h adb 10 may 07runway overlay stanstead

7/28/2019 H ADB 10 May 07runway Overlay Stanstead

1/17

Programme and Planning

David Hannay

BAA Project Leader


2/17

ScopeTime PeriodAccessWorking window


3/17

New surface 3048m x 60m

New Pit and Duct system

New RET New RAT


4/17

New runway AGL system for October 2006

Displaced Runway 05 Threshold for Summer 2007

300m

New Inset

Approach lightsAdditional TDZNew Elevated Approach

plus taxiway lead on/offs and RETILs

New

Threshold


5/17

Summer working

loss of Cat 3 (April to October) only

less weather delays (rain/low temperature/fog)better quality

2 seasons if necessary

Early start available for off-runway works (February & March)

Runway possessions to end November


6/17

Progress

PreparationSurfacingFinishes

bufferbuffer


7/17

Priority to this area

Phase 1 Monday to WednesdayInitial period

Phase 2 Saturday and SundayThroughout project

Phase 3 Monday to WednesdayFinal period

845m

845m

1352m

Safety area 1900m Active runway

Active runway Safety area


8/17

Phase 1 and 2 1st May to 28th June

Phase 3 and 2 1st July to 13th September

ch1000 ch1848 ch2530

ch2530 ch3200 ch4048

Surfacing 27 shifts(includes taxiways and risk)

Surfacing 27 shifts(includes taxiways and risk)

Surfacing continuesfor another 16 shifts

Surfacing16 shifts

NB 6 mid-week shifts July 1st to 15th spent elsewhereto allow prepwork to advance in Phase 3


9/17

Start of shift: 2330 Assemble at Holding Point

2359 Runway closed; gain access to works 0015 Shortened runway re-opened

Restraints on activities:

0230 Complete wet concrete activities 0400 Complete resin type activities 0430 Complete surfacing activity

End of shift:

0500 Start runway inspection 0545 Runway closed; lighting changes

0600 Full length runway opens


10/17

Prior to April (loss of Cat 3): New pit and duct system from sub-station to runway New pits and ducts along both sides of runway Primary cabling New approach lights for Displaced Threshold off runway

Following runway downgrade: Core out existing lights (centre line, TDZ and taxiway) Install secondary cabling and support plug for new AGL Install duct in concrete trench to feed and support light bars

(TDZ, Inset Approach and Displaced Threshold lights)


11/17


12/17

AGL Light Bars(TDZ,Threshold, Approach, SALs)


13/17

50mm of existing surface removedand replaced by 50mm new material60m x 45m runway each shift400m x 7.5m shoulder every 2nd week

existing edge lights left insurface grooved following week


14/17

Once surfacing activities complete, new AGL potsinstalled on top of concrete plugs.

Pots aligned and levelled using jig sighted to targetFittings connected to secondary cable stored in plug

Work in phase 1 continued after phase change,but atweekends only

Emphasis on returning Cat3for existing runway:

New centreline lightsNew TDZsExisting Threshold lights(with new fittings)

Existing Approach lights1 set of lead on/off lightsfor each runway direction


15/17

transformers installed in pits

mounted on retractable cageswork ongoing in sub-stationsinstalling regulatorsswitch from old to new edge lightscircuits completed and testedMALMS testing of lightsFlight checks

CAT 3 returned on 30th Octoberwork continued to 30th Novemberon taxiway lead ons, RETILs etc


16/17

Works completedby 30th November

Remaining worksubstantiallycompleteby Dec 21st


17/17

h adb 10 may 07runway overlay stanstead

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