Publicaciones

Sustainable Pavement Management: Integrating Economic, Technical, and Environmental Aspects in Decision Making

Investigadores

Alondra Chamorro

Journal

Transportation Research Record

Institución

Pontificia Universidad Católica de Chile

Disciplina

Ingeniería Civil

afiliacion

  1. Cristina Torres-Machí, Department of Construction Engineering and Civil Engineering Projects, School of Civil Engineering, Universitat Politècnica de València, Camino de Vera, s/n, 46022, Valencia, Spain. Department of Engineering and Construction Management, School of Engineering, Pontificia Universidad Católica de Chile, Av. Vicuña Mackenna 4860. Edif. San Agustín Piso 3, Santiago, Chile
  2. Alondra Chamorro, National Research Center for Integrated Natural Disaster Management, School of Engineering, Pontificia Universidad Católica de Chile, Av. Vicuña Mackenna 4860. Edif. San Agustín Piso 3, Santiago, Chile
  3. Eugenio Pellicer, Department of Construction Engineering and Civil Engineering Projects, School of Civil Engineering, Universitat Politècnica de València, Camino de Vera, s/n, 46022, Valencia, Spain
  4. Víctor Yepes, Institute of Science and Concrete Technology, Department of Construction Engineering and Civil Engineering Projects, School of Civil Engineering, Universitat Politècnica de València, Camino de Vera, s/n, 46022, Valencia, Spain
  5. Carlos Videla, Department of Engineering and Construction Management, School of Engineering, Pontificia Universidad Católica de Chile, Av. Vicuña Mackenna 4860. Edif. San Agustín Piso 3, Santiago, Chile

Abstract

Sustainability, which is founded on the reconciliation of economic, environmental, and social aspects, has become a major issue for infrastructure managers. The economic and environmental impacts of pavement maintenance are not negligible. More than $400 billion are invested globally each year in pavement construction and maintenance. These projects increase the environmental impacts of vehicle operation by 10%. Because maintenance should be technically appropriate, infrastructure managers must integrate technical, economic, and environmental aspects in the evaluation of maintenance alternatives over the life cycle of a pavement. However, these aspects are normally assessed in measurement units that are difficult to combine in the decision-making process. This research examined and compared methods for the integrated consideration of technical, economic, and environmental aspects, and this study aimed to assist highway agencies, researchers, and practitioners with the integration of these aspects for the sustainable management of pavements. For this purpose, a set of maintenance alternatives for asphalt pavements was evaluated. Methods for the integration of these aspects were explored and led to recommendations for the most suitable methods for different scenarios. As a result of this analysis, the analytic hierarchy process (AHP) is recommended when the number of alternatives is small. In these situations, the AHP leads to results that are similar to those of the weighting-sum and multiattribute approaches that are frequently used for intuitive selection. However, when the number of alternatives is large, pair comparison becomes difficult with the AHP and the weighting-sum method becomes more appropriate.

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