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首页> 外文期刊>The International Journal of Life Cycle Assessment >Multi-attribute life cycle assessment of preventive maintenance treatments on road pavements for achieving environmental sustainability
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Multi-attribute life cycle assessment of preventive maintenance treatments on road pavements for achieving environmental sustainability

机译：道路路面预防性养护处理的多属性生命周期评估，以实现环境可持续性

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Purpose Although a significant number of environmental protection measures concerning industrial products and processes have emerged over the past few years, similar measures have only started to appear in road construction and related practices. There is a need for understanding what a "sustainable pavement" would entail in terms of greenhouse gas emissions and energy consumption. Since environmental impact assessment of major projects is becoming mandatory in many countries, various research projects attempt to evaluate the environmental impact of different pavement materials, technologies, or processes over the road life cycle. To support these efforts, there is a need to measure and describe different aspects of sustainability related to road pavements. In particular, keeping road pavements at high service levels through a preventive maintenance approach during the pavement service life has been proven to provide significant improvement of their performance and reduce their deterioration rate. Methodology This paper describes an innovative methodology to evaluate the environmental impact of preventive maintenance activities. It relates these activities to performance and cost during the service life of the pavement through a multi-attribute "life cycle cost, performance, and environmental analysis". Emissions and energy saved adopting several preventive maintenance strategies were computed, relating them to cost and performance. Equipment and materials usually involved in road maintenance practices were also analyzed in order to assess specific fuel consumption and energy spent. An ad hoc index was ultimately created, adopting a script file to evaluate the best strategy through the multi-attribute approach. Results and conclusions Results show how eco-effective it can be to improve pavement management practices on roads by implementing energy efficient treatments and strategies. Furthermore, eco-saving factors could represent a new and innovative feature to be added in the sustainability assessment process for pavements to evaluate different alternatives and assist authorities choosing between different investment solutions as a part of a decision support system.
机译：目的尽管在过去几年中出现了许多有关工业产品和过程的环境保护措施，但类似的措施才开始出现在道路建设和相关实践中。有必要了解温室气体排放和能源消耗方面的“可持续路面”。由于在许多国家/地区，主要项目的环境影响评估已成为强制性要求，因此各种研究项目都试图评估不同路面材料，技术或过程对整个生命周期的环境影响。为了支持这些努力，需要测量和描述与路面相关的可持续性的不同方面。尤其是，已证明在路面使用寿命期间通过预防性维护方法将路面保持在较高的服务水平，可以显着改善其性能并降低其劣化率。方法论本文介绍了一种创新的方法论，用于评估预防性维护活动对环境的影响。通过多属性“生命周期成本，性能和环境分析”，将这些活动与路面使用寿命中的性能和成本相关联。计算了采用几种预防性维护策略所节省的排放量和能源，并将它们与成本和性能相关联。还分析了通常涉及道路养护实践的设备和材料，以评估特定的燃料消耗和能源消耗。最终创建了一个临时索引，采用了脚本文件以通过多属性方法评估最佳策略。结果与结论结果表明，通过实施节能处理和策略，改善公路路面管理实践具有生态效益。此外，生态节约因素可以代表一种新的创新功能，可在人行道的可持续性评估过程中添加，以评估不同的替代方案，并协助当局在不同的投资解决方案之间进行选择，作为决策支持系统的一部分。

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