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Abstract
The object of the present work was to carry out the environmental assessment of a new metro line in Madrid by means of an emission model using a down – up methodology, calculation parameters of which were taken from the European Union-sponsored programmes CORINAIR 99 and COPERT 2000. The study assesses emissions over different time horizons, taking into account the resulting variations in traffic speed and intensity upon the opening of the new infrastructure. The results obtained show that the construction of the line has led to a significant reduction in the various pollutant emission levels, particularly in the areas closer to the city. The most significant reductions are expected to be even greater in future scenarios.
Acknowledgements
The authors wish to thank the following: TRANSYT, the Research Transport Centre of the Polytechnic University of Madrid, for its technical support, especially O. Martínez and O. Vieira; TFM, the concessionaire of the Arganda metro line, and the ‘Madrid Transport Consortium’ for the information they provided to us, which has made this study possible. We are also indebted to the engineers A. Majano, J. Sastre and C. Valdés of the engineering firm SENER, for their modelling in EMME-2 of the Madrid transport network, which proved essential to the accomplishment of this work. This study was funded by TFM, the concessionaire of the Arganda metro line.