Thursday 22 December 2016

Tower Blocks for Norwich

Having turned my non-existent training in urban planning to solving all the problems of Liverpool, I have decided to have a look at some other places I have been to, this is going to be quite a short list but I thought I'd start with Norwich, a place I quite like.
National Library of Scotland side by side, modern & historic map.
One of the main problems that might face Norwich is where could it expand without destroying its current atmosphere? The answer is provided by the disused route of the Lynn and Fakenham Railway line. The red line below.

Using this route to provide access to a new high rise zone to the north of the city, about where the industrial estates are. It would not only be reinstated as a rail line but also as a cycle and walkway, to provide quick access to the city centre for work etc.
The line would be extended through the city to the current railway station by a new build tram line, in blue above. This would act as the core line for a future Norwich tram system.

Tram

The reinstated line would not be heavy rail but would be light allowing it to connect to a tram line, which could connect to the mainline railway station, then using a tram/train concept out on the Brecklands line towards Attleborough or the various railway lines, current and disused, to the south and east of Norwich, providing the city with  a proper light rail system, including the Norfolk Orbital Railway.

While it isn't the cheapest I think Norwich would be a suitable place for a modern ground-level power supply type of tram, the Bordeaux tramway being an example.

Buildings

Just in case any is concerned about the idea of tower blocks, perhaps I should have said sky scrapper but it this kind of thing I had in mind, which are current proposals for Liverpool, from a distance they would provide a great view of Norwich and look good when looking from the city centre out.
From the Liverpool Echo

From the Liverpool Echo

Monday 7 November 2016

Paddington Village

Paddington Village: Spatial Regeneration Framework

By council standard's this is quite short at only 53 pages of A4 or 105 pages of A5 depending how you look at it. It has a contents page with no internal hyperlinks. Hypertext was first postulated in 1945, first implemented in 1968, it would be nice to think the council could actually use them properly by 2017? Producing documents to the PDF/A format allows internal links, it is ridiculous to produce a document that is not designed for e-reading.

What I actually said

I believe that the location of the car park is flawed. Placing a multi-storey car park directly over the railway cutting is the sensible things to do. This has been done in several places in the UK. Other structures have also been built. In Liverpool, the section of cutting through University Place has been covered. See http://peterirate.blogspot.com/2016/09/the-green-line.html for more details. This frees up more space for buildings or green infrastructure.
Not only should green roofs be encouraged on site, so should green agriculture see http://sustainablefoodtrust.org/articles/can-urban-growing-feed-cities/ & http://www.youtube.com/watch?v=S2xyUsHSRdk & http://www.huffingtonpost.com/x-prize-foundation/urban-farming-hits-the-ro_b_8149592.html Space is limited but as with the railway cuttings no space should be left unused. It is a pity that with Networks Rails proposed remodelling of the Lime Street Approach the opportunity is not taken to enclose the cutting.
Additional pedestrian and cyclists connections to Edge Hill station should also be incorporated.

What I meant

The lack of recommended uses for the roof space is a bit worrying. A building properly built with a roof that uses the sunlight for one purpose or another is making full use of the land if that roof is also used for growing things then it could be argued that it is a zero loss of green space as far as biology is concerned.
The other thing was how rectilinear all the proposed designs where I do like some curves in the buildings.


Wednesday 5 October 2016

Aldi The Village Bakery Eccles Cakes

One of the finer things in life is the Eccles cake, with its light flaky pastry it is far better than the dry husk of a Chorley cake or Welsh cake, these inferior products show that the sum is not always greater than the parts. A true Eccles cake warm is a fantastic thing, with a light custard or vanilla sauce, well worth the risk associated with such a things, especially if you wear the recommended safety gear.

If you can get to Sayers just after the have been taken out of the oven then you are in luck, these are possibly the best Eccles cakes in the world. The Aldi cakes are of course prepared off site and come plastic wrapped but they are wonderfully moist and perhaps just a little too sweet, the slight tang of the fruit is missing but all in all a very good effort, especially at about 95p, compared to about 160p for Real Lancashire Eccles Cakes which are too close to a Chorley Cake for comfort and rather dry.

I do not bake but this looks like a decent recipe to me
Hobbs House Bakery, though there a plenty out there and extra bit of zingy zest does not go amiss.

7.5 out of 10, best you will get in a plastic pack or cold from Sayers etc. 


Sunday 18 September 2016

Hell in the PDF:Liverpool’s Draft Local Plan Consultation

Liverpool’s Draft Local Plan Consultation

First impressions

This is possibly one of the most tedious documents I have ever read. Though given the subject matter that is entirely excusable. What isn't is that in this age of PDF files with hypertext ability and portable e-reader when the draft is provided in a PDF form that none of the advantages of the format is used. this is clearly a document designed to be printed and at 301 pages that will not be cheap. Far better in this day and age to take full advantage of the technology available and have the print version slightly compromised, than the other way around.

In the beginning

The first 5 chapters are mainly descriptions of the city and its history which are not really controversial or interesting, at least from my point of view. I will point out that the line "Liverpool lies at the heart of the former county of Merseyside" is wrong. The county still exists it is only the metropolitan council that was abolished.

Chapter 6: Liverpool City Centre

6.7/6.8 Commercial Quarter/Pumpfields

The first thing that occurs to me on look at map 1, is that I've always assumed that the centre goes further north. The map seems to truncate it at Kingsway. I would include the area bounded by Vauxhall road and Sandhills Lane. This is in part just down to my own judgement but also based on its history, with the likes of the Tate and Lyle factory. I view the Eldonian village as being misplaced, a prime example of land that should have been reserved for industry/business or high-density housing, not a semi detached suburb. The area should be treated as an extension of Pumpfields and be of similar mixed-use high density. This would blend in with Liverpool Waters and help provide the commercial space needed by providing some large plots without the restrictions of the World Heritage Area.

6.10 The Waterfront

If the city centre is extended up to Sandhills Lane, then this area should be extended at least to include Stanley dock and incorporate all the docks, not in their original use. Putting a boundary through them will just make planning difficult if there are conflicting requirements in the different divisions.

6.38 Historic Quarter

Sandwich between the Commercial and the Historic quarters is the area between Dale Street and Exchange street. This area needs some special attention due to the street layout, which is amongst the oldest in the city. The area around Hackins Hey has great potential with the current street layout. Development in the area needs to take advantage of this intimate possibly medieval street layout and produce an area with character. To just bulldoze it for a large office block what not use it to its greatest advantage. It will require an imaginative scheme, which keeps the current street layout.

6.41 Residential Neighbourhoods

The document talks about Marybone first, which seems to be a totemic place for the council and refers to it and later L1 as Older established areas with low-density housing. While people have lived in these areas for a longer time,the low-density thing is a fairly recent, thing as can be seen in this picture of Fontenoy Gardens, in Marybone, Gerard Gardens was over the road.

Fontenoy Gardens
and these in L1.

Kent Gardens
Sussex Gardens
The move to low density has changed the character of the area, I think some plans need to be put in place to turn it back to high density. In addition to these areas mentioned I'd want the area previously occupied by Myrtle Gardens and some of the other "Gardens" recovered, as well as the Eldonian village.
While people complain about tower blocks, there seems to be nothing but nostalgia for this size of buildings. Designed and built properly they can be fit for the modern era and at the same time take pressure off the green belt. Within the City centre area, there needs to be a minimum density specification as well as a minimum height for new residential. Some buildings in Marybone adjacent to Leeds street do seem to conform to something like the requirements, but semi detached do not.
I'm not sure of the ownership of these buildings but an active plan that respects the rights of the people to live in the area and maintains the standard of their housing, but works toward moving to a higher density regime, should be put in place. Semi detached have a place but it is not in the city and not in any area that is urban. I think this is a necessary step but one that would require more bottle than the council has, even to suggest it.

6.115 Transport and accessibility

Mention is made of reopening a St James station and the provision of a new station for Liverpool Waters. Later in  14.9 the Edge spur is referred to, though only the Wapping Tunnel option mentioned. The Merseyside Area land use Transportation study (MALTS) project report of the late 60s makes similar costed proposals and offers an alternate plan which seems to be better. I have outlined possible further changes in my blog A New Edge Hill. The proposals made by the Mayor for Paddington Place station would seem to rely on using the Victoria tunnel


This would use the complete length of both Wapping and Victoria tunnel which in addition to the link to Central would provide a link to the waterfront. The two tunnels being linked by tram lines and a full train tram service providing a loop from Edge hill.
In the council's document, there is no mention of Trams or Train/Trams, which seem to reflect a bias in Merseytravel rather than an objective view. In 14.8 the tunnels are described as having a junction with the Northern Line, no such junction exists or has ever existed.

7 Employment Land and the Economy

Several references are made to the knowledge economy, this is a very wide area, I would suggest emphasising some more specific areas. Some mention has been made in other places of what is fundamentally Industry 4.0, this and several other areas could be emphasised. Perhaps 1 could be medical science, building on the current base and the proposed Royal College of physicians. It may advisable to look to a way of exploiting the renewed interest in space-related activities, while launch and recovery are unlikely, mission control is not, which could be extended to include the control of commercial UAVs/Drones globally. The exploitation of UAVs in urban environments might be a tag.

7.33 Liverpool John Lennon Airport.

The extension of the runway and a decent rail connection are important. The extension into the river should be considered. While the protected status is a problem, provided some remedial work is undertaken such as removing part of the dry land to keep the mud flat area the same or perhaps greater, the nature of the reserve would allow quick recovery of the reserve. See needs to be longer at Liverpool.


8 Housing Provision

8.1.2 Land at Chaucer Street, Grosvenor Street, Juvenal Street & Peover Street

I think this area may conflict with area desired by Merseyside Police for their new HQ. This and the area once occupied by Gerard Gardens to the south is a prime site for high-density development. Merseyside Police should not be allowed to squander it on a low rise building and worse still with above ground car parking. See Cops getting away with daylight robbery.

8.1.5-8.1.8 Land Between Great Mersey Street and Lancaster Street

This and several other plots along Scotland road are identified. I believe these need to be at least terraces designs and preferably above 2 stories, simply to give the feeling of entering the city centre. This need for some theatre on the main trunk routes into the centre does not seem to be addressed, another place that this needs to be taken into account is West Derby road, Edge lane, Park Road and the bottom of Kensington.  The areas outside of them have become separated from the city centre psychologically if not physically.

10 Urban Design

The rise of the car, though it has been going on for over a century still seem to be problematic. With it comes the need for car parks, which are in all honesty a waste of space, unless there is a very good reason all parking space associated with new build should be within the footprint of the building, either underground or as an undercroft.

12 Green Infrastructure

This part of the document is incomplete and waiting on Simon O'Brien's report.

One of the first things mentioned is the creation of 2 new woodlands. One I suspect is the park Melrose Meadows in Kirkdale. The other may be Grant Gardens, a park which had 0 visitors on a bright May bank holiday. Personally, I would like to see it naturalise itself, it would be a good educational resource as it went through the process of Ecological succession.

12.53

A couple of comments are made about the impact of trees, which are I think inaccurate, firstly there is the mention of oxygen generation, this is quite minor especially for deciduous trees, most of the atmospheric oxygen comes from phytoplankton. The second is carbon uptake, it is true that trees do take up carbon but they do that mostly while they are young, once they reach maturity the carbon uptake drops dramatically. To improve the impact, once a tree reaches maturity, it needs to be felled and objects made of it, while a new tree takes up its space. The trees and the wood they produce need to be seen as a resource and a crop in order to maximise carbon capture.
Trees are far more important than grass, any area that is kept as only grass, is an oversized lawn and either needs to have a use as a sports pitch or be left to return to woodland. If someone can find a way of introducing red squirrels and excluding greys even better.

14 Sustainable Transport and Accessibility

14.25

In addition to the routes names the routes to Wigan, Warrington Wrexham, Preston and Manchester need considering. Viewing rail connections as IntraCity, IntraRegional or InterCity makes a gap in the IntraRegional rail apparent. A journey from Kirkdale to Salford Crescent is slow and makes that commuter route untenable. This sort of IntraRegional link needs to be addressed perhaps by decision between Mersey Travel and adjacent Transport Authorities, rather than with London. See  Liverpool does not need HS3 to connect to Manchester, it needs it to connect to Leeds.

14.31

A train/tram line along the route of the old overhead railway, perhaps even a raised line, with connections to Edge Hill via the Wapping and Victoria tunnels should be considered.



Saturday 3 September 2016

Lymm to Lime Street

Having worked out a route for HS2 to connect to Liverpool with minimum fuss and cost I thought I had better price it. I found some estimates done in 2007 by Network rail for upgrading various lines to GB & GC gauge to take double decker trains or extra long trains. It is Version: 1.21Preliminary Evaluation of Double Deck Extra Long Train Operations Table 1.3 provided most of the information.


The plan I outlined requires the upgrade of the Ditton to Lime Street section which already has OHLE, so I used the figures for the London-Ipswich Route which is similar.

For Bank Quay to Ditton, the line exists but is not electrified, so I took the low from London -> Brighton and the high from London to Southampton.

To estimate the reinstatement of the line from East of Lymm to Bank Quay was a little trickier, I took the numbers from HS2 own estimates for Phase 2 and took out the irrelevant bits. Such as there being no Tunnels this gives a cost of £64 million per mile of which on £17 is construction costs.


Route Miles Min m£ Max m£ Low Per Mile High Per Mile
London →Brighton 51 810 1200 15.8823529412 23.5294117647
London →Ipswich 68 890 1340 13.0882352941 19.7058823529
London →Southampton 79 610 1440 7.7215189873 18.2278481013
London →Oxford 63 800 1720 12.6984126984 27.3015873016
HS new build


64.375 126.333504






Ditton-> Lime Street 10 130.8823529412 197.0588235294

Warrington BQ->Ditton 8 61.7721518987 188.2352941176



192.6545048399 385.2941176471







2007->2016 Pounds 1.31 252.3774013403 504.7352941176







East of Lymm 8 515 1010.668032







Total 26 767.3774013403 1515.4033261177


from my spreadsheet East of Lymm to Lime Street.

If we take the cost of East of Lymm down to just construction, then the total cost is £469m, if you wanted you could knock another £130 million off and just have the classic compatible running into Lime Street. I'm assuming that there would be little to saved by using only W10 on reinstatements and upgrades. So that should be done to GC gauge.
These numbers do not include building a new station at Lime Street or a complex remodeling of Ditton junction, to bring the lines in from Warrington to the centre 2 without crossing at grade, which would be needed for optimal performance, as would a complex junction between HS2 and this spur or the extra work needed on the viaduct over the Manchester Ship canal. Nor does it involve and remodelling of the route around Warrington Bank Quay. This is simply to get the trains through with no traffic.
So a cost of between £0.5 billion and £1.5 billion doesn't sound unreasonable, just to be on the safe side say 1 billion. It is still less than Liverpool City council offered to pay.

Thursday 11 August 2016

Nimrod reborn

If you grew up in the 70s or 80s the RAFs Nimrod was a common sight on TV and in the sky. It was based on the de Haviland Comet the world's first Jetliner, sometimes referred to as the pregnant comet. There were several attempts produce a different version of the aircraft. The last 2 the AEW3 and the MRA4 never entered service but did cost a lot of money, the cancellation of the projects very near to completion was controversial as was the capability gap left by the MRA4.

Remains of MRA4

A lot of the MRA4s problems were put down to trying to graft new wings onto an old fuselage, designed and built before the days of computer-controlled machining, basically, every airframe was different. The decision to do this part replacement was always controversial, BAe did not want to do it but HMG insisted, the logic was unclear but to me, it seems flawed and possibly the product of some accounts wizardry. Now 6 years later we are left buying Boeing patrol Maritime Aircraft and with the intellectual property to build half of a new aircraft.
The RAF still has large capability gaps, which need filling, the MRA4 for all it fault had some impressive capability, most notably it's range of about 7000 miles, which exceeds the range of any of the V-bombers. With a bit of work and a few 100 million quid, you could build a new aircraft using all the new bits designed for the MRA4, wings, engine, flight avionics. Design a new fuselage and you have a decent airframe with potentially many uses. Let us call this the Large Combat Airframe(LCA), it not stealthy it's not at the bleeding edge of anything, but it is big, it has a bomb bay and it can carry a large combat crew.
I propose the following:

1st Production line

First, a new fuselage is designed, with a bulkhead between the cockpit and the main body. That cockpit is a self-contained 2 man unit, that the crew enter via a ladder up the landing gear, possibly it has ejector seats. The tail is a V tail because while this isn't a stealth aircraft there is no point in giving it a radar cross-section bigger than needed.  The rear section is as bare as possible, perhaps some cables hanging down from the roof, for use later.
There is a full defensive avionics fit, and the passenger section can be empty and unpressurised. The rear bulkhead has a door in it and some steps for self-loading, or if it can be done, wide enough for parachuting from. There is at least 1 big cargo door, perhaps a full quarter section, through which modules/pallets can be loaded into the top floor pre confined for the specialised roles.
The only state of the art bits I'd consider is Fly by Light, as used by the Kawasaki P-1, which is fly by wire but using fibre optics rather than heavy wires and Power by Wire, partly used on the F-35, which eliminates all those heavy hydraulics and replaces them with light wires. Similar Unites where used onbothe the Vulcan and VC-10 there where referedto as Powered
Flight Control Units
or Electro-hydraulic actuator When it rolls off the production line underneath is a big hole filled with a stress-bearing structure to make the airframe flyable. It fully equipped with defence avionics it might even have wing hard points for general use but other than flying up to the enemy and waving it is useless.

2nd Production line

This is where the aircraft is specialised. 

Nimrod:Andraste Bomber standoff, bomb bus or patrol

If you want a bomber, you take out the lower blanking structure and bolt in a bomb bay, perhaps not the whole length of the aircraft. The front section is fitted with a designator pod, while the rear section has some extra intelligence gathering, extra fuel tanks go above in the unpressurised rear section so if it takes a small hit no problem.

Nimrod:Sulis Maritime Patrol

A bit smaller bomb bay, this time, the front underneath section if fitted with an observer post were the MK1 RAF eyeball can be put to best use. The rear module fitted with a module for dropping sonar buoys.

Nimrod:Toutatis Arsenal plane

Full-length bomb bay stuffed with all sort of effectors.

Nimrod: Coventina Forward refueller

With all the defensive avionics you can put this a lot near the front line than a converted passenger jet, just put tanks everywhere.

Nimrod Belatucadros: Defended transport.

To haul personnel and machinery it to the hotter spots, perhaps drop them off via the back door. Use the bottom as a cargo bay.

Nimrod:Vinotonus Standoff Radar.

A bigger version of Raytheon Sentinel.

Nimrod:Visucius ELINT/SIGINT

Well it should be quiet with the Fly by Light

Nimrod:Alaisiagae Forward UAV/Drone control.

Pilots flying planes from Planes.

Nimrod:Clíodhna


Other users

If you were France/Germany/Indian or even the US you could buy airframes of the 1st production line and then fit them out yourself. You would benefit from the reduced cost of the production line of the airframe and then tailor it to your own use.
The US has made good use of the C135 in a fair number of these roles, and it wasn't designed for such flexibility.

Reconfiguring

If the production of a dedicated version is a 2 stage process then perhaps the 2nd stage can be undone, allowing a fleet to be reconfigured perhaps not on the front line and not overnight, but an airframe that could go from a transport to full armed bomber in a month would make for a very flexible fleet. It would also allow for upgrades with far less downtime.

Thursday 12 May 2016

Wolstenholme Square 75 years and back to Square one.

Some of you may have heard of Liverpool nightclubs, Cream, The Continental and The Kazimier, few of you will know they sat on Wolstenholme Square. For a more detailed history see liverpool1207.

At the beginning of May 1941, the square looked like this. Nice buildings but only a paint factory



In May 1941, along with other parts of Liverpool it was the subject of an unscheduled redevelopment by the Luftwaffe. Unscheduled as far as the owners and Liverpool were concerned but I'm sure the Luftwaffe had a very thorough schedule.
From Liverpool1207
The post war rebuild was not of the same quality as the original even with the stone cladding, I went to the Continental thrice and hated it, which is good as I normally loath night clubs.



75 Years after the original Luftwaffe redevelopment it now looks like this flattened again in May 2016 by Mee's Demolition, this time, the owners knew.




Soon the rebuild will start, back to, if not its former glory, then to at least a more respectable height.


For more details see Falconer Chester Hall Wolstenholme Square

You might not like it but the buildings that housed the clubs were cheaply put up after the war, this is a timely rebuild. Everyone will still have their memories of nights out, in my case, despite lots of therapy. There is nothing lost in this particular redevelopment, it is the final scab falling off a war wound. One more bomb site gone.


Wednesday 11 May 2016

Hydrocarbons for peace.

There are few people more enthusiastic about electric cars than Robert Llewellyn, better known to some of you as Kryten from Red Dwarf, here is one of his video blogs regarding Orkney.I don't have a problem with most of it but I'm a little concerned about some of Rob's attitudes to hydrocarbons, not the fossil variety or even the biologically variety but the totally synthetic stuff. You can see Rob's opinion when he is shown the old diesel plant, which, I imagine is still kept in good condition to back up the wind.
Orkney's power system is a hierarchy. the first tier is power being generated and then used immediately, the next stage is the large battery, followed by presumably the interconnector or the diesel, then the other.
One a windy sunny and warm day, Orkney will be generating more power than it can use, the batteries will be full and the interconnect will be maxed out, what to do then? Well, the hierarchy seems to be different for using excess generated power that it is for generating power, the diesel section is missing.
Storing electrical power in batteries is highly efficient but the energy density is low and over time the batteries discharge, this means they are good for short term storage. I wonder how long Rob has left one of his cars to see how good the batteries are, it something I'm having trouble finding out.
The US Navy has been developing a system for producing Jet Fuel from sea water on its Nuclear Powered Aircraft carriers. See Fueling the Fleet, Navy Looks to the Seas  and US Navy Announces $3/Gallon Jet Fuel from CO2. So the diesel's part in the hierarchy could be restored.
Rob's criticism of the diesel as being "dirty", might be seen as a reason not to do it, but the dirty bit of diesel comes from impurities in the fossil fuel, others comes from the incomplete combustion of diesel due to a large variety of hydrocarbon compounds in the natural mix. The production of wholly synthetic fuel eliminates most of the impurities and allows the fine tuning of the compounds in the synthetic hydrocarbon, which allows the combustion process to be optimised to minimise particulate output. My own choice for the compound would be Hexadecane (C16H34) but chemists might pick a better compound.
There are other alternatives for longer term storage, such as Cryogenic energy storage, which may be more efficient in the short term, but the one thing that is know about hydrocarbons is that they are stable for a long term, they can survive underground. So while over a few months or years the Nitrogen will boil off, if extra power isn't added.
We also have large amounts of infrastructure to transport and store hydrocarbons, if we one day our fuel stores are full and our environmental plants are producing the power that is needed then, we can put some of the hydrocarbons back where the fossils came from back underground, helping to reduce the excess CO2 in the atmosphere.
Synthetic diesel is a very high-density energy store, there might never be a day when batteries have a high enough energy storage for long range air travel or to produce the power for some of the world's biggest machines, they may but synthetic fuels will be there as a backup and very long term store.
If and when we move to a fusion powered world, we can get rid of windmills we can still make synthetic diesel for those off grid needs, we still pump it underground and Rob's mate Chris can still drive around in his vintage motors.
Whatever we do we need a hierarchy of storage and synthetic diesel seem to be a good candidate for the long term tier as well as for various niche applications. It is no use being sniffy about it, we cannot waste the ideas and material we have invested in hydrocarbons.
The one thing that is gone for good for future cars is the mechanical transmission, the superiority of electric transmission and it ability to match the prime mover speed to produce the energy need efficiently is better than mechanical CVT. 

Wednesday 16 March 2016

Liverpool HS2/HS3 Junction

I have given some thought to the junction that would link my preferred HS2/Liverpool link to
the planned trunk. The requirements I set were a straight through connection to Manchester without using the main north-south trunk, no increase in the set of points on the main trunk and keeping speed as high as possible.
In the end, I came up with 3 options the Option 1 fulfils all these criteria, with minimal changes to the existing HS2 phase 2 plan. Option 2 would require some changes to keep the number of points down, while Option 3 is the simplest and comprises most of the principles, but is the one with the least new land take but also the slowest speeds, due to the tight radii of the curves. In order to keep within HS2 already published acceleration and speed requirements the line around the junction would need to be quaded but this, I believe has been allowed for in the original plans. I have assumed that the route to Liverpool uses the Warrington and Altrincham Junction Railway at least through Warrington.
The maximum speed that seems acceptable on curves is given by the table below, the data is taken from Minimum railway curve radius with the diagrams I have had to approximate the curves.

Curve radius ≤ 33 m/s
= 73mph
≤ 56 m/s
= 125mph
≤ 69 m/s
= 154mph
≤ 83 m/s
= 185mph
≤ 97 m/s
= 216mph
≤ 111 m/s
= 248mph
Cant 160 mm, cant deficiency 100 mm, no tilting trains 630 m 1800 m 2800 m 4000 m 5400 m 7000 m
Cant 160 mm, cant deficiency 200 mm, with tilting trains 450 m 1300 m 2000 m no tilting trains planned for these speeds

North Junction

The existing proposal for phase 2 includes a junction north to east, I am not entirely sure why, given current plans have the GC route finishing before Wigan, any trains from Manchester north would have to be classic compatible and   already some routes north available via those, the same is true for Liverpool northward. So, for the purposes of this blog, I will consider the routes north to be optional though I will leave the existing planned line in red.

Option 1

DIagram of a junction bwteen a reinstated Warrington and Altincham line and HS2. The disused Altrincham line crosses from the west at thetop of the picture. A large chord curves around to the south connecting to the southern spur of the junction proposed in the HS2 phase 2 document, heading south. A reflex chord departs and joins the route into Manchester.
This arrangement fulfils all the criteria keeping to radii of over 5000m allowing running speeds of over 200mph. It would eliminate the north chord suggest for phase 2 and replace it with a longer chord further west. It would, however, entail going through 270 degrees to transit between Liverpool and HS2 north.
It is unlikely that such speeds would be permitted on the section of line from Warrington as it passes through some residential areas making the large radii redundant.

Option 2

A straight line departs from the Alricham line and heased south east crossing the route of HS2 and joing the manchester spur, a chord leaves half way along its lnegth and curves south joing the HS2 trunk heading south.
The simplest way to avoid some of the line speed restrictions would be to leave the Warrington Altrincham route earlier, to the west of Lymm close to the M6, to avoid steep turns it would mean leaving the route before the M6 so the existing under pass could not be used. It would involve taking a new cross country route of some 8km to link to the Manchester spur, with a chord to the south, which could use the same sets of points on the trunk as the Manchester spur.
To the north, the chord would have to be somewhat tighter and may involve adjustments to the north junction proposed for phase 2 in order to keep the points countdown. However,   geometrically it is the simplest junction and involves little change to the routings planned in phase 2.

Option 3

A very simple junction is provided with tight curves connecting the Warrington and Altrincham route to the HS2 route north and south.
This is by far the simplest option reusing the maximum amount of old right away and adding the minimum new track, it does this by sacrificing speed the curves from the Liverpool route to HS2 are of about 500-600m in radii limiting speed to 70 mph. There would no option but adding points to any northern routing.
However, if the section of line between the northern crossing was quad, all the way to and beyond the southern Manchester Spur, then the points in that direction could be kept the same and the quading would allow acceleration to full track speed. Access to Manchester is via the northern chord proposed for phase 2.
As a schematic it would look like

Conclusion

My simple conclusion is that Option 3 is the most likely. I doubt the extra speed of the other 2 could actually be realised. Option 2 may be the option that has to be picked to calm the noise concerns of the residents of Lymm.

Saturday 30 January 2016

WW2 and why my dad fought in it.

In late August 1939 my dad joined the RAF, some time later he found himself in North Africa, then Sicily and finally Italy. He was with fighting along side others from the following countries
 United States
 Free France
 Canada
 India
Poland Poland
 New Zealand
Union of South Africa South Africa
Brazil Brazil
Greece Kingdom of Greece
 Mandatory Palestine
 Belgium
 Australia
 Czechoslovakia

My dad died before I could ask him why he fought, especially as he joined up before the war had started and wasn't conscripted like so many of the troops. I am surprised how many supporters of UKIP, the EDL etc seem to think they know why my father and so many others fought, and want to claim that they are behaving the way they do in support of his goals and the sacrifices of his friends and comrades.
The one thing I am sure about is what the other side was fighting for and that seem to be more in line with the policies of the EDL and UKIP.
One thing that came out of WW2 was the European convention on human rights, which is presided over by the European Court of Human Rights. The leading UK advocate was a Conservative politician, supported by Churchill. See European Convention on Human Rights what UKIP and the Tory right are fighting against is the explicitly expressed wishes of hose who fought and led in WW2. In there racists and xenophobic speeches the are reproducing the messages not of the Allies but of the Axis powers, the only thing that exceeds their bigotry is their ignorance and stupidity.