground could share the same tracks of the high frequency HS2? Not a chance of that happening. Um yes but what will prevent that?
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Post by kmkcheng on Sept 13, 2023 22:23:30 GMT
Are you suggesting the Underground could share the same tracks of the high frequency HS2? Not a chance of that happening. Um yes but what will prevent that? Common sense. You can’t expect an all station slow train that would be travelling at 30mph for example share tracks with a high speed train that could be going at 100mph or more
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Post by routew15 on Sept 13, 2023 22:32:39 GMT
Are you suggesting the Underground could share the same tracks of the high frequency HS2? Not a chance of that happening. Um yes but what will prevent that? I think you miss understand the purpose and intention of HS2. It is not a tube line or even Elizabeth Line type line. Its TBM are the second largest in diameter in the UK (only second to Silvertown TBMs). They cannot sensibly be reused for building a Central Line relief route. It is a high speed rail line akin to HS1 in Kent. My understanding is demand on the Central Line at this end of the route lower than the other side. If the Central Line is in high demand between North Acton and West Ruislip then the surface level New North Main Line should be better utilised not HS2
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Post by COBO on Sept 13, 2023 22:57:48 GMT
Um yes but what will prevent that? I think you miss understand the purpose and intention of HS2. It is not a tube line or even Elizabeth Line type line. Its TBM are the second largest in diameter in the UK (only second to Silvertown TBMs). They cannot sensibly be reused for building a Central Line relief route. It is a high speed rail line akin to HS1 in Kent. My understanding is demand on the Central Line at this end of the route lower than the other side. If the Central Line is in high demand between North Acton and West Ruislip then the surface level New North Main Line should be better utilised not HS2 Does the Northolt to Acton line still meet at Old Oak with the GWR mainline?
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Post by routew15 on Sept 14, 2023 7:33:35 GMT
I think you miss understand the purpose and intention of HS2. It is not a tube line or even Elizabeth Line type line. Its TBM are the second largest in diameter in the UK (only second to Silvertown TBMs). They cannot sensibly be reused for building a Central Line relief route. It is a high speed rail line akin to HS1 in Kent. My understanding is demand on the Central Line at this end of the route lower than the other side. If the Central Line is in high demand between North Acton and West Ruislip then the surface level New North Main Line should be better utilised not HS2 Does the Northolt to Acton line still meet at Old Oak with the GWR mainline? Currently no. The plan, as I last understood them, was for this route to be dead-ended at Old Oak Common upon completion of works there. I believe the reason for dead ending at OOC is similar to that of West Ealing where Chiltern trains would conflict with Elizabeth Line trains.
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