 By 2010 the Department for Transport had an 'Integrated Transport Economics and Appraisal' unit which included in its remit to "develop a strategic National Transport Model for use by the Department in the assessment of a range of transport policy options.The Model uses data on how people travel according to their circumstances and where they live.It takes into account the choices available and the use people make of the different modes of transport - car, rail, bus, walk and cycle."