Update of the technical guide to designing horizontal lifelines Abstract Despite national and international regulations for the protection of workers at risk of falling 1.8 meters or more, falls from height are still a primary cause of death for construction workers. Such falls are the second leading cause of accident-related costs ($388 million per year from 2005-2007) and accounted for 21% of work-related fatalities in 2009 (approximately 6,000 falls from height per year). Horizontal lifeline systems (HLS) are an inexpensive and effective way to protect workers from falls from height. Designing them is a complex problem, however, due to the dynamic nature of the load and non-linearity of the cable.The IRSST had published an initial technical guide to designing horizontal lifelines (Report T-18) for engineers, which proposed a simple manual calculation method for determining maximum anchoring force and HLS deformation through graph reading. Since then, however, a number of documents and standards referenced in the guide have been updated, withdrawn or rewritten. The purpose of this project is to update the technical guide by developing a new calculation method incorporating anchorage rigidity and updates to standards, developing new calculation graphs and validating the new calculation method through dynamic fall testing. Produced Under this Project Scientific Reports Design of horizontal lifeline systems for fall protection – Update to technical guide Research Report: R-902, R-971 Guide and Tools HLLS: Tool for Designing a Fall Protection System Computer-based tool: UT-026 Video Reports and Conferences How To protect workers against falls from heights? Video Summary: CS-002Design of Horizontal Lifeline Systems for Fall Protection – Update of Technical Guide Conference: CF-234 Simplified Articles Chutes de hauteur : le Guide de conception des systèmes de corde d'assurance horizontale actualisé Volume 29, n0 3 Scientific Publications Excavations en milieu urbain: étançonner pour prévenir l'accidentBertrand Galy, Lan A. Source : Travail et santé, vol. 30, no 4, 2014, p. 20-22Méthode simplifiée de conception des cordes d'assurance horizontales tenant compte de la rigidité des appuisBertrand Galy, Lan A. Source : in Bien s'outiller pour intervenir: se développer, se spécialiser, se renouveler : Congrès de l'Association québécoise pour l’hygiène, la santé et la sécurité du travail / AQHSST, (36e : 7-9 mai, 2014, Beaupré, Canada), 2014Calculation of horizontal lifeline tension and deflection during fall arrest and comparison to experimental resultsBertrand Galy, Lan A. Source : Proceeding of National Occupational Injury Research Symposium (NOIRS), Kingwood, WV.Les cordes d’assurance horizontales, méthode de conception et mise en œuvre sur une charpente domiciliaire en cours de constructionBertrand Galy, Lan A. Source : Communication présentée au Midi-Conférence de l'ÉREST (Équipe de recherche en sécurité du travail), Montréal, QC.Mise à jour du guide technique de conception des cordes d'assurance horizontalesBertrand GalySource : Communication présentée au Rendez-vous de la science de l'IRSST, Montréal, QC.Quick design of horizontal lifelines considering anchorage flexibilityBertrand Galy, Lan A. Source : Communication présentée à laSlips, Trips, and Falls International Conference 2017, Toronto, ON.Horizontal lifelines: Review of regulations and simple design method considering anchorage rigidityBertrand Galy, Lan A. Source : (2018). International Journal of Occupational Safety and Ergonomics, 24(1), 135-148. doi: 10.1080/10803548.2017.1300444Conception d’un système de corde d’assurance horizontale : aspects normatifs et règlementairesLan A. , Bertrand GalySource : Travail et santé, 33(4), 18-21. Other Project(s) You May be Interested in Stability Criteria for Ladders and Stepladders Additional Information Type: Project Number: 2013-0092 Status: Completed Year of completion: 2016 Research Field: Mechanical and Physical Risk Prevention Team: Bertrand Galy (IRSST)André Lan (IRSST)