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SwitzerlandLogistics and transport2017 – ongoing

SBB (Swiss Federal Railways)

Deep learning for rail-defect inspection

SBB and CSEM reported a 10-fold improvement in rail-defect detection in field tests

WorkingCompany's own claim

Problem

Manual track inspections became harder as train traffic increased. Earlier image-analysis methods generated too many false findings because outdoor rail conditions varied widely.

Approach

SBB worked with CSEM on software for images collected by diagnostic trains. CSEM developed modules to detect and classify anomalies, with rail experts supplying labeled examples. Human specialists still checked the automated findings.

Results

No published figures

Takeaway

The software supported inspectors handling large image collections. Expert review remained necessary because automated analysis had not matched human assessment quality.

Categories

Business function
Production and quality
Innovation type
Process innovation
AI technology
Computer vision
Evidence
Company's own claim

Sources

  1. Künstliche Intelligenz auf Schienen
    Bulletin.ch2 Sep 2019News article

Source summaries

[1]Bulletin.ch2 Sep 2019

SBB and CSEM staff described deep-learning software for diagnostic-train images. They explained the false findings produced by earlier methods and the continued need for manual verification.

Full details are in the original sources.

Added 1 Nov 2026 · Updated 1 Nov 2026
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