Train GraphicClick on the map to explore geographics
 
I need help
FAQ
Emergency
About .
Travel & transport from BBC stories as at 14:15 29 Mar 2024
- Delays at Dover as millions begin Easter getaway
- Attempted murder charge after man stabbed on train
- KFC Nigeria sorry after disabled diner refused service
Read about the forum [here].
Register [here] - it's free.
What do I gain from registering? [here]
 02/06/24 - Summer Timetable starts
17/08/24 - Bus to Imber
27/09/25 - 200 years of passenger trains

On this day
29th Mar (1913)
Foundation of National Union or Railwaymen (*)

Train RunningCancelled
12:30 London Paddington to Weston-Super-Mare
13:15 London Paddington to Cardiff Central
14:12 Newbury to Bedwyn
14:19 Westbury to Swindon
14:57 Bedwyn to Newbury
15:14 Swindon to Westbury
15:22 Newbury to Bedwyn
15:28 Weston-Super-Mare to London Paddington
15:50 Bedwyn to Newbury
15:54 Cardiff Central to London Paddington
16:15 Newbury to Bedwyn
16:23 Westbury to Swindon
16:55 Bedwyn to Newbury
17:36 Swindon to Westbury
18:37 Westbury to Swindon
20:13 Swindon to Westbury
21:16 Westbury to Swindon
22:30 Swindon to Westbury
Short Run
10:55 Paignton to London Paddington
12:35 London Paddington to Exeter St Davids
13:10 Gloucester to Weymouth
13:42 Exeter St Davids to London Paddington
13:46 Bristol Temple Meads to Warminster
13:55 Paignton to London Paddington
14:36 London Paddington to Paignton
15:42 Exeter St Davids to London Paddington
16:35 London Paddington to Plymouth
16:50 Plymouth to London Paddington
17:03 London Paddington to Penzance
17:36 London Paddington to Plymouth
18:03 London Paddington to Penzance
18:36 London Paddington to Plymouth
19:04 Paignton to London Paddington
20:03 London Paddington to Plymouth
21:04 London Paddington to Plymouth
Delayed
09:10 Penzance to London Paddington
10:04 London Paddington to Penzance
10:20 Penzance to London Paddington
11:03 London Paddington to Plymouth
12:03 London Paddington to Penzance
12:15 Penzance to London Paddington
13:03 London Paddington to Plymouth
13:15 Plymouth to London Paddington
13:50 London Paddington to Great Malvern
14:03 London Paddington to Penzance
14:15 Penzance to London Paddington
15:03 London Paddington to Penzance
15:15 Plymouth to London Paddington
16:03 London Paddington to Penzance
16:15 Penzance to London Paddington
19:04 London Paddington to Penzance
etc
PollsOpen and recent polls
Closed 2024-03-25 Easter Escape - to where?
Abbreviation pageAcronymns and abbreviations
Stn ComparatorStation Comparator
Rail newsNews Now - live rail news feed
Site Style 1 2 3 4
Next departures • Bristol Temple MeadsBath SpaChippenhamSwindonDidcot ParkwayReadingLondon PaddingtonMelksham
Exeter St DavidsTauntonWestburyTrowbridgeBristol ParkwayCardiff CentralOxfordCheltenham SpaBirmingham New Street
March 29, 2024, 14:23:13 *
Welcome, Guest. Please login or register.

Login with username, password and session length
Forgotten your username or password? - get a reminder
Most recently liked subjects
[153] 2024 - Service update and amendment log, Swindon <-> Westbury...
[97] Infrastructure problems in Thames Valley causing disruption el...
[53] Travel for free on the m2 metrobus - Bristol - 4,5,6 April 202...
[41] would you like your own LIVE train station departure board?
[38] West Wiltshire Bus Changes April 2024
[37] Reversing Beeching - bring heritage and freight lines into the...
 
News: A forum for passengers ... with input from rail professionals welcomed too
 
   Home   Help Search Calendar Login Register  
Pages: 1 ... 26 27 [28] 29 30 ... 63
  Print  
Author Topic: Class 387 coming to Thames Valley - ongoing discussion  (Read 460261 times)
stuving
Transport Scholar
Hero Member
******
Posts: 7156


View Profile
« Reply #405 on: September 16, 2016, 12:17:21 »

There is perhaps a little more leeway than I said in the timing. The timetable now gives 10 minutes Greenford-West Ealing, and 12 minutes the other way includes the overall allowance at the end of a run from Paddington. Oddly, in pre-diesel 1949 it was given as only 9 minutes - and you know what that was done by! Of course the odd minute may be due to different assumptions about what a timetable means.

What will a connection mean in the long run? With 4 Crossrail trains promised per hour, it will come down to the spacing each away and between directions. If it's regular, the 20 minute options looks unhelpful. But really, as it's not single track, it ought to be possible to come up with something reasonably flexible to cope with disruptions to Crossrail (but of course there won't be any of those in the bright new tomorrow, will there?).
Logged
IndustryInsider
Data Manager
Hero Member
******
Posts: 10096


View Profile
« Reply #406 on: September 16, 2016, 12:36:09 »

There is perhaps a little more leeway than I said in the timing. The timetable now gives 10 minutes Greenford-West Ealing, and 12 minutes the other way includes the overall allowance at the end of a run from Paddington. Oddly, in pre-diesel 1949 it was given as only 9 minutes - and you know what that was done by! Of course the odd minute may be due to different assumptions about what a timetable means.

What will a connection mean in the long run? With 4 Crossrail trains promised per hour, it will come down to the spacing each away and between directions. If it's regular, the 20 minute options looks unhelpful. But really, as it's not single track, it ought to be possible to come up with something reasonably flexible to cope with disruptions to Crossrail (but of course there won't be any of those in the bright new tomorrow, will there?).

Yes, though 11 minutes is allowed for the Greenford to West Ealing trains as the entry speed into the bay platform is slightly slower than into the though platform, so you'd be looking at around 23 minutes actual movement per round trip.  That gives four minutes at one end and three at the other to provide a clockface 15-minute interval service, which is just about OK in short peak time bursts, but probably not sustainable for the whole day.  A 20-minute frequency gives a much more manageable 8 minutes turnround at both ends.  A 30-minute frequency and you've got a wasteful 18 minute wait at each end.

Connection optimisation does indeed depend on how clockface the Crossrail timetable turns out to be.
Logged

To view my GWML (Great Western Main Line) Electrification cab video 'before and after' video comparison, as well as other videos of the new layout at Reading and 'before and after' comparisons of the Cotswold Line Redoubling scheme, see: http://www.dailymotion.com/user/IndustryInsider/
grahame
Administrator
Hero Member
*****
Posts: 40692



View Profile WWW Email
« Reply #407 on: September 16, 2016, 12:46:43 »

Connection optimisation does indeed depend on how clockface the Crossrail timetable turns out to be.

Presumably it also depends on the offset between eastbound and westbound calls at West Ealing?    If the westbound call is at :00, :15, :30 and :45 and the eastbound at :05, :20, :35 and :50, the Greenford can arrive at :01 and leave at :04 ... but if they both call at  eastbound were to call at :12, :27, :42 and :57 you would have a different situation.

Is there significant traffic connecting from the Slough direction to Greenford?
Logged

Coffee Shop Admin, Acting Chair of Melksham Rail User Group, Option 24/7 Melksham Rep
IndustryInsider
Data Manager
Hero Member
******
Posts: 10096


View Profile
« Reply #408 on: September 16, 2016, 18:30:21 »

Virtually non-existent connectional demand from the west, Graham.
Logged

To view my GWML (Great Western Main Line) Electrification cab video 'before and after' video comparison, as well as other videos of the new layout at Reading and 'before and after' comparisons of the Cotswold Line Redoubling scheme, see: http://www.dailymotion.com/user/IndustryInsider/
Adelante_CCT
Transport Scholar
Hero Member
******
Posts: 1314



View Profile
« Reply #409 on: September 20, 2016, 19:44:24 »

Now that we are a couple of weeks in to the introduction of the additional Hayes services, I'm just wondering how the existing services have been affected with regards to passenger numbers,,, do we have any regular commuters on the 17:15/18:45/19:12 stoppers out of Paddington? If so have those services been slightly less of a squeeze recently, or have the extra services had minimal impact?
Logged
rower40
Transport Scholar
Sr. Member
******
Posts: 292

Turning signalling into a video game since 1988.


View Profile
« Reply #410 on: September 20, 2016, 20:01:34 »

Looks as if the Class 387 drags to Reading Depot using Class 57s have been pencilled in to be used when required as follows:
TWThO from December 13th onwards
0R87 09:09 OOC (Old Oak Common (depot)) to West Ealing Loop (Class 57)
5R87 10:00 West Ealing Loop to Reading TD (Class 57/387)
5G87 12:21 Reading TD to West Ealing Loop (Class 57/387)
0G87 14:32 West Ealing Loop to OOC (Class 57)
Did this level of preparation occur (i.e. timetabling moves to get the new stock to and from its depot) when a similar step-change in motive power last occurred on the Great Western?  I'm thinking of the Steam to Diesel transition in the 1960's.

There's a minor bug in ARS (Automatic Route Setting) at West Ealing.  It routes trains from the Greenford branch onto the Up Relief, even those timetabled to terminate in the bay.  Oops...(mea culpa!)  It'll be fixed at Christmas.
Logged
Electric train
Transport Scholar
Hero Member
******
Posts: 4356


The future is 25000 Volts AC 750V DC has its place


View Profile
« Reply #411 on: September 25, 2016, 21:28:43 »

Did this level of preparation occur (i.e. timetabling moves to get the new stock to and from its depot) when a similar step-change in motive power last occurred on the Great Western?  I'm thinking of the Steam to Diesel transition in the 1960's.

Big difference with this traction change, all the pervious traction changes on the Western the traction units have carried there energy source with them, this time the energy source is external to the traction unit and only the first 10 miles from OOC (Old Oak Common (depot)) is available after that its not quite ready  Grin
Logged

Starship just experienced what we call a rapid unscheduled disassembly, or a RUD, during ascent,”
simonw
Hero Member
*****
Posts: 589


View Profile Email
« Reply #412 on: September 26, 2016, 09:10:44 »

Slightly off topic, but when will the diesel trains displaced by the Class 387s be released to Bristol and West?

There are so many routes journeys that could do with moving from 2/3 carriages to 4/5 carriages. Compounded growth over 20 years does cause serious capacity issues that need addressing.
Logged
paul7575
Transport Scholar
Hero Member
******
Posts: 5316


View Profile
« Reply #413 on: September 26, 2016, 11:06:50 »

Slightly off topic, but when will the diesel trains displaced by the Class 387s be released to Bristol and West?


Not for a long time as far as I can see.  There is only one 2 car unit released from the Greenford branch, because the Hayes services are additional beyond West Ealing they don't release any other stock.    I doubt any more DMUs (Diesel Multiple Unit) will become available until wires are complete to Reading, at which point you'd expect the two per hour Paddington - Reading stoppers would become EMUs (Electric Multiple Unit).   Mid to late 2017 maybe?

Paul
« Last Edit: September 26, 2016, 12:26:28 by paul7755 » Logged
Adelante_CCT
Transport Scholar
Hero Member
******
Posts: 1314



View Profile
« Reply #414 on: September 26, 2016, 12:44:26 »

Don't forget that even when some turbos are released from current duties, 3, possibly 4 units will need to be retained in order to cover for the enhanced Gatwick services.... Also if the Basingstoke 150s are not kept then another 2 turbos for that route as well.
Logged
paul7575
Transport Scholar
Hero Member
******
Posts: 5316


View Profile
« Reply #415 on: September 26, 2016, 16:25:08 »

I hadn't realised how soon the enhanced Reading to Gatwick services, and the additional 3rd train per hour Reading to Redhill are supposed to start; the direct award brief reckoned May 2017, as does the SLC2 definition,  so they could easily end up taking the very first 'spare' Turbos anyway...

Paul
Logged
Adelante_CCT
Transport Scholar
Hero Member
******
Posts: 1314



View Profile
« Reply #416 on: October 09, 2016, 17:24:56 »

Quote
Quote from: IndustryInsider:
Connection optimisation does indeed depend on how clockface the Crossrail timetable turns out to be.
Quote
Quote from: grahame:
Presumably it also depends on the offset between eastbound and westbound calls at West Ealing?

Going back to the Greenford discussion, I see the shuttle times from January are slightly altered between morning and afternoon, so that 3-4 minute connections 'should' occur heading into London before midday and 3-4 minute connections heading from London after midday. If travelling to/from Greenford in the directions opposite to the am/pm flows then a connection to/from the Heathrow Connect at West Ealing will be required with roughly 14 minute waits in both directions.

As expected, the first train to Greenford and the last from Greenford will run to/from Paddington.
Logged
paul7575
Transport Scholar
Hero Member
******
Posts: 5316


View Profile
« Reply #417 on: October 09, 2016, 18:14:32 »

There's also a track access application online now, that describes exactly what will happen both in January when the Hayes service goes all day, and from next May it explains the changes to various peak extra services to/from Maidenhead and Slough that replace the various  existing through DMUs (Diesel Multiple Unit) from Bourne End:

http://www.networkrail.co.uk/browse%20documents/track%20access/2%20completed%20consultations/2016/2016-08-30-first%20greater%20western%20limited-3rd%20sa-section%2022-%20closes%2027th%20september%202016/form%20p%20dec%2016%203rd%20sa%20final%20for%20external%20consultation.pdf

Paul
Logged
Gordon the Blue Engine
Transport Scholar
Hero Member
******
Posts: 752


View Profile
« Reply #418 on: October 12, 2016, 12:19:59 »

“To-days Railways” is reporting that Class 387’s are subject to severe route restrictions between Paddington and Hayes, prohibiting them from a number of platforms.  A senior manager is quoted as saying the situation is a “nightmare”.

What’s the problem? Are they out of gauge? Are the platforms or the trains at fault?

Logged
paul7575
Transport Scholar
Hero Member
******
Posts: 5316


View Profile
« Reply #419 on: October 12, 2016, 12:46:54 »

387137 delivered last night, reported elsewhere.

Paul
Logged
Do you have something you would like to add to this thread, or would you like to raise a new question at the Coffee Shop? Please [register] (it is free) if you have not done so before, or login (at the top of this page) if you already have an account - we would love to read what you have to say!

You can find out more about how this forum works [here] - that will link you to a copy of the forum agreement that you can read before you join, and tell you very much more about how we operate. We are an independent forum, provided and run by customers of Great Western Railway, for customers of Great Western Railway and we welcome railway professionals as members too, in either a personal or official capacity. Views expressed in posts are not necessarily the views of the operators of the forum.

As well as posting messages onto existing threads, and starting new subjects, members can communicate with each other through personal messages if they wish. And once members have made a certain number of posts, they will automatically be admitted to the "frequent posters club", where subjects not-for-public-domain are discussed; anything from the occasional rant to meetups we may be having ...

 
Pages: 1 ... 26 27 [28] 29 30 ... 63
  Print  
 
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1.2 | SMF © 2006-2007, Simple Machines LLC Valid XHTML 1.0! Valid CSS!
This forum is provided by customers of Great Western Railway (formerly First Great Western), and the views expressed are those of the individual posters concerned. Visit www.gwr.com for the official Great Western Railway website. Please contact the administrators of this site if you feel that the content provided by one of our posters contravenes our posting rules (email link to report). Forum hosted by Well House Consultants

Jump to top of pageJump to Forum Home Page