Rdso Technical Pamphlet G73 May 2026

Now, G73... I remember that RDSO has various pamphlets for different purposes. Maybe G73 is related to something specific like railway tracks, signaling, or maybe materials? Wait, I think some of their pamphlets deal with maintenance practices. For example, G83 was about track geometry and G84 about ballast. But G73—I need to check that. Since I can't look it up, I'll have to infer based on possible technical topics relevant to railways.