ironstone11
Member
- Joined
- 3 Jan 2013
- Messages
- 217
The attachment is the present layout. ??
To avoid confusion, attached is Page 3 / Phase 2B only.
The attachment is the present layout. ??
The Up and Down Jericho is going to get a bit of a caning. I am still of the belief that if E-W really takes off then Oxford North is going to become the new Colwich.
That thing has got to be the largest footbridge I have ever seen - it really is huge.
And people wonder why we still have huge quantities of level crossings.
Varkman has hit the nail on the head, it has the potential to be a nightmare due to the conflictions if traffic really ramped up.
It has to be fit for purpose.
Why shouldn't 2 mobility scooter users be able to scoot side by side holding hands in public when a walking couple using the stairs can do so?
Perhaps we should simply wait and watch what th rebuild is going o be like when completed. Far too many guesses and personal thoughts, rightly or wrongly, just complicate everything.... I get pretty depressed with all the negativity that abounds these days. Whatever the new railway will look like it will be a fatastic improvement on it's present sad situation and something we shoul be rejoycing in, not complaining and criticising even before it it is built.
Well maybe you should try looking at the website giving details of the work programme, which I and others have linked to several times now in this thread
To avoid confusion, attached is Page 3 / Phase 2B only.
To avoid confusion, attached is Page 3 / Phase 2B only.
Pretty sure the "Wretchwick" name has been binned.
In the various drawings available online that I linked to earlier, post #573, the main line through Gavray Jn eastbound towards Bletchley is the Up Claydon, and westbound towards Bicester/Oxford is the Down Claydon, The Bicester Chord lines are labelled 'Up Wretchwick' towards Marylebone, and therefore 'Down Wretchwick' towards Bicester/Oxford. (These must presumably be named after Little Wretchwick Farm south east of Bicester.)
(As an aside - are you writing "Gravy Junction" intentionally, or is it being auto spell checked?)
Would gravy junction be where you'd see a gravy train?!
The bicesteroxfordcollaboration website (see extract post #686) mentions Up Bletchley/Down Bletchley. I'm not 100% certain but from the description Down appears to be towards Bletchley/Claydon as the work on the Down seems more advanced. The direction also fits with the junctions at either end at Oxford and Bletchley.
(As an aside - are you writing "Gravy Junction" intentionally, or is it being auto spell checked?)
That thing has got to be the largest footbridge I have ever seen - it really is huge.
And people wonder why we still have huge quantities of level crossings.
There are some new arrangements which I will have to check but currently north of the Banbury Road stone terminal it is treated as a siding.
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Line designations are Down Bletchley from Oxford to Bicester and Up Bletchley from Bicester to Oxford, nothing is named as yet from Bicester onwards but you would suspect that naming convention to continue. The Wretchwick name has been done away with and replace with "Bicester South West Chord", which doesn't roll off the tongue any easier....
The Wretchwick name has been done away with and replace with "Bicester South West Chord", which doesn't roll off the tongue any easier.....
To avoid confusion, attached is Page 3 / Phase 2B only.
In broad terms isn't the railway usage of "chord" because of the setting out method used to produce the curve? They couldn't set out a full sized curve by drawing a full size radius on the ground, so they would use offsets from a straight chord length to set out the arc.
So the railway 'chord' is named after the process used to generate it rather than the geometrical term?
L&Y 1793575 said:...somewhere in this thread maybe, someone has worked that out. He said "but isn't there a level crossing right there in the town? How often will that be closed? Closed more ot the time than open, I thought. Have we worked this out yet? Who knows?
Looking at the diagram (post 691) at the Oxford end, it looks as though a train for Bletchley etc. leaving what we know today as the Parcels Platform will take the Up Loop to gain access to the 'Up Bletchley '. That means the "Up Loop" has to be bi-directional, doesn't it? Otherwise our train will have to snake out onto the "Up Main, over onto the Down Main, then a little distance north snake over back onto the Up Main, then onto the Up Loop, and finally onto the Down Bletchley. NO, I dont think so! Pathing nightmare!
Ignore what is shown for Oxford. What is now the Jericho line will be made bi-directional and nothing will be required to cross the job.
Why do we call them "Chords?" Remembering my geometry, and thinking about the arrangment if drawn on plan, they are "Arcs", not chords. The chord associated with an arc is a streight line joining the two ends of the arc. I know these curved links have been called chords for decades by railway engineers, but it niggles every time I see it.
Just to confuse matters, we also have "Curves" on the railway, such as the Graham Road Curve linking the Slow Lines between London Fields and Hackney Downs with the NLL.
Looks to me from Google E as if there could be double track round the back (east side) of the carriage sidings as far as the Thames bridge. Then a nice double slip on the bridge (like the one in the Heathrow tunnel) and Hey Presto! we've arrived at the parcels platforms. With the connection to the GW retained, of course, for the E-W project. There! Solved!Ignore what is shown for Oxford. What is now the Jericho line will be made bi-directional and nothing will be required to cross the job.