§ Mr. Hammond
To ask the Secretary of State for Transport, Local Government and the Regions what assessment his Department makes of the impact of traffic management schemes in London on overall traffic flows. 381W
§ Mr. Jamieson
Assessment of the impact of traffic management schemes in London is the responsibility of Transport for London and the boroughs.
The Department makes forecasts of overall traffic flows, using the National Transport Model, and outputs from TfL's London Transportation Studies model. These are strategic models and do not represent every investment in the transport network in detail. In general, individual traffic management schemes are too small to be represented in either model and their impacts are modelled by the Department in aggregate.