Great Western Coffee Shop

Journey by Journey => Heathrow Express, Connect etc => Topic started by: didcotdean on May 11, 2018, 04:49:01 pm



Title: Consultation: Western Rail Link to Heathrow (11/5/2018 - 22/6/2018)
Post by: didcotdean on May 11, 2018, 04:49:01 pm
Public consultation on the route opened today.

(https://cdn.networkrail.co.uk/wp-content/uploads/2018/05/Western-Rail-Link-to-Heathrow-map.jpg)

"Consultation hub" here (https://consultations.networkrail.co.uk/communications/improving-rail-links-to-heathrow/).

Quote
The proposed rail link would:
Deliver a new, faster, frequent, more reliable direct train service to Heathrow with four trains per hour in each direction. All trains would call at Reading and Slough and alternate trains at Twyford and Maidenhead. Journey times could be as short as 26 minutes from Reading and 6 to7 minutes from Slough.
Significantly improve rail connectivity to Heathrow from the Thames Valley, South Coast, South West, South Wales and West Midlands
Provide an alternative form of transport for passengers and the airport workforce currently travelling by road
Ease congestion on roads, including the M4, M3 and M25 resulting in lower CO2 emissions equivalent to approximately 30 million road miles per year
Generate economic growth and new jobs across the Thames Valley and surrounding areas
Reduce passenger congestion at London Paddington


Title: Re: Consultation: Western Rail Link to Heathrow (11/5/2018 - 22/6/2018)
Post by: ellendune on May 11, 2018, 05:02:33 pm
Not having the Heathrow Express Depot at the former Langley Oil Terminal Site takes away one problem with this.  Could that have been part of the thinking in  integrating the Heathrow Express fleet with GWR?



Title: Re: Consultation: Western Rail Link to Heathrow (11/5/2018 - 22/6/2018)
Post by: paul7755 on May 11, 2018, 05:49:49 pm
Could that have been part of the thinking in  integrating the Heathrow Express fleet with GWR?
I think it can definitely be assumed it was, especially given how the cancellation of the Hex depot was mentioned in the original announcement about the transfer to 387 operation.

It was in the second paragraph of the bit Ollie posted here back in March:  http://www.firstgreatwestern.info/coffeeshop/index.php?topic=19559.msg234616#msg234616

Paul


Title: Re: Consultation: Western Rail Link to Heathrow (11/5/2018 - 22/6/2018)
Post by: Red Squirrel on May 11, 2018, 06:15:25 pm
Intrigued to know what an 'intersection bridge' is. Would it be the thing that in the olden days we used to refer to as a 'bridge'?


Title: Re: Consultation: Western Rail Link to Heathrow (11/5/2018 - 22/6/2018)
Post by: Electric train on May 11, 2018, 06:35:26 pm
Intrigued to know what an 'intersection bridge' is. Would it be the thing that in the olden days we used to refer to as a 'bridge'?

Probably the same style as Stockley Park


Title: Re: Consultation: Western Rail Link to Heathrow (11/5/2018 - 22/6/2018)
Post by: SandTEngineer on May 11, 2018, 07:06:19 pm
What in them 'olden days' we used to call a flyover..... :P


Title: Re: Consultation: Western Rail Link to Heathrow (11/5/2018 - 22/6/2018)
Post by: stuving on May 11, 2018, 07:14:32 pm
What in them 'olden days' we used to call a flyover..... :P

I think the term is older than flyover ... it is in the title, presumably the original one, of "View of the Intersection Bridge on the line of the St Helens & Runcorn Gap Railway, crossing the Liverpool and Manchester Railway near the foot of the Sutton inclined plane" (https://commons.wikimedia.org/wiki/File:View_of_the_Intersection_Bridge,_from_Bury%27s_Liverpool_and_Manchester_Railway,_1832_-_edgehill_2.jpg#/media/File:View_of_the_Intersection_Bridge,_from_Bury%27s_Liverpool_and_Manchester_Railway,_1832_-_edgehill.jpg) dated 1832.

So, not necessarily at a railway junction, but also not a road bridge (over- or under-). It would be confusing to say railway bridge except as over- or under- when seen from one line alone.


Title: Re: Consultation: Western Rail Link to Heathrow (11/5/2018 - 22/6/2018)
Post by: Red Squirrel on May 11, 2018, 08:24:52 pm
I am in awe, stuving, I really am! :)


Title: Re: Consultation: Western Rail Link to Heathrow (11/5/2018 - 22/6/2018)
Post by: ellendune on May 11, 2018, 08:39:27 pm
Intrigued to know what an 'intersection bridge' is. Would it be the thing that in the olden days we used to refer to as a 'bridge'?

Probably the same style as Stockley Park

What in them 'olden days' we used to call a flyover..... :P

Looking at the plan, given the proximity to the tunnel entrance, fact that the main line is on an embankment at this point and the proposed closure of Hollow Hill Lane, I would suggest it would be a dive under rather than a flyover!


Title: Re: Consultation: Western Rail Link to Heathrow (11/5/2018 - 22/6/2018)
Post by: SandTEngineer on May 11, 2018, 09:15:03 pm
Ahem.  Having now looked at the linked consultation document..... ::)

Quote
Detailed plans

We are proposing to build a new railway link that would leave the Great Western Main Line between Langley and Iver. It would then descend underneath the main railway line into a cutting before entering a 5km tunnel.


Title: Re: Consultation: Western Rail Link to Heathrow (11/5/2018 - 22/6/2018)
Post by: Electric train on May 12, 2018, 07:32:56 am
Ahem.  Having now looked at the linked consultation document..... ::)

Quote
Detailed plans

We are proposing to build a new railway link that would leave the Great Western Main Line between Langley and Iver. It would then descend underneath the main railway line into a cutting before entering a 5km tunnel.

Ah an inverted Stockley Park then  ;D  Southeast of London Bridge its called its BDU (Bermondsey Dive Under) or at East Ealing ADU (Acton Dive Under)  (note East Ealing is the posh name for West Acton  ;D )


Title: Re: Consultation: Western Rail Link to Heathrow (11/5/2018 - 22/6/2018)
Post by: paul7755 on May 12, 2018, 03:46:10 pm

Ah an inverted Stockley Park then  ;D  Southeast of London Bridge its called its BDU (Bermondsey Dive Under) or at East Ealing ADU (Acton Dive Under)  (note East Ealing is the posh name for West Acton  ;D )


To my eye the Bermondsey construction is a 'bit of both'.  It's certainly more dive under than flyover, but the Thameslink lines do rise above the local level (the Cannon St lines) as well.   Possibly about 30% flyover (for the Thameslnk route - Sussex fasts) and 70% dive under (for the Southeastern route - Kent fasts), IYSWIM...

I wonder if there is anywhere on the network where there is an even 50/50 grade separation between two routes?

Paul



Title: Re: Consultation: Western Rail Link to Heathrow (11/5/2018 - 22/6/2018)
Post by: grahame on June 19, 2018, 09:26:36 am
"Ping"ing topic ... consultation closes on Friday ... https://www.networkrail.co.uk/our-railway-upgrade-plan/key-projects/heathrow-rail-link/