The choice of different kind of technologies to be adopted for the construction of road pavement is a subject of great interest both in the international and in the Italian context. Pavement is one of the most expensive component in the road infrastructure system. The analysis of the literature, as well as the empirical experiences, shows that from a sustainable perspective the decision problem concerning the choice of technologies to be adopted, has turned the attention towards evaluation methodologies able to integrate aspects that are not directly measurable in monetary terms, such as the environmental aspects (Zhang et al. 2010; Lidicker et al. 2013; TorresMachi et al. 2017). The present contribution proposes an Integrated Evaluation System to support the choice between two different road paving technologies, namely interlocking concrete blocks paving and bituminous conglomerate. In order to evaluate the most convenient and sustainable option by considering economic and environmental costs, the proposed approach is based on the integration of different evaluation models, each capable of capturing multiple and complementary aspects. Specifically, the Life Cycle Costing Analysis (LCCA) has been firstly applied, as a decision criterion introduced by the Legislative Decree 50/2016 for the evaluation of the financial aspects related to the entire products’ life cycle. The results obtained are then verified according to the Whole Life Costing (WLC) approach, by introducing also the “Event related costs” in addition to the main environmental costs. Finally, the choice between the different road paving alternatives has been supported by a Multicriteria Analysis, that allows to carry on the comparison between the two above mentioned options by a comprehensive analytical framework based on the economic, social and environmental dimensions of sustainability. The proposed evaluation approach allows to test the robustness and the degree of suitability of the alternative options under investigation by pointing out the trade-off among all the aspects involved and by integrating three different methodologies.
An integrated decision support system for the sustainable evaluation of pavement technologies
Paganin G.;Dell'Ovo M.;Oppio A.;Torrieri F.
2020-01-01
Abstract
The choice of different kind of technologies to be adopted for the construction of road pavement is a subject of great interest both in the international and in the Italian context. Pavement is one of the most expensive component in the road infrastructure system. The analysis of the literature, as well as the empirical experiences, shows that from a sustainable perspective the decision problem concerning the choice of technologies to be adopted, has turned the attention towards evaluation methodologies able to integrate aspects that are not directly measurable in monetary terms, such as the environmental aspects (Zhang et al. 2010; Lidicker et al. 2013; TorresMachi et al. 2017). The present contribution proposes an Integrated Evaluation System to support the choice between two different road paving technologies, namely interlocking concrete blocks paving and bituminous conglomerate. In order to evaluate the most convenient and sustainable option by considering economic and environmental costs, the proposed approach is based on the integration of different evaluation models, each capable of capturing multiple and complementary aspects. Specifically, the Life Cycle Costing Analysis (LCCA) has been firstly applied, as a decision criterion introduced by the Legislative Decree 50/2016 for the evaluation of the financial aspects related to the entire products’ life cycle. The results obtained are then verified according to the Whole Life Costing (WLC) approach, by introducing also the “Event related costs” in addition to the main environmental costs. Finally, the choice between the different road paving alternatives has been supported by a Multicriteria Analysis, that allows to carry on the comparison between the two above mentioned options by a comprehensive analytical framework based on the economic, social and environmental dimensions of sustainability. The proposed evaluation approach allows to test the robustness and the degree of suitability of the alternative options under investigation by pointing out the trade-off among all the aspects involved and by integrating three different methodologies.| File | Dimensione | Formato | |
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