In the "Preparatory study for the impact assessment relating to achieving the internal market for intra-European trade using maritime transport (IA-EMS)" (PriceWaterhouseCoopers, CERTeT-Bocconi, 2008), performed on behalf of the European Commission, a methodology based on CBA was developed. The peculiarities of this methodology reside in the approach that is used to implement the CBA, given the wide geographical scope of the policy, and the peculiarities of the problems addressed by the new legislation proposal itself. Since the implementation of such European policies occurs on a (at least) Community scope, the sole use of bottom-up methodologies (such as the ones that generally are used in the application of CBA’s of transport projects on a local level) turns out to be troublesome, in particular for the estimation of the modal shift deriving from the implemented policies. The proposed methodology, therefore, envisages a mixed top-down and bottom-up approach, where “top-down” is referred to an estimation based on an aggregated result which is therefore distributed among specific measures, and “bottom-up” is referred to an estimation where unitary cost or benefit parameters are applied to directly measurable phenomena. Moreover, the bottom-up approach allows to take into account – even in the case of wider scope assessments – geographical and logistic peculiarities of services supplied throughout Europe. Indeed, the present CBA approach (bottom-up side) aimed at assessing the economic impact of the new legislation both in terms of "time related costs" (all costs proportional to the duration of port operations) and of "time costs" (costs connected with the time spent by freight during the entire supply chain involving port operations). A further peculiar aspect is the attempt to measure such economic impacts with a strongly demand oriented approach, i.e. starting from the real measurement unit involved in administrative operations in ports, which is the "bill of lading".
Una metodologia di analisi costi-benefici nell'impact assessment delle politiche dei trasporti
VAGHI, CARLO;SICILIANO, GIUSEPPE
2009
Abstract
In the "Preparatory study for the impact assessment relating to achieving the internal market for intra-European trade using maritime transport (IA-EMS)" (PriceWaterhouseCoopers, CERTeT-Bocconi, 2008), performed on behalf of the European Commission, a methodology based on CBA was developed. The peculiarities of this methodology reside in the approach that is used to implement the CBA, given the wide geographical scope of the policy, and the peculiarities of the problems addressed by the new legislation proposal itself. Since the implementation of such European policies occurs on a (at least) Community scope, the sole use of bottom-up methodologies (such as the ones that generally are used in the application of CBA’s of transport projects on a local level) turns out to be troublesome, in particular for the estimation of the modal shift deriving from the implemented policies. The proposed methodology, therefore, envisages a mixed top-down and bottom-up approach, where “top-down” is referred to an estimation based on an aggregated result which is therefore distributed among specific measures, and “bottom-up” is referred to an estimation where unitary cost or benefit parameters are applied to directly measurable phenomena. Moreover, the bottom-up approach allows to take into account – even in the case of wider scope assessments – geographical and logistic peculiarities of services supplied throughout Europe. Indeed, the present CBA approach (bottom-up side) aimed at assessing the economic impact of the new legislation both in terms of "time related costs" (all costs proportional to the duration of port operations) and of "time costs" (costs connected with the time spent by freight during the entire supply chain involving port operations). A further peculiar aspect is the attempt to measure such economic impacts with a strongly demand oriented approach, i.e. starting from the real measurement unit involved in administrative operations in ports, which is the "bill of lading".
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