Learning from Close Calls

This report is the first deliverable from the Learning From Close Call Events project being undertaken by the University of Huddersfield as part of the Strategic Partnership with RSSB. The Close Call database is maintained by RSSB, detailing safety‐related incidents from the railway which had
the potential to, but did not, lead to accidents. The object of the project is to use computer-based methods to extract safety learning from the unstructured data in the Close Call database. This work reports the proof-of-principle for computer-based extraction of safety lessons from the Close
Call database; it demonstrates a functioning process for computer-based information extraction and demonstrates its successful use in two case studies.