Comparisons
Side-by-side explainers of the questions professionals search — every claim linked to the documents.
EN 50128 vs EN 50716: what actually changed
EN 50716:2023 replaced both EN 50128 and EN 50657 as the railway software standard — what changed, what survived, and what it means for running projects.
ETCS Baseline 3 vs Baseline 4: what changes and who must care
ETCS Baseline 4 (SRS 4.0.0) vs Baseline 3 (3.4.0/3.6.0): FRMCS readiness, ATO over ETCS, the 2023 CCS TSI mandate, and how compatibility is managed.
The 2023 TSI package: what changed, TSI by TSI
The 2023 revision touched every structural TSI and recast the CCS TSI for ETCS Baseline 4, FRMCS and ATO — a map of what changed and where the details live.