To ask the Secretary of State for Transport, what comparative assessment he has made of the environmental footprint of motorcycles and single occupant cars on comparable commuting journeys; and if he will make a statement.
The Department for Transport publishes statistics regarding emissions from road vehicles per vehicle kilometre in urban conditions. This includes both petrol and diesel cars, and motorcycles. The latest statistics, from December 2018, are available in Table ENV0302 of Transport Statistics Great Britain. This is available at https://www.gov.uk/government/statistical-data-sets/energy-and-environment-data-tables-env#pollutants-emissions-and-noise-env03 .