Advisory Committee on Tunnel Air Quality

The Advisory Committee on Tunnel Air Quality (ACTAQ) is chaired by NSW Chief Scientist & Engineer Professor Mary O'Kane and consists of a range of experts and officers in fields related to road tunnels, air quality and human health.  This includes senior representatives from the Roads and Maritime Services and the NSW Ministry of Health (NSW Chief Health Officer), as well as an independent air quality expert, Dr Ian Longley from the National Institute of Water and Atmospheric Research (New Zealand).

The NSW Environmental Protection Authority, the Department of Planning and Environment and the Office of Environment and Heritage are observers to the Committee. Professor Peter Sturm, Institute for Internal Combustion Engines and Thermodynamics, Graz University of Technology, Austria is a technical advisor to the Committee.

The Advisory Committee undertakes work to better understand air quality in association with road tunnels in Sydney, including within cabins, within tunnels, and external to tunnels in the local surrounds.

The Advisory Committee is also asked to provide advice to the Department of Planning and Environment on air quality aspects of relevant Environmental Impact Statements, which is undertaken so as to avoid conflicts of interest. This advice is published on the Department of Planning and Environment’s Major Project Assessments portal.


Reports from the Committee

Title

Date

Optimisation of the application of GRAL in the Australian context

November 2017

Review of In-Cabin Carbon Dioxide Levels

September 2017

Comment on Australian Government Vehicle Emissions Discussion Paper

April 2016

In-tunnel air quality (nitrogen dioxide) policy

February 2016

NO2 Policy technical paper - A review and analysis of primary nitrogen dioxide emissions from road vehicles in Sydney

April 2015

NO2 Policy technical paper - Review of experimental studies of exposures to nitrogen dioxide

April 2015

NO2 Policy technical paper  - Road tunnels: reductions in nitrogen dioxide concentrations in-cabin using vehicle ventilation systems

February 2016

Technical Paper 1 - Trends in Motor Vehicles and their Emissions

September 2014

Technical Paper 2 - Air Quality Trends in Sydney

August 2014

Technical Paper 3 - Health Effects of Traffic-Related Air Pollution

August 2014

Technical Paper 4 - Road Tunnel Ventilation Systems

September 2014

Technical Paper 5 - Road Tunnel Stack Emissions

August 2014

Technical Paper 6 - Road Tunnel Portal Emissions

September 2014

Technical Paper 7 - Options for Reducing In-Service Vehicle Emissions

August 2014

Technical Paper 8 - Options for treating road tunnel emissions

September 2014

Technical Paper 9 - Evolution of Road Tunnels in Sydney

August 2014

Technical Paper 10 - Role of Regulators for Tunnel Projects

September 2014

Technical Paper 11 - Criteria for In-Tunnel and Ambient Air Quality

September 2014

Initial Report on Tunnel Air Quality

August 2014


Terms of Reference

To provide advice to the NSW Government based on national and international practice and experience with motorway tunnels that will:

  • Enable setting of performance based standards for emissions associated with road tunnels.
  • Recommend appropriate monitoring, compliance and reporting mechanisms to support public confidence in the operation of road tunnels.
  • Provide ongoing advice to Government on air quality issues arising from the assessment and operation of road tunnels.


Chair and Membership

  • NSW Chief Scientist & Engineer (Chair)
  • NSW Chief Health Officer
  • Chief Executive RMS
  • Dr Ian Longley, Senior Urban Air Quality Scientist, NIWA, New Zealand

The Chair of the committee retains the right to engage additional independent advice to support its considerations


Observers

  • Executive Director Priority Projects Assessments, Department of Planning & Environment
  • Director Reform and Compliance, EPA
  • Director Climate and Atmospheric Science, OEH


Technical Adviser

  • Professor Peter Sturm, Institute for Internal Combustion Engines and Thermodynamics, Graz University of Technology, Austria


Secretariat

  • Director Environment, Senior Environmental Specialist (Air Quality), RMS


Contacting the Panel

To provide feedback to the Advisory Committee, please send an email to tunnels.committee@chiefscientist.nsw.gov.au