Department for the Environment, Transport and the Regions (DETR) (2001) ‘The Potential for Further changes to the Personal Taxation Regime to Encourage Modal Shift’, Final Report by The Open University, WS Atkins and Napier University, http://www.dft.gov.uk/itwp/modalshift/index.htm (27/11/02).
Department for Transport (DFT) (2002) ‘Treatment of Taxation in the Cost-Benefit Appraisal of Transport Appraisal’. http://www.roads.dft.gov.uk/roadnetwork/heta/resresult/treatment/09.htm (27/11/02).
Litman T (2002), Online TDM Encyclopaedia, Victoria Transport Policy Institute, http://www.vtpi.org/tdm/tdm17.htm (11/12/02).
Milne, Niskanen and Verhoef (2000), Operationalisation of Marginal Cost
Pricing within Urban Transport, AFFORD Deliverable 1, Government Institute
for Economic Research, Helsinki