ISO/TR 12773-2:2009审查了全球范围内的一系列倡议和实施，就本技术报告而言，这些倡议和实施统称为健康总结记录（HSR）。它提供了国际高铁倡议的环境扫描和描述性信息，包括“经验教训”。 环境扫描是通过网络搜索和获取关键项目的公开文件完成的。根据需要联系项目发起人和/或当局，以收集更多信息，并澄清审查中出现的问题

ISO/TR 12773-2:2009 reviews a series of initiatives and implementations worldwide that for purposes of this Technical Report are collectively called health summary records (HSRs). It provides an environmental scan and descriptive information on HSR initiatives internationally, including “lessons learned”. The environmental scan was completed by performing web searches and obtaining publicly available documentation on key projects. Project sponsors and/or authorities were contacted as needed to gather additional information and clarify questions and issues arising out of the review