Working Parties

The Westminster Commission for Road Air Quality consists of five working parties chaired by the foremost experts in their fields.

Air Monitoring

Ralph has a passion for understanding cleaner air and ways of achieving it.
With a background in vehicle, industrial emission testing and air quality monitoring, Ralph understands the urgency of finding and eliminating high polluting diesel and petrol vehicles as a key to fast and low-cost Road Air Quality improvement.

Chair Air Health – Stephen Holgate CBE, FMedSci, MRC Clinical Professor, University of Southampton

Air Health

Stephen has a research focus on the mechanisms of asthma and allergy. He has an interest in the health effects of air pollution, serves as a UKRI Clean Air Champion and is Special Advisor for the Royal College of Physicians on Air Quality. Stephen chaired the government Committee on the Medical effects of Air Pollutants, the Expert Panel on Air Quality Standards and the Hazardous Substances Advisory Committee. He was a member of the Royal Commission on Environmental Pollution.

Chair, Energy, Fuels and Vehicles Jason Airey, MD CMS SupaTrak

Energy, Fuels & Vehicles

Jason aims to help customers reduce costs, be compliant and increase operational efficiency. As a connected fleet specialist, Jason is proud to lead a team of world-leading engineers which is designing and manufacturing vehicle telematics systems here in the UK.
Jason specialises in making a difference, and he has been instrumental in setting up the Optimised Waste & Logistics (OWL), and Westminster Commission for Road Air Quality initiatives. These innovation partnerships are helping shape best practice and increase road safety in the waste and transport and logistics sectors.

Chair Planning – Dr Louise Brooke-Smith OBE, FRICS, MRTPI


Louise has over 30-years’ experience across the property, land use and construction sectors within the UK and overseas. Previously a Partner of Arcadis LLP – UK Head of Development & Strategic Planning, she now holds numerous Non-Executive Directorships and advisory roles.

As the first female RICS Global President (2014-15), Louise led a series of groundbreaking property-related initiatives and championed diversity and inclusivity. She is a Freeman of the City of London and was National Construction Achiever (2015). Louise holds Honorary Doctorates from the Universities of Wolverhampton, Sheffield Hallam and Birmingham City. Louise was awarded the OBE in 2019 for services to the built environment.

Chair Education – Trewin Restorick, Founder and CEO of Hubbub UK


Hubbub is an award-winning charity which transforms the way environmental messages are communicated by bringing people and organisations together as a force for good.

Previously Trewin created Global Action Plan the UK’s leading environmental behaviour change charity. Trewin is a frequent media commentator on environmental issues and was trained by Al Gore as one of his climate change ambassadors. He has chaired Student Hubs and been a trustee for the New Economics Foundation.

Before starting the Global Action Plan, Trewin was Director of Fundraising at Friends of the Earth where he created PaperRound London’s leading community recycling business. Before Friends of the Earth, Trewin worked at Plymouth City Council and produced a youth TV programme for the BBC called Something Else.