Environmental Engineering Reference
In-Depth Information
These.assumptions.are.fairly.straightforward..There.may.be.some.question.about.
the.irst.one..Often,.the.performance.of.others.is.judged.as.illogical,.incomprehen-
sible,.and.sometimes.stupid..When.the.analyst.begins.to.look.at.performance.from.
someone.else's.point.of.view.and.looks.at.it.in.more.depth,.it.is.found.to.be.logical.
and.understandable..The.HBA.helps.to.discover.these.reasons..To.perform.a.human.
barrier.analysis,.the.following.are.needed:
.
1.. A.completed.PBA.matrix
.
2.. Four.HRA.tally.sheets.lettered.A,.B,.C,.and.D
.
3.. A.working.knowledge.of.human.barrier.deinitions
.
4.. Instructions
.
5.. Familiarity.with.the.practices,.procedures,.methods,.and.strategies.of.the.
operation.you.are.analyzing
There.are.ive.major.barriers.to.human.performance..Individuals.do.not.perform.
appropriately.because.of.a.deiciency.in.or.lack.of
.
1.. Information
.
2.. Proper.tools
.
3.. Knowledge
.
4.. Capacity
.
5.. Incentives
To. perform. an. HBA,. look. at. accidents. that. could. have. been. prevented. by. the.
individual.involved..You.may.wish.to.know.if.the.presence.of.one.of.these.barriers.
caused.the.accident..As.in.PBA,.our.experience.with.the.operation.and.our.knowl-
edge.of.the.industry.and.the.operating.procedures.provide.a.basis.for.answering.the.
HBA.questions.in.Table 11.2.
i
nformAtion
When.people.are.not.informed.of.what.is.expected.of.them,.when.they.are.not.told.
how. well. they. are. performing,. or. when. they. are. not. given. any. guidance. or. clear.
direction.on.how.to.accomplish.a.task,.an.information.barrier.is.present..The.lack.of.
consistent,.practical.operating.procedures.or.the.lack.of.feedback.creates.situations.
where.people.respond.based.on.their.own.judgments.of.how.things.should.be.done..
Often,.the.behavior.is.incompatible.with.other.aspects.of.the.operation..To.determine.
if. there. was. an. information. barrier,. the. question. is. asked:. “Was. the. person. given.
direction.and.guidance.on.how.to.do.the.job?”.Direction.and.guidance.are.used.as.
key.words.in.the.question.because.they.cover.both.expected.performance.and.feed-
back.for.performance.
Here. is. an. example. of. an. information. barrier.. An. employee. was. welding. and.
cutting.zinc.and.galvanized.tubing.for.main.fan.installation..The.employee.worked.
2 days.at.this,.and.then.became.sick,.dizzy,.and.sleepy.from.the.fumes..Clearly,.this.
individual.lacked.safety.information.
