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Human Factors, why and how do people misbehave

Human Factors, why and how do people misbehave. Dr Ann Mills Head of Human Factors RSSB. Background. Approximately 6,500 level crossings Vary in terms of design and protection systems Two main categories: Active and Passive Active: Crossing user provided with warning

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Human Factors, why and how do people misbehave

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  1. Human Factors, why and how do people misbehave Dr Ann Mills Head of Human Factors RSSB

  2. Background • Approximately 6,500 level crossings • Vary in terms of design and protection systems • Two main categories: Active and Passive • Active: Crossing user provided with warning • Passive: No warning is given • Misuse, mechanical failure and error have the potential for resulting in crossing users being struck by trains

  3. The UK perspective

  4. 36% of all train accident risk

  5. Exploring human factors

  6. Our approach to understanding human behaviour

  7. Potential Causes of errors and Violations

  8. An example

  9. LX Risk Management toolkit 109Human Factors Issues 73 Mitigation measures 16 Level crossing types 6 user types

  10. Environmental influencing factors • Sign obscured • Crossing instructions missing or unclear • Gate or barrier left open by previous user • Conspicuity of flashing lights • AHB – zig zagging behaviour

  11. Behavioural influencing factors • User believes he/she has enough time to beat the train • User misjudges his/her speed and distance • Time pressure • Frustration at long waiting times • Complacency • Comprehension of signs

  12. Sign comprehension 73% associated this with a level crossing 17% expected to see a barrier 60% associated this with a level crossing 38% expected to see a barrier

  13. Behavioural influencing factors • User believes he/she has enough time to beat the train • User misjudges his/her speed and distance • Time pressure • Frustration at long waiting times • Complacency • Comprehension of signs • Failing to understand crossing instructions apply specifically to them • User has low perception of risk

  14. Education – a role to play? Education identified as potential mitigation measure for 80% HF issues

  15. Conclusions • Errors and violations need equal consideration • Significant number of HF issues lead to inappropriate user behaviour • Discussed Just 13 of 109 identified • Significance will depend on crossing and user type • Mitigations need to be appropriate to context and level of risk • Education has important part to play www.lxrmtk.com

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