Desarrollo de una herramienta de toma de decisiones para la gestión del mantenimiento de pavimentos bajo criterios de sostenibilidad. Aplicación a la red vial urbana de la ciudad de Valencia

[EN] The road network is one of the greatest patrimonial assets of a country, state or city. It also provides a fundamental basis for the growth and economic development, giving huge economic and social benefits. Likewise, it contributes significantly with environmental damages during its construction, maintenance and use. It is important to say that the maintenance of a road network in good conditions is vital to reduce transportation costs, aiding to the economy of a country. Thus, a good pavement management could translate in economics, environmental and social benefits but above all in a significant improvement of the patrimonial assets. The present work focuses on the development of a making decisions tool for the management of maintenance of pavements of urban road networks. With it, it is intended to achieve the better increase of the road network value using the least possible investment and warranting the sustainability of the infrastructures. The proposed methodology stablishes a set of economics, technical, environmental and social criteria, which are quantitively valued. This valuation combined with the SAW method (Simple Additive Weighting) allows to stablish an annual priority ranking of the roads in which one must act with maintenance and rehabilitation works. For the calibration of the relative weights of each criterion, the making decision tool, is applied to a Valencia's urban road network sample. For this, a sensitivity analysis is proposed in which 22 scenarios with different combinations of relative weights are compared. The comparison criterion used, is the ratio benefit-cost, it is obtained from the economic assessment in a horizon of 4 years for each of the scenarios. This work concludes by setting the optimal scenario of relative weights to use in the making decision tool for the pavement maintenance management. The quantification of the improvement of the road network's value and the benefit-cost ratio, allows to demonstrate and conclude that the making decisions using the development tool, generates in long-term greatest economics benefits than those obtained with the common practices. [CA] La xarxa vial és un dels majors béns patrimonials d'un país, comunitat o ciutat. A més, proporciona una base fonamental per al creixement i desenrotllament econòmic, dotant d'amplis beneficis econòmics i socials. De la mateixa manera, contribuïx significativament amb danys mediambientals durant la seua construcció, manteniment i ús. Cal recalc