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Life cycle cost analysis based on the fundamental cost contributors for asphalt pavements

机译：基于沥青路面基本成本因素的生命周期成本分析

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摘要

A life cycle costing system should include the key variables that drive future costs in order to provide a framework for reducing the risk of under- or overestimating the future costs for maintenance and rehabilitation activities. In Sweden, price of oil products is mostly affected by the global economy rather than by the national economy. Whereas the price index of oil products has had a high fluctuation in different time periods, the cost fluctuation related to labour and equipment has been steady and followed the consumer price index (CPI). Contribution of the oil products was shown to be more than 50% of the total costs regarding construction and rehabilitation of asphalt pavements in Sweden. Consequently, it was observed that neither Swedish road construction price index (Vagindex) nor CPI has properly reflected the price trend regarding the asphalt pavement construction at the project level. Therefore, in this study, a framework is suggested in which energy- and time-related costs are treated with different inflation indices in order to perform a better financial risk assessment regarding future costs.
机译：生命周期成本核算系统应包括驱动未来成本的关键变量，以便提供一个框架，以减少低估或高估维护和康复活动的未来成本的风险。在瑞典，石油产品的价格主要受全球经济影响，而不是受国民经济影响。尽管不同时期的石油产品价格指数波动较大，但与劳力和设备相关的成本波动却一直保持稳定，并遵循了消费者价格指数（CPI）。在瑞典，沥青产品的建造和修复费用占总成本的50％以上。因此，据观察，瑞典道路建设价格指数（Vagindex）和CPI均未正确反映项目级别沥青路面建设的价格趋势。因此，在本研究中，提出了一个框架，其中以不同的通胀指数处理与能源和时间相关的成本，以便对未来成本进行更好的财务风险评估。

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