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International Journal of Environment Science and Technology
Center for Environment and Energy Research and Studies (CEERS)
ISSN: 1735-1472
EISSN: 1735-2630
Vol. 2, No. 1, 2005-2006, pp. 83-96
Bioline Code: st05011
Full paper language: English
Document type: Research Article
Document available free of charge

International Journal of Environment Science and Technology, Vol. 2, No. 1, 2005-2006, pp. 83-96

 en Sustainable transport indicators: Definition and integration
A. A. Rassafi and M. Vaziri


In this paper, a different interpretation of sustainable transportation, is introduced, in which sustainability with respect to transportation sector for the selected countries is evaluated. This interpretation characterizes "sustainable development" through "harmonic development". It means sustainable development with special focus on transportation can be measured by the degree of conformity between environment, economy, and social aspects on one hand, and transportation on the other hand. The best indicator to perform such a measurement is elasticity. The database used for the study encompasses a series of national indicators for each country Seventy nine countries were initially selected for detailed analysis for the period of 1980 - 1995. The data have been extracted from centralized information sources of international agencies. The key dimensions of sustainable development i.e. social, environmental, and economic characteristics are used. Firstly, a set of sustainable transportation indicators is introduced. These indicators, which in fact are elasticities, show the relative change of non-transportation variables with respect to transportation ones. Second composite indices of three non-transportation groups with respect to four transportation modes are calculated. The composite indices are then aggregated by the Concordance Analysis Technique to achieve comprehensive transportation sustainability indices of countries, and according to these values, the countries are compared, ranked, and classified. Mathematical and statistical analyses of the database support the study quantitatively. The results for the selected indicators and countries show that from sustainable transportation point of view and based on the above-mentioned interpretation of sustainable development, United States is in the ranked first, and Sierra Leon is last among the subset of 79 countries with non-missing data. The results of the study depict an overall scheme for comparative assessment of transportation sustainability of the countries.

Sustainable transportation, elasticity, concordance analysis, comparative study, measurement

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