The Challenge:

The Anglia region has a number of level crossings which still use legacy “Penguin” and Godwin Warren barrier machines.

These machines have not been manufactured for a long time and spares are no longer available. This presents a significant risk to Network Rail and the performance of their operations when faults occur of this equipment.

Kier won the contract to replace the legacy barrier machines and replace them with modern equivalent electro-hydraulic SPX barrier machines and booms.  A total of eight pedestals needed to be replaced across four sites.

The Solution:

The automatic half barriers crossings consists of bi-directional controls (AHB-X) and are located between Whittlesea and March on the Ely North Junction to Peterborough line. Three Horse Shoes No.1, No.2 and No.3 are on the same road and Burnt House Drove is located on Burnt House Road.

Existing LED road traffic lights and audible warning devices were re-used where appropriate and halogen lamp road traffic lights were replaced with LED versions. New posts were also provided for all road traffic lights.  

During the survey works, it was found that the PWAY (permenant way) at one of the locations was in a very poor condition and it required urgent rectification. Kier were instructed to undertake a full PWAY renewal with minor PWAY alignment works at a second location. The works had to be designed, installed and commissioned by Christmas 2018 which was a significant challenge in the time available.

The Impact:

Kier appointed Sonic Rail Services to undertake the PWAY renewal working alongside Kier’s inhouse civils and signalling designers.

Through close collaboration with Network Rail, design delivery timescales were shortened to enable the renewal to go ahead.

The PWAY and signalling team rose to the challenge and the project was successfully commissioned during a 61 hour period which fell over Christmas 2018.

The existing crossing decks for Three Horse Shoes No.1 and Three Horse Shoes No.2 were renewed with STRAIL style rubber crossing deck that covers the full crossing. New cill beams, tarmacking and road lining were also undertaken.

" This project would never have been commissioned if it wasn’t for the close co-operation of all parties across the board. The good working relationships, especially with the Network Rail engineers enable this project to be delivered safely and on time. "
Paul Cornelius Contracts Manager Kier

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