Managing operational noise and vibration
We acknowledge that once operational, Inland Rail may generate an increase in noise and vibration impacts for some residents living and working in locations along the alignment.
May 5, 2023
Our railway design aims to minimise noise and vibration levels through project planning, including improved track formation and alignment.
Detailed modelling aims to predict where we may exceed trigger levels and list potential mitigation measures in addition to engineering and rail infrastructure improvements.
Operational rail noise and vibration is assessed in accordance with the New South Wales Environment Protection Authority’s Rail Infrastructure Noise Guideline. These guidelines provide the levels at which noise and vibration are deemed reasonable. Any exceedances above these guidelines would reasonably need to be mitigated.
Our operational noise and vibration modelling considers impacts from: trains passing, changing speeds, braking and idling – movement of train wagons and locomotives – operation of bells and alarms at level crossings and the use of train horns by train operators (as required by state legislation).
Modelling also assesses the potential noise impacts at certain points in time once the rail alignment is fully operational.
When the Narrabri to North Star Phase 1 project was approved by the Minister for Planning, the conditions of approval required the preparation of an Operational Noise and Vibration Review (ONVR) for the project.
The ONVR identified approximately 80 residents that require ‘at property’ operational noise mitigation measures.
ARTC Inland Rail recently appointed RCA Australia to help scope and determine reasonable and feasible treatment options for impacted properties.
Mitigation options include window glazing, fresh air ventilation systems, upgraded window and door seals and acoustic upgrades to boundary fencing in order to mitigate operational rail noise from Inland Rail.
For sites where the Newell Highway is located between the rail corridor and properties, the at-property treatment may also provide relief and improved quality of life from the highway traffic noise.
RCA will commence consultation in May by visiting each identified property, undertaking a consultation and scoping exercise to determine treatment options and understand installation requirements.
Subject to owner agreements, installation activities are expected to commence in the second half of this year.
IMAGE: Double-stacked freight train passing through a signalised level crossing in Western NSW
