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London Overground

LocationHolywell Curve, Shoreditch

EnvironmentRailway / Overground

London Overground were suffering noise caused by a curved raised viaduct track bed. Due to the curve in the track the train had to slow down which caused a squealing sound as the carriages navigated the curve.

This project was also a test for London Overground and other transport/service providers in and around London to see if a Sub Contractor could act as a Main Contractor.

Gramm welcomed the challenge! and due to working as a main contractor on previous projects had the ability to deliver the project on time and in budget. London Overground were extremely pleased with the efforts and performance of our work and sent out a letter congratulating us on our high degree of professionalism and manner in which we completed the works – Please see below...

Specialist Environmental Noise Barriers

London Overgound contacted Gramm Barrier Systems looking for a completed package that took them from the initial design all the way through to the completed installation. The brief called for the design and installation of a lightweight maintenance free Acoustic Barrier + an absorptive lining along the cess and centre concrete up stands. They also instructed us to produce design calculations, Drawings and Certificates for our Noise Barrier System.

We were chosen by London Overground as we could offer the exact system they were looking for. Gramms Recycled plastic barrier was lightweight, extremely hard wearing with a 40 year design life which is also maintenance free. We also lined the concrete up stands with an Absorptive tile which was extremely effective as it could be installed directly next to the wheels which were causing the noise.

Our main challenge for this project was the access and working in a rail environment. All the materials had to be transported up the viaduct via the stations stairs. Due to the installation being on a live Railway all works had to be carried out during night time engineering hours and weekend possessions.

"I would like to thank you and your organisation for the successful delivery of the supply and installation of the new noise Barriers at Holywell Curve, Shoreditch on behalf of London Overground.

This has been a very sensitive and high profile project, which has been delivered both within time and budget and with a high degree of professionalism.

I am very pleased with the final outcome of the project and the manner in which you have completed these works."

Yours sincerely,

Hugh Lawson
Head of Programme Delivery

Products Used

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