Engineering and professional services consultancy, WSP, has been appointed by Transport for London to assess the traffic impact of London’s Ultra Low Emission Zone extension, proposed for extension in October 2021.

Having gone live in April this year, the London ULEZ will expand up to the North / South Circular roads in October 2021.

WSP has been appointed to carry out a traffic modelling based assessment to identify the junctions and corridors most affected by the proposed ULEZ boundary as well as to quantify the junction impacts and rank the scale of those impacts.

Following this, if areas of concern on the road network are highlighted by the strategic study WSP will develop micro-simulation modelling, that will perform highly detailed analysis of highway traffic activity, to assist TfL when it comes to the design of mitigation proposals.

Future demand will also be developed for the detailed models by applying traffic flow changes from the ULEZ models to existing demand.

“As we continue to drive towards cleaner air for London, we are thrilled by the opportunity to contribute towards the planning and implementation of the ULEZ extension”, says Christine Elphicke, Project Manager at WSP. “Our analysis will focus on c.120 junctions between the North and South Circular roads that with our detailed modelling techniques will lead to the success of the extension scheme and improve the air quality in central London.”



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Notes to editors

About WSP

WSP is one of the world's leading engineering professional services consulting firms. We are dedicated to our local communities and propelled by international brainpower. We are technical experts and strategic advisors including engineers, technicians, scientists, planners, surveyors and environmental specialists, as well as other design, program and construction management professionals. We design lasting solutions in the Property & Buildings, Transportation & Infrastructure, Environment, Industry, Resources (including Mining and Oil & Gas) and Power & Energy sectors as well as project delivery and strategic consulting services.

With more than 8200 talented people in the UK and approximately 48,000 globally, we engineer projects that will help societies grow for lifetimes to come. WSP has been involved in many high-profile UK projects including the re-development of London Bridge Station and Quarter, Alder Hey Children’s Hospital, HS2, Transport for the North Strategic Development Corridor studies, One Blackfriars and the Shard.