Transport for London (TfL) has confirmed to the Ham&High it is working on the CS11 traffic modelling at the centre of its High Court defeat in September.

TfL’s failure to analyse the effect on traffic in Westminster were it to only complete construction on the Swiss Cottage gyratory portion of CS11 was cited by judge Sir Ross Cranston as he upheld Westminster Council’s objections to the plans at a judicial review and blocked work from beginning.

Building work on the Swiss Cottage part of CS11 had been due to start on July 30 until Westminster won an injunction blocking this until the judicial review could be heard.

The judge agreed it would be unlawful for TfL to begin building CS11 at Swiss Cottage when it did not have consent for the whole route and had not considered what would happen to traffic in Westminster if only the Swiss Cottage section was built.

Westminster Council welcomed the prospect of TfL completing the modelling.

Cllr Tim Mitchell, cabinet member for the environment and city management, said: “We want to do the best thing for residents and cyclists and remain willing to work together with TfL on a way forward.

“We have been asking for two years that they share the additional modelling they promised so we can get on with planning CS11.”

TfL is expected to formally announce its next move in the coming weeks.