Article: Use of JACK modelling software to quantify the reachability of ISO 6682 Journal: International Journal of Human Factors Modelling and Simulation (IJHFMS) 2024 Vol.8 No.5 pp.1 - 20 Abstract: For decades, human factor experts have pushed for the redesign of mining machine cabs to improve operator sightlines and ergonomics. Current cab design does not accommodate a full range of operator sizes, causing many workers to adopt non-neutral postures, which can increase their risk for musculoskeletal injury. This work examined the reachability of the zone of comfort (ZoC) for hand control locations in JACK software as defined for a range of operators. Once reach envelopes were overlaid onto the cabs for a variety of sized operators, no condition existed where an operator could reach 100% of the ZoC for hand controls. The best reachability was achieved by the largest operator, while the 5th percentile Latino female can fully reach only 29.7% of controls without using flexion. This work is the first to examine the validity of ISO 6682 from an equity, diversity, and inclusion perspective. Inderscience Publishers - linking academia, business and industry through research

Title: Use of JACK modelling software to quantify the reachability of ISO 6682

Authors: Sara Perfetto; Katie Goggins; Melanie Cloutier; Alison Godwin

Addresses: Centre for Research in Occupational Safety and Health, Laurentian University, 935 Ramsey Lake Road, Sudbury, ON, P3E 2C6, Canada ' Centre for Research in Occupational Safety and Health, Laurentian University, 935 Ramsey Lake Road, Sudbury, ON, P3E 2C6, Canada ' Centre for Research in Occupational Safety and Health, Laurentian University, 935 Ramsey Lake Road, Sudbury, ON, P3E 2C6, Canada ' School of Kinesiology and Health Sciences, Laurentian University, 935 Ramsey Lake Road, Sudbury, ON, P3E 2C6, Canada

Abstract: For decades, human factor experts have pushed for the redesign of mining machine cabs to improve operator sightlines and ergonomics. Current cab design does not accommodate a full range of operator sizes, causing many workers to adopt non-neutral postures, which can increase their risk for musculoskeletal injury. This work examined the reachability of the zone of comfort (ZoC) for hand control locations in JACK software as defined for a range of operators. Once reach envelopes were overlaid onto the cabs for a variety of sized operators, no condition existed where an operator could reach 100% of the ZoC for hand controls. The best reachability was achieved by the largest operator, while the 5th percentile Latino female can fully reach only 29.7% of controls without using flexion. This work is the first to examine the validity of ISO 6682 from an equity, diversity, and inclusion perspective.

Keywords: equity; diversity; inclusion; classic JACK modelling; anthropometric mismatch; reachability; reach envelope; International Organization for Standardization; ISO; mining cab design; mining industry; ISO 6682; zone of comfort; ZoC.

DOI: 10.1504/IJHFMS.2024.143775

International Journal of Human Factors Modelling and Simulation, 2024 Vol.8 No.5, pp.1 - 20

Received: 04 Jun 2024
Accepted: 28 Aug 2024
Published online: 06 Jan 2025 *

Title: Use of JACK modelling software to quantify the reachability of ISO 6682

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