Environmental Engineering Reference
In-Depth Information
tABle 11.2
human Barrier Analysis (hBA) questions
•. What.barriers.existed.between.the.second,.third,.etc..condition/situation.and.the.second,.third,.etc..
problems?
•. If.there.were.barriers,.did.they.perform.their.functions?.Why?
•. Did.the.presence.of.any.barriers.mitigate.or.increase.the.occurrence.severity?.Why?
•. Were.any.barriers.not.functioning.as.designed?.Why?
•. Was.the.barrier.design.adequate?.Why?
•. Were.there.any.barriers.in.the.condition/situation.source(s)?.Did.they.fail?.Why?
•. Were.there.any.barriers.on.the.affected.component(s)?.Did.they.fail?.Why?
•. Were.the.barriers.adequately.maintained?
•. Were.the.barriers.inspected.prior.to.expected.use?
•. Why.were.any.unwanted.energies.present?
•. Is.the.affected.system/component.designed.to.withstand.the.condition/situation.without.the.
barriers?.Why?
•. What.design.changes.could.have.prevented.the.unwanted.low.of.energy?.Why?
•. What.operating.changes.could.have.prevented.the.unwanted.low.of.energy?.Why?
•. What.maintenance.changes.could.have.prevented.the.unwanted.low.of.energy?.Why?
•. Could.the.unwanted.energy.have.been.delected.or.evaded?.Why?
•. To.what.other.controls.are.the.barriers.subjected?.Why?
•. Was.this.event.foreseen.by.the.designers,.operators,.maintainers,.or.anyone?
•. Is.it.possible.to.have.foreseen.the.occurrence?.Why?
•. Is.it.practical.to.have.taken.further.steps.to.reduce.the.risk.of.the.occurrence?
•. Can.this.reasoning.be.extended.to.other.similar.systems/components?
•. Were.adequate.human.factors.considered.in.the.design.of.the.equipment?
•. What.additional.human.factors.could.be.added?.Should.be.added?
•. Is.the.system/component.user.friendly?
•. Is.the.system/component.adequately.labeled.for.ease.of.operation?
•. Is.there.suficient.technical.information.for.operating.the.component.properly?.How.do.you.know?
•. Is.there.suficient.technical.information.for.maintaining.the.component.properly?.How.do.you.know?
•. Did.the.environment.mitigate.or.increase.the.severity.of.the.occurrence?.Why?
•. What.changes.were.made.to.the.system/component.immediately.after.the.occurrence?
•. What.changes.are.planned.to.be.made?.What.might.be.made?
•. Have.these.changes.been.properly,.adequately.analyzed.for.effect?
•. What.related.changes.to.operations.and.maintenance.have.to.be.made.now?
•. Are.expected.changes.cost.effective?.Why?.How.do.you.know?
•. What.would.you.have.done.differently.to.prevent.the.occurrence,.disregarding.all.economic.
considerations.(as.regards.operation,.maintenance,.and.design)?
•. What.would.you.have.done.differently.to.prevent.the.occurrence,.considering.all.economic.
concerns.(as.regards.operation,.maintenance,.and.design)?
 
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