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首页> 外文期刊>International journal of transportation >Automated Sequence Selection and Cost Calculation for Maintenance and Rehabilitation in Highway Life-Cycle Cost Analysis (LCCA)
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Automated Sequence Selection and Cost Calculation for Maintenance and Rehabilitation in Highway Life-Cycle Cost Analysis (LCCA)

机译：公路生命周期成本分析（LCCA）中用于维护和修复的自动序列选择和成本计算

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Life-Cycle Cost Analysis (LCCA) for highway projects is an analytical technique that uses economic principles to evaluate long-term alternative investment options, especially for comparing the values of alternative pavement design structures and construction strategies. Several approaches and software have been adopted to undertake LCCA by many transportation agencies in the United States over the last decade. In 2007, the California Department of Transportation (Caltrans) adopted RealCost, the LCCA software, developed by the U.S. Federal Highway Administration (FHWA). The California implementation incorporates major user interface enhancements and customization. This paper introduces the Caltrans LCCA procedure and describes the functions and improvements of the enhanced California version of RealCost software (RealCost 2.5CA). Automated functions were developed to select efficient and adequate sequences for future maintenance and rehabilitation (M&R) for comparing alternatives. The graphical user interface integrates service life, maintenance frequency, and agency cost of each maintenance activity with given project constraints, such as climate region, final pavement surface, and design life. The automated cost calculation modules estimate future M&R costs based on each construction scope and pavement type. The main focus of the California LCCA enhancement is to improve the efficiency of LCCA procedures with automatic data selection and computations. The RealCost 25CA program has been adopted as an official LCCA tool to comply with regulatory requirements for California state highway projects. Utilization of this California-customized LCCA software helps Caltrans to achieve substantial economic benefits (agency cost and road user cost savings) for highway projects.
机译：公路项目的生命周期成本分析（LCCA）是一种分析技术，它使用经济原理来评估长期的替代投资方案，尤其是用于比较替代路面设计结构和施工策略的价值。在过去的十年中，美国许多运输机构已经采用了几种方法和软件来进行LCCA。 2007年，加利福尼亚州交通运输部（Caltrans）采用了由美国联邦公路管理局（FHWA）开发的LCCA软件RealCost。加利福尼亚州的实施包含主要的用户界面增强功能和自定义功能。本文介绍了Caltrans LCCA程序，并描述了增强版RealCost加利福尼亚软件（RealCost 2.5CA）的功能和改进。开发了自动功能，以选择有效和适当的顺序以用于将来的维护和修复（M＆R），以比较替代方案。图形用户界面将使用寿命，维护频率和每次维护活动的代理商成本与给定的项目约束（例如气候区域，最终人行道表面和设计寿命）进行了集成。自动化成本计算模块根据每种施工范围和路面类型估算未来的M＆R成本。加州LCCA增强的主要重点是通过自动数据选择和计算来提高LCCA程序的效率。 RealCost 25CA程序已被用作官方LCCA工具，以符合加利福尼亚州高速公路项目的法规要求。使用加利福尼亚州定制的LCCA软件可以帮助Caltrans为公路项目获得可观的经济利益（机构成本和道路用户成本节省）。

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