The management of railway infrastructure projects can be supported by collaborative digital platforms. A survey was carried out to identify the needs and expectations of the various stakeholders involved in the design and construction of railway infrastructure projects regarding collaborative platforms. These needs and expectations can then be translated into functional specifications to be included in the digital platforms. A total of 21 interviews were conducted between October and December 2022, during which 35 individuals were interviewed. Key roles were represented across the different project phases: engineers from design and construction firms, project managers, infrastructure managers. And various engineering fields were represented: civil, electrical, telecommunications, tracks, systems. These interviews were carried out by CentraleSup{é}lec | Universit{é} Paris-Saclay and by SNCF R{é}seau using a structured protocol designed to collect the specific needs of the interviewees for collaboration, as well as the guiding principles that shape both individual work practices and collaboration between professions. The resulting material was analyzed and then synthesized into a conceptual model of a collaborative digital platform for supporting the design and construction phases in a railway infrastructure project. Also, from these interviews emerged five core functionalities that the platform must offer: Providing access to existing infrastructure data; Accelerating repetitive tasks; Verifying essential project requirements; Supporting decision-making; Facilitating coordination among stakeholders.

翻译：铁路基础设施项目的管理可借助协同数字平台获得支持。本研究通过一项调查，旨在识别铁路基础设施项目设计与建造过程中各相关方对协同平台的需求与期望。这些需求与期望可进一步转化为功能规范，纳入数字平台之中。2022年10月至12月期间，共进行了21场访谈，受访者达35人。访谈覆盖了项目各阶段的关键角色：设计与施工企业的工程师、项目经理、基础设施管理者；同时涵盖了多个工程领域：土木、电气、通信、轨道、系统。这些访谈由CentraleSupélec | Université Paris-Saclay与SNCF Réseau共同执行，采用结构化访谈提纲，旨在收集受访者在协作方面的具体需求，以及塑造个人工作实践与跨专业协作的指导原则。对访谈材料的分析与综合，最终形成了一个用于支持铁路基础设施项目设计与施工阶段的协同数字平台概念模型。此外，基于访谈提炼出平台必须具备的五项核心功能：提供现有基础设施数据的访问；加速重复性任务；验证关键项目需求；支持决策制定；促进利益相关方间的协调。