Case Study
.jpeg)
The Client:
Salini Impregilo–NRW were awarded the design and construct contract for the Forrestfield Airport Link project for the Public Transport Authority of Western Australia.The Forrestfield Airport Link, now known as the Airport Line is a new rail line connecting the railway east of Bayswater Junction to High Wycombe with 8.5 kilometres of new tracks, 8km of it in tunnels. The use of underground tunnels reduced the project’s impact on the environment and the community during both construction and operational phases.
The Challenge / Objective:
Noise pollution is an ongoing issue within the Rail Industry due to recognised negative impacts on individuals, communities, and the environment. To address these problems, railway operators need to implement noise reduction measures such as noise barriers, improved track design, quieter train technology, and scheduling restrictions in order to comply with State regulations for Maximum noise levels. Within the tunnel, train generated noise exceeded allowable limits and a passive sound dampening solution was required.
The Solution:
Frontline sourced an innovative, cost effective solution from an international partner, sought independent verification from the CSIRO and was awarded the work to supply and install through a competitive tender process.RSS (Rail Silencing System) acoustic panels have been specially developed to reduce noise levels at train or tram stations and along railway lines, e.g., between and next to the rails in the case of slab track constructions and at the front of platforms. Frontline successfully project managed and installed the acoustic panels including:• International sourcing and supply (landed and supplied to site)• Transporting them within a tunnel environment • Load in and laying of acoustic panels
This project involved the installation of panels in tunnels, following a specific methodology. Pallets containing 60 panels each were placed at designated points in the tunnels, and then teams of workers, including supervisors and team leads, carried the panels by hand, applied glue, and layed them in place. Safety procedures, daily reporting, and pre-start and shift change activities were emphasised, with a focus on communication, cleanliness, and adherence to protocols.
The Result:
The panels were installed in the tunnels according to the designated methodology, resulting in a satisfactory outcome. By using the Nexcem acoustic panels it eliminated the requirement for the use of rail dampers saving the project additional costs.
All works were compliant with SINRW Safety and Quality standards, as well as meeting the Metronet/PTA standards and works were completed with 0 Lost Time Incidents.