SIGNALLING & TELECOMS
“I’ve
witnessed four
companies that have collaboratively
worked
together to deliver the GNGE project so far,” Lindley said. “We have adopted the best practices from
each
organisation to deliver the best outcomes for the project. For me the Alliance method is the only way the project could be delivered.”
Revamped schedule
Network Rail’s obligation was to deliver the GNGE project in CP4, with the exception of work associated with providing a suitable capacity connection at the south end of the GNGE route. However, the slip of colliery spoil material at Hatfield, Stainforth, in February 2013 resulted in all freight traffic from Immingham ports being diverted via the GNGE line.
and the logistics sector. In order for us to minimise disruption to these stakeholders, we have really tried to understand what their needs are and how to take those into account when planning these commissionings and the sequencing of the road closures and diversions.
“I believe that we’ve worked hard to minimise disruption along the route, but if you look at what we’ve already done through phases one and three, we’ve had some really positive feedback from the end-users and stakeholders. Many believe they have a quieter railway and there is less disruption at the new level crossings, already.”
Lindley also outlined that the Alliance structure has been a significant learning curve with regards to the people, systems and processes involved. As part of the project, the partners centralised their delivery offices in Peterborough and had all its delivery functions running from there.
GNGE phases (see map above)
Phase two – Decoy North Junction to Gainsborough Trent Junction Phase one – Beckingham Junction to Pyewipe Junction Phase three – Branston & Washingborough to Sleaford South Junction Phase four – Sleaford North Junction to Gosberton Phase five – Spalding to Werrington Junction
As a result access to the line of route for the project team was severely restricted and, having
lost two signalling commissioning
exercises, the project was subject to a complete re-plan. The obligation is now November 2014 as the GRIP6 completion date.
Lindley, speaking to RTM at the end of August, said: “At present, we around North Carr, mainly doing the civils-related works in connection to this level crossing. So, it is more of the P-way renewals works, decking and highway works and associated civils signalling works. The schemes for the three level crossings in phase two aren’t due to be fully commissioned, signalling-wise, until late November.
“Also, we have three new U-deck underbridges to put in, we have large structural repairs and P-way renewals works to the large structure that passes over the ECML. We have longitudinal timber replacement works and three new level crossings that will be commissioned during this phase, along with many miles of earthworks and embankment stabilisation works. But so far the commissioning of phase two is going well and to programme, and it is due to be completed on 1 September.”
The bridge works were originally meant to be completed in October 2013, but they too were affected by the Hatfield Colliery landslip and had to be cancelled.
“Working
closely with the national route planning team, the other Alliance partners and TOCs and freight operating companies, we were able to agree a new access strategy, which formed part of the phase two blockade to deliver the work on these three structures in one blockade instead of three different ones,” said Lindley. He added that work is progressing well and, once complete, these three bridges will be the last three structures to be completed north of Lincoln.
“So, once these are completed it secures the GNGE works for achieving the final sign-off for tonnage capacity across the northern section of the route,” said Lindley.
However, there is still work to be done with phase five – between Spalding and Peterborough – commissioning left for October/November.
After completing phase four on time, the project team has started work on phase two of the scheme between Doncaster and Gainsborough.
During just 16 days engineers will replace and repair bridges and lower tracks, so modern, taller containers can travel along the line. However, work on the highways over three level crossings will mean they can be upgraded with modern technology later this year.
The bridges being replaced, which carry the railway across roads and waterways, are across Gainsborough Road, the Chesterfield Canal and Soss Lane. The level crossings receiving highways modernisation works during this period included Auckley, Beech Hill and North Carr.
“During this stage, we still have various smaller elements of track renewals to be completed and the main commissioning of phase five, which is 13 miles of new signalling system and 10 level crossings that have to be commissioned.
“There is an existing overbridge structure there, WEB/1, which is to be completed. And once we’ve got that done, we revert back to phase two to commission the last three level crossings and, hopefully, we’ll achieve our overall milestone of improvements to the line speed, tonnage and gauge,” Lindley concluded.
FOR MORE INFORMATION
W:
www.networkrail.co.uk/improvements/ Great-Northern-Great-Eastern/
rail technology magazine Aug/Sep 14 | 93
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