en.Wedoany.com Reported - Two international standards, in whose development the China Railway First Survey and Design Institute Group Co., Ltd., a subsidiary of China Railway Construction Corporation (CRCC), was deeply involved—Railway Applications — General Vocabulary and Railway Applications — Calculation of Running Times for Timetable Construction — Part 2: Distance-Speed Diagrams and Speed Profiles—have been officially released successively by the International Organization for Standardization (ISO), injecting strong Chinese momentum into the global railway standards system.

Railway Applications — General Vocabulary falls under the purview of the "Railway Applications" technical committee. It is the first foundational and universal terminology standard released since the committee's establishment and serves as one of the top-level design documents for the global railway sector. This standard covers all technical fields of rail transit, systematically defining key terms in the railway domain at the international level for the first time. It encompasses system classification, infrastructure, rolling stock, and operational services, providing a unified and authoritative "terminology dictionary" for countries worldwide in equipment manufacturing, engineering construction, operation and maintenance, and scientific research, thereby completely filling a gap in the international railway terminology system. Following its implementation and release, the standard will help facilitate cross-border project cooperation and railway interconnectivity under the Belt and Road Initiative, provide a basis for aligning various types of Chinese rail transit with international practices, further enhance the global recognition of Chinese standards, and signify that Chinese railway standards have achieved a leap from "following" to "running alongside and leading."

Railway Applications — Calculation of Running Times for Timetable Construction — Part 2: Distance-Speed Diagrams and Speed Profiles, also under the "Railway Applications" technical committee, systematically standardizes the complete process of drawing distance-speed diagrams, calculating speed profiles, determining minimum running times, and verifying results. It is widely applicable to the compilation of various railway working timetables, providing a systematic and promotable basis for running time calculation for the global railway industry and filling a standard gap in the international field of timetable calculation. The implementation and release of this standard will significantly enhance line throughput efficiency and operational management levels, standardize global railway running time calculation methods, strengthen the competitive advantage of rail transport, and solidify the standardization foundation for cross-border railway interconnectivity under the Belt and Road Initiative. It holds great significance for promoting the alignment of Chinese railway technical standards with international ones and enhancing China's voice and influence in the field of international railway standardization.

During the drafting process, the technical team from the First Survey and Design Institute fully leveraged its technical advantages in areas such as line design and transportation organization. Closely integrating China's extensive engineering practice and technical accumulation in plateau railways, high-speed railways, heavy-haul railways, and urban rail transit, the team put forward numerous constructive suggestions targeting technical difficulties and practical pain points in the standards. They conducted extensive research and comparison work on the English definitions of key terms, corresponding Chinese translations, and conceptual delimitations under different technical systems. They also participated in multiple rounds of international meetings, draft discussions, and voting sessions, engaging in in-depth exchanges and consultations with experts from countries such as Germany, France, the United Kingdom, and Japan. This successfully embedded mature technical language from Chinese high-speed railways and intelligent railways into the international standard framework, ensuring the standards are authoritative, rigorous, globally compatible, and practical, making a positive contribution to creating a "Chinese model" for international standard development.

In subsequent work, CRCC will take this as an opportunity to continuously track international standard trends, rely on its platform advantages, actively participate in the development of more international standards in the railway and urban rail transit fields, and promote the solid advancement of Chinese railways from "major national projects" to "global standards."

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