Question to the Department for Transport:

To ask the Secretary of State for Transport, what assessment he has made of the effect of cycle lanes on traffic in London.

No assessments have been made. The management of the Transport for London Road Network (or London’s “red routes”), including decisions on how much road space to allocate to cycle lanes and the impacts of that on other traffic, is a matter for the Mayor of London. The management of all other London roads is a matter for individual London boroughs.