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Sense seen on Crossrail at last?
On 7 May, 10:28, "Tim Fenton" wrote:
"Recliner" wrote in message ... My feeling is that Dave and his jolly good chums are set to visit on us the same horrors that Thatcher did, having learned nothing from the post 1979 record. They won't be the ones that have to go without. They enjoyed 18 years of power after 1979, so maybe their post-179 record wasn't so unpopular after all. So a decade of three million plus unemployed is OK, then? What the Tories did manage was to demonstrate that, with the UK's electoral system, you can get a landslide victory with only 30% of the electorate making a positive choice for your party. This was also discovered by Labour, whose positive choice percentage in 2005 was even less. I believe that unemployment has never since gone as low as it was at the time when the Tories produced their "Labour isn't Working" poster. |
Sense seen on Crossrail at last?
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Sense seen on Crossrail at last?
On 7 May, 11:11, wrote:
On Thu, 7 May 2009 02:59:21 -0700 (PDT) wrote: John Major's Tory government was accused of sleaze and incompetence but nothing they did bears more than the slightest resemblance to the institutionalised gross corruption and negligence of this NuLabour lot. No, *everything* they did is *almost exactly identical*. Not really. The tories were more into personal sleeze, with labour its more political sleeze. And TBH even in the worst excesses of the Major goverment no politicians career would survive 2 forced resignations from government. Even Archer didn't manage that. Yet theres mandelson , still with his finger on the pulse. "Fangs in the ankle" is more the phrase that comes to my mind. |
Sense seen on Crossrail at last?
wrote in message ... On May 7, 9:05 am, "DW downunder" noname wrote: 4. NO-ONE has mentioned the plethora of hybrid battery-equipped rollingstock currently prototyped, on trial, in low volume production etc around the world. Given Crossrail's gestation, can I assert with some confidence that by then it will be quite normal for trains to extend a moderate distance beyond the wires or juice rail. 25kV to Reading would not necessarily be a pre-requisite to CrossRail service by the mid-10s. No, you can't. Batteries are a crap way of storing energy. Making batteries not be a crap way of storing energy has been a major preoccupation among engineers and physicists and - even more importantly - the people who fund them for decades. They've made batteries be a slightly less crap way of storing energy. They haven't made them not be a crap way of storing energy. None of the current trials do anything to reverse that. At absolute best, a battery train might just about be a solution for Henley. It would be an insane solution for 6ish tph on the GWML. -- John Band john at johnband dot org www.johnband.org Thank you, gentlemen - and your sources? Perhaps a little more depth would help me understand - as I understand you, with supercapacitors, emerging lithium technologies and our old faithful lead-acid gel we haven't yet got a package of technologies that can be tuned to the precise characteristics of suburban/interurban rail - and can't expect one by the time Crossrail is commissioned? Is it the vibrating environment, the heating and cooling cycles, the economics of battery life and charging cycles, or the energy storage per unit mass that is/are the "fatal" issues from your data sources? Crossrail is at best 5 years out. Hybrid motor car products are moving into the mainstream, 3rd generation Prius, local manufacture of larger Hybrids by Toyota outside Japan (hybrid Camry to be made in Australia, release 2010, for example), more manufacturers in the market, Obama forcing GM and Chrysler down the hybrid, ecodiesel, light and green road, etc. With all this putting volume into the automotive propulsion battery market, you're convinced price and performance won't trend towards technical and economic viability for transit and urban rail traction applications? OK David down under |
Sense seen on Crossrail at last?
On 6 May, 17:49, Mizter T wrote:
Except that (if I've got this right) in the evening peak you can use off-peak tickets on the slower Turbo services but not on the HSTs, at least for journeys leaving London - though to outsiders this information is rather hard to come by. Posters are up & visible at Paddington..... And that is unlikely to change under Crossrail - just that they'll need to change trains at Maidenhead / Reading.to get to Oxford in the evening peak. On 6 May, 18:01, "Peter Masson" wrote: "Chris" wrote It won't be cross-platform - fast London's will leave from current platforms 8 & 9, the slows / crossrail would be from the 3 extra platforms (behind current Plat 9 and a further island platform to the north of that. AIUI existing 5 & 8 will be the Down Main platforms, 9 and a new face opposite it will be theUp Main platforms, and the Relief/Crossrail platforms will be two new islands beyond that. You are correct - I got my current platform numbers in a mess! On 6 May, 18:39, Roland Perry wrote: I thought the residents in the vicinity of Maidenhead were opposed to the ugly looking OHL? Or have they come to terms with it now. Do they have any choice? Permitted development on the railways means that they don't need planning permissions.... On 6 May, 20:22, GazK wrote: Oh yeah? Do you know just how large these two projects are? Not a hope in hell..... Sorry to contradict, but they are being developed by a single NR team, with a single manager at the helm. I know this to be true because he gave a presentation last week, at which I was present. Thanks for this update. On 7 May, 09:05, "DW downunder" noname wrote: 4. NO-ONE has mentioned the plethora of hybrid battery-equipped rollingstock currently prototyped, on trial, in low volume production etc around the world. Given Crossrail's gestation, can I assert with some confidence that by then it will be quite normal for trains to extend a moderate distance beyond the wires or juice rail. 25kV to Reading would not necessarily be a pre-requisite to CrossRail service by the mid-10s. As a mechanism purely for getting ECS Crossrail stockl to / from the Rwading Depot & Maidenhead - yes, I guess this would be a possibility. 5. Also absent from discussion so far has been AirTrack. In some other forums, we hear that BAA are firmly behind AirTrack. AIUI, provision has been made in the Heathrow 5 station box for them. Correct. The discussion suggests that HConn/Crossrail will run through to Reading via H5 and AirTrack. Hmmm - brains trying to do overtime again?.....not a chance! Why on earth would the DfT want to spend a lot extra on dual-voltage systems to enable Crossrail to run on the third-rail system? Secondly, AirTrack will be a BAA service, just like HEx - so BAA will purchase & run their own trains for their services....not state-owned Crossrail trains. Those with local route knowledge can fill me in here, but once the link is made, basically would dual-voltage stock (one assumes Bombardier will have recovered from their supply line and quality management difficulties by then -;) ) provide a through Crossrail all-electric service? Getting the Crossrail stock from the new Platform at REading back to it's depot will also be somewhat of a challenge, as there is no connector in the plans from the Airtrack line into Reading with high- nuumbered Reading platforms, and thus a route to the depot. It's self- contained. There is also an AirTrack depot shown in those plans, but I can't remember where it was to be located.... The enhancements of the track at Reading as part of the £425 million station redevelopment would also pave the way for Airtrack trains to use the station. Network Rail is also working with the Department for Transport and British Airports Association (BAA) on the scheme to connect passengers directly to Terminal 5. Yup - that's the new platform on the south-east side of Reading together with the BAA-owned route into the airport. \Nothing to back up the Crossrail stock being used there. 6. Given the time frames for Crossrail, and the rather modest scope of AirTrack in comparison, could it be that AirTrack is up, and through electric services running Paddington - Reading before Crossrail starts? Quite likely - another reason that it won't be using Crossrail stock. It won't be built in time.... 7. While HConn only goes to H123 (old H Central, made more sense!), AIUI that's a commercial decision. The AirTrack scheme clearly envisages HConn/Crossrail coming into the H5 box and extending west out of it. Proof please - just where does it state or heavily hint this is the case? I understood they will be using separate platforms at T5, with no connections. What happens to HEx and links to H123 then would be influenced by the commercial imperitives of the day. Possibly - but currently BAA have a long contract with the DfT, and by extension, NR, to run HEx services to HCen & T5. Something BAA won't give up unless *they* want to do so. |
Sense seen on Crossrail at last?
"DW downunder" noname wrote in message ... 5. Also absent from discussion so far has been AirTrack. In some other forums, we hear that BAA are firmly behind AirTrack. AIUI, provision has been made in the Heathrow 5 station box for them. The discussion suggests that HConn/Crossrail will run through to Reading via H5 and AirTrack. Those with local route knowledge can fill me in here, but once the link is made, basically would dual-voltage stock (one assumes Bombardier will have recovered from their supply line and quality management difficulties by then -;) ) provide a through Crossrail all-electric service? 7. While HConn only goes to H123 (old H Central, made more sense!), AIUI that's a commercial decision. The AirTrack scheme clearly envisages HConn/Crossrail coming into the H5 box and extending west out of it. What happens to HEx and links to H123 then would be influenced by the commercial imperitives of the day. The latest Airtrack plan (linked below - consultation closed) differs from your understanding: http://www.baa.com/assets/Internet/H...sultation2.pdf It is Heathrow Express they propose extending to run to a new bay platform at Staines via T5, and the Airtrack trains will run from Reading/Guildford/Waterloo to T5 only AFAICT. All indications are that Heathrow Connect (tbrb Crossrail) will continue to run to T4... Paul S |
Sense seen on Crossrail at last?
"Chris" wrote in message ... On 6 May, 17:49, Mizter T wrote: Except that (if I've got this right) in the evening peak you can use off-peak tickets on the slower Turbo services but not on the HSTs, at least for journeys leaving London - though to outsiders this information is rather hard to come by. Posters are up & visible at Paddington..... And that is unlikely to change under Crossrail - just that they'll need to change trains at Maidenhead / Reading.to get to Oxford in the evening peak. On 6 May, 18:01, "Peter Masson" wrote: "Chris" wrote It won't be cross-platform - fast London's will leave from current platforms 8 & 9, the slows / crossrail would be from the 3 extra platforms (behind current Plat 9 and a further island platform to the north of that. AIUI existing 5 & 8 will be the Down Main platforms, 9 and a new face opposite it will be theUp Main platforms, and the Relief/Crossrail platforms will be two new islands beyond that. You are correct - I got my current platform numbers in a mess! On 6 May, 18:39, Roland Perry wrote: I thought the residents in the vicinity of Maidenhead were opposed to the ugly looking OHL? Or have they come to terms with it now. Do they have any choice? Permitted development on the railways means that they don't need planning permissions.... On 6 May, 20:22, GazK wrote: Oh yeah? Do you know just how large these two projects are? Not a hope in hell..... Sorry to contradict, but they are being developed by a single NR team, with a single manager at the helm. I know this to be true because he gave a presentation last week, at which I was present. Thanks for this update. On 7 May, 09:05, "DW downunder" noname wrote: 4. NO-ONE has mentioned the plethora of hybrid battery-equipped rollingstock currently prototyped, on trial, in low volume production etc around the world. Given Crossrail's gestation, can I assert with some confidence that by then it will be quite normal for trains to extend a moderate distance beyond the wires or juice rail. 25kV to Reading would not necessarily be a pre-requisite to CrossRail service by the mid-10s. As a mechanism purely for getting ECS Crossrail stockl to / from the Rwading Depot & Maidenhead - yes, I guess this would be a possibility. 5. Also absent from discussion so far has been AirTrack. In some other forums, we hear that BAA are firmly behind AirTrack. AIUI, provision has been made in the Heathrow 5 station box for them. Correct. The discussion suggests that HConn/Crossrail will run through to Reading via H5 and AirTrack. Hmmm - brains trying to do overtime again?.....not a chance! Why on earth would the DfT want to spend a lot extra on dual-voltage systems to enable Crossrail to run on the third-rail system? Secondly, AirTrack will be a BAA service, just like HEx - so BAA will purchase & run their own trains for their services....not state-owned Crossrail trains. Those with local route knowledge can fill me in here, but once the link is made, basically would dual-voltage stock (one assumes Bombardier will have recovered from their supply line and quality management difficulties by then -;) ) provide a through Crossrail all-electric service? Getting the Crossrail stock from the new Platform at REading back to it's depot will also be somewhat of a challenge, as there is no connector in the plans from the Airtrack line into Reading with high- nuumbered Reading platforms, and thus a route to the depot. It's self- contained. There is also an AirTrack depot shown in those plans, but I can't remember where it was to be located.... The enhancements of the track at Reading as part of the £425 million station redevelopment would also pave the way for Airtrack trains to use the station. Network Rail is also working with the Department for Transport and British Airports Association (BAA) on the scheme to connect passengers directly to Terminal 5. Yup - that's the new platform on the south-east side of Reading together with the BAA-owned route into the airport. \Nothing to back up the Crossrail stock being used there. 6. Given the time frames for Crossrail, and the rather modest scope of AirTrack in comparison, could it be that AirTrack is up, and through electric services running Paddington - Reading before Crossrail starts? Quite likely - another reason that it won't be using Crossrail stock. It won't be built in time.... 7. While HConn only goes to H123 (old H Central, made more sense!), AIUI that's a commercial decision. The AirTrack scheme clearly envisages HConn/Crossrail coming into the H5 box and extending west out of it. Proof please - just where does it state or heavily hint this is the case? I understood they will be using separate platforms at T5, with no connections. Some of the comments from online dox: A. http://www.heathrowairport.com/asset...w_Brochure.pdf 1) "Other benefits of the new, environmentally friendly services include: improved rail services in areas to the west of London and in the Thames Valley improved public transport access for the local community to Heathrow Airport and its associated transport connections into London including Heathrow Express, Heathrow Connect and London Underground services ... " 2) "BAA also has an aspiration to extend the Heathrow Express service to Staines. This would mean an additional two trains per hour in each direction. ... " 3) "The purpose of this addendum to the initial public consultation brochure is to clarify how Heathrow Airtrack trains could be powered and the options that are being considered. Overhead Line or Third Rail Electrification? At the Heathrow Terminal 5 station it is not feasible, for technical reasons, to operate Heathrow Airtrack trains with third rail electrification. Therefore trains in the Terminal 5 station and tunnels will be powered using overhead line electrification (OHLE). OHLE involves a system of supports to hold electric cables some 4-5 metres above the tracks. This system is currently used by Heathrow Express trains operating between London Paddington and Heathrow Airport. As the existing rail network uses third rail electrification it will be necessary to change from third rail to OHLE at some point between the Heathrow Terminal 5 station and the rail network in Staines. The Options Three options for making the change from OHLE to third rail electrification are currently being considered: 1 change over as close to the tunnel entrance as possible, while trains are moving. It is possible that in this option the overhead lines may not need to extend onto the SSSI at Staines Moor 2 change over from OHLE to third rail electrification at the new Staines High Street station, while trains are stationary 3 run OHLE all the way to the existing Staines station. This option would allow Heathrow Express services, which currently use OHLE, to operate to the existing Staines station and is favoured by BAA for that reason In addition, the adaptation of the current rolling stock used by Heathrow Express is being considered. If it is possible to adapt the trains, the need to extend OHLE to the existing Staines station could be avoided. One of the benefits of extending the Heathrow Express service to the existing Staines station is that there would be a direct service from Staines to London Paddington. Passengers using other services from London Waterloo would also benefit from a more frequent service to Heathrow Airport, as they would be able to interchange at Staines station and board a Heathrow Express train. ... " B. |
Sense seen on Crossrail at last?
"Paul Scott" wrote in message ... "DW downunder" noname wrote in message ... 5. Also absent from discussion so far has been AirTrack. In some other forums, we hear that BAA are firmly behind AirTrack. AIUI, provision has been made in the Heathrow 5 station box for them. The discussion suggests that HConn/Crossrail will run through to Reading via H5 and AirTrack. Those with local route knowledge can fill me in here, but once the link is made, basically would dual-voltage stock (one assumes Bombardier will have recovered from their supply line and quality management difficulties by then -;) ) provide a through Crossrail all-electric service? 7. While HConn only goes to H123 (old H Central, made more sense!), AIUI that's a commercial decision. The AirTrack scheme clearly envisages HConn/Crossrail coming into the H5 box and extending west out of it. What happens to HEx and links to H123 then would be influenced by the commercial imperitives of the day. The latest Airtrack plan (linked below - consultation closed) differs from your understanding: http://www.baa.com/assets/Internet/H...sultation2.pdf It is Heathrow Express they propose extending to run to a new bay platform at Staines via T5, and the Airtrack trains will run from Reading/Guildford/Waterloo to T5 only AFAICT. All indications are that Heathrow Connect (tbrb Crossrail) will continue to run to T4... Paul S You are correct, Paul - and elsewhere in the thread I cite quite a few sources. There is one from TfL which very clearly wants Crossrail worked through onto AirTrack. I comment on the issue of the HeX monopoly on access to the H5 station box from the east as being basically a BAA commercial decision, and 5+ years is a lot of water to pass under the bridge yet .... By then, the commercial imperitives may point to a more eclectic approach to train use on the HeX route from HC to H5. David |
Sense seen on Crossrail at last?
"DW downunder" noname wrote in message ... You are correct, Paul - and elsewhere in the thread I cite quite a few sources. There is one from TfL which very clearly wants Crossrail worked through onto AirTrack. I comment on the issue of the HeX monopoly on access to the H5 station box from the east as being basically a BAA commercial decision, and 5+ years is a lot of water to pass under the bridge yet .... By then, the commercial imperitives may point to a more eclectic approach to train use on the HeX route from HC to H5. I think previous discussions have noted that without major work the box under T5 does not allow for through running to the east from the Airtrack platforms, and only a single connection from one of the present HEx platforms to Airtrack, with a junction west of the station. It looks as though a certain degree of inflexibility has been designed in. Intentionally? Paul |
Sense seen on Crossrail at last?
In message
, at 04:29:07 on Thu, 7 May 2009, Chris remarked: I thought the residents in the vicinity of Maidenhead were opposed to the ugly looking OHL? Or have they come to terms with it now. Do they have any choice? Permitted development on the railways means that they don't need planning permissions.... Maybe, however Wikipedia claims the Crossrail Environmental Statement includes: "It is proposed that the OHLE over Maidenhead railway bridge will use masts with wires suspended from cantilevers, since these will be visually lighter structures than the gantries to be used along other parts of the route. The masts will however, have a significant adverse landscape impact: they will affect important views along the river and the character of the river corridor; they will affect the setting of the Riverside Conservation Area; and they will affect the setting of the listed railway bridge and the setting of the adjacent Grade I listed road bridge. -- Roland Perry |
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