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Le transport routier énergiquement durable : état des lieux, modélisation et aide à la décision publique en Tunisie

Abstract : As global concern about climate increases, road transport energy consumption, given its impact on the environment and its socio-economic role, must evolve to sustainability logic. First, the present work provides an international comparison of the energy intensity and the CO2 intensity in road transport for a group of 90 countries oer the period 1980-2010. Through the calculated Theil coefficient, our empirical findings highlight the existence of spatial and temporal disparities between coustries. In 2010, Tunisia occupies the 48th and the 38th rank respectively in terms of energy and environmental efficiency.Based on a general index of energy performance in the road transport sector, it is deemed to have a medium energy performance by occupying the 34th rank. Secondly, through the adoption of conceptual modeling approach, several indicators for sustainable energy development in road transport sector are constructed. To measure the real transport value added, we used filter Kalman approach. We denote that the informal transport value added is about 61% during the period 1980-2010.Finally, this thesis studies causal mechanisms between indicators for sustainable energy development related to energy consumption from Tunisian road transport sector. The investigation is made using the Johansen cointegration technique and the environmental Kuznets curve (EKC) approach. It examines the nexus between real transport value added , road transport-related energy consumption, road infrastructure, fuel price, rate of motorization and CO2 emissions from Tunisian transport sector during the same period. Empirical results support the hypothesis of neutrality between energy and income for Tunisian road transport sector, and the hypothesis of an inverted U-shaped EKC for transport CO2 emissions. Also, there is a unidirectional Granger causality running from fuel price to road transport-related energy consumption with no feedback in the short run. In this sense, using price decomposition technique, we refute asymmetric fuel price effect hypothesis. By the introducing of the technological factor, the rebound effect is about 18% in the short run and 51% in the long run. The study shows the importance if enhancing a number of policies for the road transport system through the joint improvement of the fuel price policy, of the road infrastructure policy and of the road vehicles policy. The optimal combination of fiscal, economic and regulatory instruments is the main strategy to achieve these objectives. The energetic governance is necessary in order to maintain sustainable energy road transport.
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Submitted on : Wednesday, July 5, 2017 - 9:36:00 AM
Last modification on : Tuesday, November 22, 2022 - 2:26:15 PM
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  • HAL Id : tel-01323023, version 1

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Khaled Ben Abdallah. Le transport routier énergiquement durable : état des lieux, modélisation et aide à la décision publique en Tunisie. Economies et finances. Université du Littoral Côte d'Opale; Université de Sousse (Tunisie). Faculté des sciences économiques et de gestion, 2015. Français. ⟨NNT : 2015DUNK0371⟩. ⟨tel-01323023⟩

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