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23-May-15 1Tom Ingrey – WITI Scheme PM

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Why Week 22 - 36hr possession on the

Airports?

► This critical OLE stage was identified by the Team in long term planning meetings a regular handback risk on midweek or shorter weekend possessions, a critical part of Christmas 14 Stage G commissioning.

► Constrained worksite access to deliver approx 450m of wires and 5 portal booms (see next slide). Plan was developed with Hex and a solution was agreed to utilise a unique 36 hour possession with an extended isolation to Heathrow, which affects the inter terminal services.

► Further opportunities developed within team to advance signalling scope for Christmas 14 Stage G commissioning in HEX tunnel

► Week 22 Scope:-Carillion: Erect 5 new portal booms (using 2 road cranes and 3 rail mounted) -Carillion: Install new SPS and transfer wires on the Up and Down Airports on to the new structures-Carillion: Install wire run 46 from just outside the Heathrow tunnel onto the new Up Airport Relief-Carillion: Remove existing structures -SSL: Signal head SN324 alterations and track circuit changes in HEX tunnel-Amey: 650v power changeovers-Lowery/Starc: 7no cable pulls

223-May-15

/23-May-15

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Airport Lines to Heathrow

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Possession Achievements

► Carillion: 5no portal booms landed

► Carillion: Wire Run 46 installed

► Carillion: All transfers, registration and droppering complete

► Amey: 650v power changeover complete

► SSL: Track circuit and signalling advance works complete

► Lowery/Starc: 7no cable pulls complete

► SSL: SN324 work lost work due to gauge clearance issues (existing derogation

would be exceeded – engineering solution required)

► New Type 2 reporting successfully trialled for coming weekends and Xmas

423-May-15

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Possession Development and Issues

Management

The OLE section adjacent to worksite required to remain live to feed the Heathrow inter

terminal service. Staggered DEPs created risk to staff and threat to HEX’s customer

aspiration.

Agreed through joint development to block the ITT service for 12hours to allow tie in to

section insulator.

To allow this to work practically, HEX trains had to be stabled at Terminal 4/5 with pans

down. This required negotiation with Route Operations to provide amended work

instructions.

Identified that OLE foundations clashed with existing retaining wall. Successful mitigation

strategy agreed with Carillion Civils to remove using a temporary works design.

523-May-15

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Planning – keep challenging!

Material allocation checks before possession identified error with a section of boom not fitting with the

design. Designer was engaged and a solution was developed that the manufacturer was able to deliver

prior to works commencing.

Signalling team identified cable pulls and changeovers associated with SSL scope and other interfacing

works. Although late addition to the IWP, work successfully planned prior to Week 22 by Starc/Lowery

supervisors and integrated to work safely alongside portal boom lifts with Carillion. QSRAs updated

through Ravi Anantharamu who supported the late introductions.

Briefings with Railway Operations team identified Hex specific issues such as that only the maintainer is

allowed to take isolations in the tunnel and agreed additional for signal black out period.

Development of integrated team rosters/directions through NR Team Organisers and presentations by

Carillion/HEX to brief out works to all teams.

Team led internal peer reviews outside of DWWP process challenge plans. Ideas developed included

food management in possession for staff, laminating OLE cross sections on site and working with HEX

to control parking in HEX compound next to tunnel portal.

623-May-15

/23-May-15 7

Stockley Week 22 HEX Possession

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23-May-15 8

• Liaison with maintainer to agree methodology of travelling under live

OLE

• Carillion safety team challenged to provide extra protection and go the

extra mile

• Additional briefings for all staff

• Additional notifications at isolation points (see picture in background)

• Appointed person to manage all access/egress

• Additional signage on site

Worksite Safety Management Excellence

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Lessons Learnt – The Successes

► Long term planning meetings to assess constructability of design are critical

► Develop issues requiring access in collaboration with the train operator, NR central team planners and contractors together face to face

► Don’t panic! Several issues came up, but on reflection solutions to deliver the work were always available

► Keep asking safety questions – good practice from Carillion in segregating the worksite where RRVs had to travel under live

► Signalling team made right call in possession to not proceed with SN324 works

923-May-15

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Lessons Learnt – to improve for next time

► Validate designs 100% with delivery and procurement teams (Carillion OLE booms & SSL signal head) 2-3 weeks ahead of possession

► Order materials to arrive in advance to allow for any errors

► Lock down signalling scope earlier, through single discipline readiness reviews

► Ensure issues like wall removal are correctly aligned with normal critical procedures, such as CRT management; issue occurred on the Airports and team subsequently re-briefed by Sean Murray, IP Principal Track Engineer

► Ensure Bridgeway are involved in the long-term planning meetings

► Ensure reporting quants are aligned with the planned scope of works, including late changes.

► Validate all HEX processes in a timely manner, to ensure compliance at an earlier stage.

1023-May-15

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Coming soon to a possession near you at

Stockley…..

► Following achieving this year’s earlier key milestones of slewing the Down Relief, installing SN303 and pushing the West Flyover ‘Richard Sams’ bridge, Stockley now moves into delivery overdrive to achieve Stage G and advance works for next year.

What’s next?

► Civils completion of the Northern Viaduct, East Flyover and Up Airport Relief Ramp

► Track infrastructure installation on the new Up Airport Relief Flyover Route – Carillion, SSL and Amey

► Week 26: Installation of 3no 7 track portal booms for week 31 wire run delivery

► Week 28: Installation of 8200A

► Week 29: Installation of 8200B

► Week 31: Installation of 2no wire runs on mains to electrify 8212 crossover

► Week 33: Installation of 8204

► Week 36: Installation of 8212

► Lots more going on behind the scenes to upgrade E&P and SCADA

► Christmas 2014 possession – installing 8216 on Airports, recovering existing Up Airport and commissioning new Up Airport Relief line

► 2015 advance works: piling for Eastern Flyover central section & acceleration to install 8210s

1123-May-15

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Up Relief

Down Relief

Up Main

Down Main

Dawley Road

Bridge

Station Road

Bridge

Hayes & HarlingtonStation

Up Relief

Down Relief

Up Main

Down Main

Down Airport

Up A

irport

2014 Stage G - UAR works- Stockley

Hanson

Terminal

Stockley Road

Bridge (A408)

Up Airport

Old Stockley

Footbridge

8199a/b

8218a/b

Dawley Up Goods8209a/b

Dow

n A

irport

8200a/b

Up Airport

Relief 8204

8212

Up Airport Airport Junction

11m 14ch

Stockley Bridge Junction

12m 09ch

12 MP

11 MP

From LondonTo West Drayton

• 8200A&B points (week 28& 9)

• Stage 26 OLE (Easter 14-Xmas)

• 8212 (week 36)

• Remove Up Airport (Xmas)

• Stage 34 OLE (Sept-Dec 14)

• 8204 (week 33)

• 8216 (Xmas)

• Stage 14 OLE (Week 22 – Xmas)

• Western embankment build up & UTX

• Airport Portal E&P and PSP Compound

• UTX

• Swallowfield UTX (Sept-Xmas 14)

• E&P compound (June –Dec 14)

• Keith Road UTX

• E&P compound

FLYOVER

• Installation of track on elevated sections

• Stage 30 OLE (Sept-Dec 2014)

• Structural Expansion Switch (Sept-Dec 2014)

•8211 (OOU)

• Up Relief Rerail (CEN56 to CEN60) – Weeks 6/7

• Temp slew of HEX feeder (Week 4)