§ Mr. Clifton-Brown
To ask the Secretary of State for Transport, Local Government and the Regions what predicted traffic rates over the next(a) five, (b) 10 and (c) 20 years the multi-modal studies are using. 
§ Mr. Jamieson
The multi-modal studies do not use a pre-determined rate of traffic growth. Each study makes its own estimate of how traffic will grow in its study area over the study period. In each case, account is taken of study-specific factors such as changes in the numbers and location of households and workers, the level of current and future congestion, the availability of alternative modes of transport and the implementation of local demand restraint measures.