Human performance is a critical element to consider in risk assessments. The rail sector relies on roles such as train drivers, signallers and maintenance staff to ensure the reliability of railway systems. The Railway Action Reliability Assessment (RARA) tool can be used to evaluate human performance and inform risk assessment. The tool is based on a user manual and a supporting calculation spreadsheet which can be provided to members upon request. The RSSB human factors team also offer human reliability assessment training - please contact Huw Gibson for further information.