Distance and time based road pricing trial in Dublin |
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Authors: | O'Mahony Margaret Geraghty Dermot Humphreys Ivor |
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Institution: | (1) School of Engineering, Trinity College Dublin, Dublin 2, Ireland;(2) School of Engineering, Trinity College Dublin, Dublin 2, Ireland |
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Abstract: | The objective of the work was to evaluate the potential user response to distance and time based road pricing of a sample
of individuals drawn randomly from a group of volunteers in Dublin. The road use pricing charge levels were selected to match
the marginal external costs of car transport i.e. those costs not currently paid by the car user. Such costs include marginal
external costs of congestion, air pollution and noise. The project formed part of the EU DGXVII EUROPRICE project where one
of the objectives was to evaluate the impact of road use pricing on private transport demand. Estimates of the marginal external
costs of car travel had been previously made for Dublin in an EU DGVII project entitled TRENEN II STRAN and the results were
used to select the road pricing charges in the trial. The distance travelled and travel time of a particular individual's
work trip were noted. Charges per unit distance and time were applied so that the individual would incur a total charge for
their average peak period work trip of 6.4 euro; the average marginal external cost of a peak period trip in Dublin, as estimated
by the TRENEN model. Although the sample of individuals was relatively small, the indications from the results are worthy
of note and further investigation on a larger sample. A significant reduction in the number of peak period trips was evident,
of the order of 22%, resulting from trip suppression and transfer to other modes.
This revised version was published online in June 2006 with corrections to the Cover Date. |
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Keywords: | distance and time based pricing external costs internalisation road pricing |
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