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Safety @ Open Days 2019 focus on underground visits sites

This document outlines the safety strategy for the underground visits at Open Days 2019, focusing on preventive measures, radiation protection, underground capacity, technical support, emergency support, training for volunteers, and accommodations for people with limited mobility.

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Safety @ Open Days 2019 focus on underground visits sites

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  1. Safety @ Open Days 2019focus on underground visits sites Feed back from the ED

  2. Safety strategy ED – Safety @ Open days 2019

  3. Safety strategy: Preventive measures • Electrical « Lock-out »(1) • Try to keep only “Service Généraux” • Secure UPS as much as possible • Cryo « Lock-out » (all gas in general as much as possible)(1) • Reduce storage as much as possible(2) • Safety signage: from the web to the LHC • Visitor pathways secure(2) (1) TIOC 03/04, G. Cumer – (2) Underground safety visits 30/04 - 05/06 ED – Safety @ Open days 2019

  4. Safety strategy: Radiation Protection • Memo RP “Radiation Protection requirements for Open Days 2019 visits in Radiation Areas”EDMS: 2110782/2 Date: 29.03.2019 • Visits areas, itineraries, age restriction, volunteer mission, dosimetry, … • Specific Memo on going for special egress through controlled areas with specific emergency situation • IMPACT process to monitor CERN guide’s dose ED – Safety @ Open days 2019

  5. Safety strategy: Underground capacity • 23/01/2019: Proposal of LHC underground visit WP Leaders reproduce OD2013 and LS1 condition (limitation of 3 per/m2 in safe zones) • from the study “LHC Evacuation Assessment for LS1”, EDMS 1246565 • 29/01/2019: Author of the study explain why it can not be extrapolated for OD2019 • Public vs. workers, training, crowd management conditions (groups, distances, …) • 22/02/2019: HSE proposes a different approach based on good practice in tunnel (with limitation of 2 per/m2 in safe zones) ED – Safety @ Open days 2019

  6. Safety strategy: Underground capacity Safety strategy: Underground capacity • New approach: • Based on CETU(1) recommendation from «note d’information du CETU n°8 de novembre 1997 relative aux abris dans les tunnels routiers (§5 règlementation).» • Un abri est un local sûr, isolé du feu et ventilé, dans lequel les usagers ont la possibilité d'être en communication avec les agents de surveillance jusqu'à ce que la situation soit maîtrisée et que les équipes d'intervention puissent les évacuer (…)” • Surface - Capacité d'accueil : Pour un taux d'occupation de 2 personnes au mètre carré, un abri d'une surface de 50 m2peut accueillir 100 personnes. (…) On vérifie que l'abri peut contenir les usagers des véhicules arrêtés sur une file (160 véhicules par kilomètre) sur 400m à raison de1,3 personne en moyenne par véhicule. Ceci est le cas des véhicules bloqués dans un tunnel à un seul tube à deux voies, avec un trafic bidirectionnel. Les usagers qui se trouvent en aval de l'incendie sont censés pouvoir sortir en voiture.  (1): “Centre d’Etude des Tunnels”, http://www.cetu.developpement-durable.gouv.fr ED – Safety @ Open days 2019

  7. Safety strategy: Underground capacity First theoretical impact prepared in February 2019: 1092 visits per hour to 996 visits: -8,7% Main impact ALICE 240 to 204, CMS 300 to 240. ED – Safety @ Open days 2019

  8. CMS Safe zone SDX5 W2 64 m2 18 m2 ED – Safety @ Open days 2019

  9. Safety strategy: Underground capacity ED – Safety @ Open days 2019

  10. Safety strategy: Underground capacity ED – Safety @ Open days 2019

  11. Safety strategy: Technical support (for LHC part) • « Piquet Ascenseur » physically on each LHC site • « Piquet Ventilation » physically on each LHC site • « Piquet Electrique » physically on each LHC site • « Piquet RP » physically on several LHC sites • LEXGLIMOS (or deputy) physically on LHC site • Dedicated TI operator for OD Coordination centre (160) • Specific TETRA network in collaboration with IT ED – Safety @ Open days 2019

  12. Safety strategy: Emergency support • First-aid point with FB and hosts state support • 41 Fire-fighters form CERN • 44 Fire-fighters / Paramedic form hosts states • Underground guides and Crowed-Marshal trained ”CERN first aider” • « Piquet HSE Accident/prevention » physically on several LHC sites ED – Safety @ Open days 2019

  13. Safety strategy: Training for volunteer ED – Safety @ Open days 2019

  14. People with limited mobility ED – Safety @ Open days 2019 – EDMS 2166516

  15. People with limited mobility in LHC Special pathways technically accessible for wheelchair ED – Safety @ Open days 2019

  16. People with limited mobility in LHC • Emergency plan made in collaboration with hosts states • Inspire by FR/CH regulations • Dispositifprevisionnel de secours (FR) • Directives pour l’organisation du service sanitaire lors de manifestations (CH) • Define a “ratio” of resources after analysis based on: • Effectif et comportement du public ; • Caractéristiques de l'environnement et accessibilité du site ; • Délaid'intervention des secours publics, • … ED – Safety @ Open days 2019

  17. People with limited mobility in LHC • Based on • resources already found and CERN Fire Brigade initial analysis • Still 20 external Fire-fighters / Paramedic to be found • Memo about Rescue Operations and Handicapped visitors - OD2019 EDMS 2166515 • Each point with limited mobility public needs • 4 external Fire-fighters and 1 CERN Fire-fighter pre-positioned with one fire truck “dedicated” Very low chance to found adequate resources for the 3 LHC points ED – Safety @ Open days 2019

  18. People with limited mobility in LHC • Proposal: • Make it possible for point LHC5 – CMS (already almost done) • Extend to LHC6 is not recommended • Extend to LHC4 is not recommended ED – Safety @ Open days 2019 – EDMS 2166516

  19. Back-up slides ED – Safety @ Open days 2019 – EDMS 2166516

  20. Web • Ticketing / print • Site entry (A0): Meyrin, Prevessin, LHC … 11 • Group forming area (A1) 35 • LHC lifts (A2) 5 ED – Safety @ Open days 2019 – EDMS 2166516

  21. ED – Safety @ Open days 2019 – EDMS 2166516

  22. Maximum admissible crowding in safe zones Maximum value 4 persons/m2 Nominal value 3 persons/m2 3 ≤ d ≤ 4 Tolerated only for very short periods d < 3 Acceptable d > 4 Not acceptable Art. L 3 of the ERP regulation fixes a maximum crowding of 3 persons/m2 for people attending an event in a room without chairs or benches. 3 persons/m2 4 persons/m2 At 3.8 persons/m2 movement ceases From the study “LHC Evacuation Assessment for LS1”, EDMS 1246565 S. La Mendola DGS/SEE

  23. ED – Safety @ Open days 2019 – EDMS 2166516

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