本文件提供了一个总体框架，用于提高基于生命周期方法评估土木工程及其相关外部工程对可持续发展的贡献的方法的质量和可比性。 本文件旨在通过为土木工程可持续性绩效评估提供一个通用框架，弥合区域和国家方法之间的差距。 本文件确定并描述了在开发和使用各类土木工程（包括新的和现有的）可持续性绩效评估方法时应考虑的问题，并与新的和现有的土木工程在其整个生命周期内的环境、社会和经济绩效评估相关。 本文件中的评估对象是土木工程本身及其影响范围。 注1:例如，评估包括土木工程直接区域以外的任何本地土木工程；土木工程用户的运输；以及土木工程本身的使用和开发。 可以对整个土木工程、部分土木工程或多个土木工程的组合进行评估。 本文件不包括环境、社会和经济风险评估，但可以考虑风险评估的结果。 本文件旨在与ISO 15392和ISO 14000系列国际标准结合使用，并遵循其中规定的原则。 土木工程的技术和功能性能评估不在本文件范围内，但技术和功能特性在本框架内参考功能等效物进行考虑。功能等效物考虑了技术和功能要求，并构成了评估结果比较的基础。 仅考虑可持续发展的三个维度中的一个或两个的评估方法不在本文件的范围之内。 本文件未设定与环境、社会和经济方面及影响相关的基准或绩效水平。 注2:估价方法、水平、等级或基准可在客户简介中的环境、社会和经济绩效要求、施工法规、国家标准、国家实践规范、土木工程评估和认证方案等中规定。 在该框架内包括在评估环境、社会和经济方面的操作方法中考虑的评估方法的规则，并确定影响评估对象的环境、社会和经济性能的决策或行动的后果，以便它们可以被考虑。

This document provides a general framework for improving the quality and comparability of methods for assessing the contribution of civil engineering works and their related external works to sustainable development based on a life cycle approach. This document aims to bridge the gap between regional and national methods for the assessment of the sustainability performance of civil engineering works by providing a common framework for their expression. This document identifies and describes issues to be taken into account in the development and use of methods for the assessment of the sustainability performance for all types of civil engineering works, both new and existing, and it is relevant for the assessment of the environmental, social and economic performance of both new and existing civil engineering works over their entire life cycle. The object of assessment in this document is the civil engineering works itself and its area of influence. NOTE 1 For example, the assessment includes any local civil engineering works beyond the immediate area of the civil engineering works; the transportation of the users of the civil engineering works; and the use and exploitation of the civil engineering works itself. Assessments can be undertaken either for the whole civil engineering works, for a part of the civil engineering works, or for a combination of several civil engineering works. This document excludes environmental, social and economic risk assessment, but the results of a risk assessment can be taken into consideration. This document is intended to be used in conjunction with, and following the principles set out in, ISO 15392 and the ISO 14000 family of International Standards. The evaluation of technical and functional performance of the civil engineering works is outside the scope of this document, but the technical and functional characteristics are considered within this framework by reference to the functional equivalent. The functional equivalent takes into account the technical and functional requirements and forms the basis for comparisons of the results of the assessment. Assessment methods that consider only one or two of the three dimensions of sustainability are outside the scope of this document. This document does not set benchmarks or levels of performance relative to environmental, social and economic aspects and impacts. NOTE 2 Valuation methods, levels, classes or benchmarks can be prescribed in the requirements for environmental, social and economic performance in the client's brief, construction regulations, national standards, national codes of practice, civil engineering works assessment and certification schemes, etc. The rules for methods of assessment to consider in the assessment of environmental, social and economic aspects of operation practices are included within this framework, and the consequences of decisions or actions that influence the environmental, social and economic performance of the object of assessment are identified so that they can be taken into account.