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Transport Appraisal

Transport written question – answered on 21st May 2008.

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Photo of Norman Baker Norman Baker Shadow Secretary of State for Transport

To ask the Secretary of State for Transport for what reason the methodology used in the New Approach to Transport Appraisal treats a decision by an individual to leave his or her vehicle at home and use public transport as a disbenefit; and if she will take steps to change this attribution.

Photo of Rosie Winterton Rosie Winterton Minister of State (Regional Affairs) (Yorkshire and the Humber), Minister of State (Department for Transport)

holding answer 12 May 2008

The methodology recommended in the "New Approach To Appraisal" (NATA) does not treat a decision by an individual to leave his or her vehicle at home and use public transport as a disbenefit.

Instead, an assumption of appraisal is that a decision of this sort largely reflects the individual comparing the advantages and disadvantages of the form of transport they choose, in terms of journey time, journey costs and, in some circumstances, measures of other journey characteristics such as crowding, and judging there to be an overall 'benefit' through changing from one mode to another.

However, costs and benefits under the NATA methodology are not assessed only from the view of the transport user as there may be further impacts on transport providers, the Government, wider society or the environment. NATA seeks to ensure that all impacts are taken into account to give a complete picture.

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Rebecca Lush Blum
Posted on 23 May 2008 8:20 am (Report this annotation)

The DfT DOES count not using your car as a disbenefit in cost-benefit terms, as the loss of fuel tax revenue to the Treasury is counted on the balance sheet. The more people drive, the more fuel tax is raised, as this is counted. The more people ditch the car and take the train or bus, this is counted as a 'loss' to the Treasury as they receive less fuel duties. You can see how they work it out at 1.1.7 here: