Transport policy prioritisation for Dublin |
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Authors: | Gibbons E O'Mahony M |
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Institution: | (1) Civic Offices, Dublin Corporation, Dublin 8, Ireland;(2) Department of Civil, Structural & Environmental Engineering, Trinity College Dublin, Dublin 2, Ireland |
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Abstract: | Internalisation of the external costs of transport is currently the subject of much debate. Estimation of costs such as those
of pollution and congestion is a primary element in any strategy involving policies for use in the internalisation of these
costs. The objective of the TRENEN II STRAN project, funded by the EU, was to develop a methodology for estimation of the
marginal external costs of transport. The model developed during the project was used in a series of case studies. One of
the case studies, that conducted for Dublin, is reported in this paper. A brief summary of the TRENEN approach is presented
followed by the results for Dublin produced from policies such as Do Nothing, Uniform pricing (internalising external costs
by means of fuel taxation), Congestion Pricing (cordon pricing) and a first-best policy, the Full Optimum where one assumes
that the policy maker has perfect pricing instruments available. As one would expect, the model shows that the greatest reduction
in traffic level and external costs would occur if it were possible to introduce a highly differentiated and sophisticated
pricing system. Increased taxation on fuel is not an efficient policy as it does not address the marginal external costs of
congestion in a way that time-differentiated road-use pricing would. The results from testing of the different measures are
interesting particularly those relating to parking and the way in which residents within the CBD and commuters to the CBD
are dealt with.
This revised version was published online in June 2006 with corrections to the Cover Date. |
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Keywords: | external costs internalisation policy and transport |
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