Bowtie Diagrams, a tool to improve risk analysis

Risk analysis in the lift and escalator Industry is usually conducted following the guidelines of ISO 14798: 2009. The method defined in this standard works well. Bowtie diagrams are a graphic representation of a hazard and the mitigations that either reduce the probability of occurrence of a hazardous event or reduce the harm caused by the event. Bowties help the team who is conducting a risk assessment by allowing them to visualise the issues involved. Bowties also help the personnel who are at risk to better understand the hazard and how they can reduce their risks. Bowties and how to employ them are then explained.