Slide 1

Graham Greene

Chairman JAA Occupant Survivability Project Advisory Group

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Anthropometric Research Study

JAA Study Background

Increasing body dimensions (eg 17mm UK male height increase 1981-1995) plus increasing obesity concerns

Longer duration flights Travelling population ageing

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Regulatory impact

Concerns expressed by airlines v concerns expressed by pax

No explicit regulations with the exception of the UK

Regulations need to be based on sound (scientific) advice together with cost-effectiveness studies

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Study Terms of reference

Comfort not an issue – very subjective Seating must be able to safely

accommodate pax Other relevant matters – holistic

approach

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Contract Award

Invitations in European Journal ICE Ergonomics, Loughborough UK

Substantial experience in transport ergonomics

Anthropometric studies background Nottingham University of Medicine

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Study Methodology

Questionnaire – check all issues covered Review of AN64 – only existing standard

dimensions computer models for ergonomics

Safety implications and health One year duration

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Study Report

Questionnaire – brief, 300 pax, long(22hrs) and short haul (4hrs)

Ages up to 76 years, height to 6’6’’ Around 30% ‘experienced problems’ with seat

spacing Confirmed importance of AN64 measurements

and identified other issues

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Study Report

Expert appraisal by 3 ergonomists SAMMIE ergonomics design system

(CAD) – developed over 25 years for seating arrangements

Up-to date anthropometric data

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Conclusions 1

Recommended that (AN64) Dimension A be increased from 26ins (660mm) to at least 28.2ins (711mm) to accommodate 95%ile European seated pax.

Note that a 99%ile European male would need a space of 31.3 inches (795mm)

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Conclusions 2

Substantial list of seating dimensions building on AN64 for consideration eg lower leg/foot space/clearance envelope.

Explore value of ‘flip-up’ seat squabs

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Conclusions 3

Support for comprehensive research on the effects of prolonged seating/ability to move.

Egress trials to validate some recommendations

Full report on JAA website www.jaa.nl

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Way Forward

Results to JAA Cabin Safety Steering Group for regulatory consideration

Formation of a Working Group, Work plan approved by C-JAA

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JAA Working Group

Review spacing recommendations Implications of reduced mobility Accident implications Benefit to European flying population Regulatory impact assessment EASA responsibility

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• Review spacing recommendations

Straightforward in principle – physical dimensions of populations

Judgements – eg. 95 percentile? Value of other spacing definitions

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• Implications of Reduced Mobility

Evacuation implications –very little published work

How important is the issue compared with other evacuation issues?

Pax health

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• Accident Implications

Impact Brace position Upper torso restraint?