opening presentation
TRANSCRIPT
Human Factors
Practical, risk-based application:– Focus on safety-critical tasks;– Evidence-based;– Apply cost / benefit analysis with ALARP goal;– Support safe operability & maintainability by effective design.
Human Performance
People
Work
Work OrganizationEquipment
Environment
People: characteristics, capabilities, expectations, limitations, experiences and needs of people who will operate, maintain, support and use the facilities;
Work: the nature of the work involved in operating, maintaining, and supporting the facility;
Work Organization: How the people are organised, in terms of, for example, team structures, responsibilities, working hours and shift schedules;
Equipment: The equipment and technology used, including layout & elements that humans need to interact with, both physically and mentally;
Environment: The work environment in which people are expected to work, including the climate, lighting, noise, vibration and exposure to other health hazards.
Nutshell Definitions
• “Does the design support the tasks”
• “Can this person, with these tools and
equipment, safely perform this task in
this time period under these conditions”
• “Operability and Maintainability”
Drain Line Trip Hazard in Egress Route; As-built HF assurance visit $12k.
Extra engineering effort, deck penetration and piping cost: $120k+.
Insulated tank sucked in –vent valve inaccessible. HF in HAZOP cost: $3k
Cost of new tank: $300k+
Blocked access to exchanger for material handling. As-built HF assurance visit $12k.
Remove structural beam and reengineer onshore; $250k+. Much greater cost offshore.
Poor valve access. Cost of extra platform during construction: $10k.
Injury and retrofitting costs $40k.
Lessons Learned
Planned ActivitiesConduct Means of
Access Study
Assess Platforms, Stairs, Ladders and Guardrails
Review Vendor Skid Packages
Run Means of Access Workshop
Conduct Valve Criticality Analysis Workshop
Conduct Human Factors Analysis
Review electrical buildings to verify HMI design•Access arrangements
•Emergency egress
Review control rooms and living quarters to verify HMI design•Control room layout
•Alarms
Review Crane Cabin and Local Control Panel Design
Further contribute to Facility Team and Project
Team
Contribute to Facility Safety Case
Provide HFE (WE) Training and Ad-hoc support
Produce HFE (WE) Design Aids
Develop Requirements for Labeling, Signs and Pipe Markings
Contribute to Technical Safety Studies
Facilitate Chemical
Health Risk Assessment / COSHH Study
Identifying chemicals and compiling a list of MSDS
Identifying those chemicals with inherent health risks
Facilitate COSHH workshop
Manage Noise & Vibration
Study
Assist subcontractor with data collection
Review contractor deliverables
Conduct Means of
Access Study
Assess Platforms, Stairs, Ladders and Guardrails
Review Vendor Skid Packages
Run Means of Access Workshop
Conduct Valve Criticality Analysis Workshop
Conduct Human Factors Analysis
Review electrical buildings to verify HMI design•Access arrangements
•Emergency egress
Review control rooms and living quarters to verify HMI design•Control room layout
•Alarms
Review Crane Cabin and Local Control Panel Design
Further contribute to Facility Team and Project
Team
Contribute to Facility Safety Case
Provide HFE (WE) Training and Ad-hoc support
Produce HFE (WE) Design Aids
Develop Requirements for Labeling, Signs and Pipe Markings
Contribute to Technical Safety Studies
Facilitate Chemical
Health Risk Assessment / COSHH Study
Identifying chemicals and compiling a list of MSDS
Identifying those chemicals with inherent health risks
Facilitate COSHH workshop
Manage Noise & Vibration
Study
Assist subcontractor with data collection
Review contractor deliverables
Conduct Means of
Access Study
Assess Platforms, Stairs, Ladders and Guardrails
Review Vendor Skid Packages
Run Means of Access Workshop
Conduct Valve Criticality Analysis Workshop
Conduct Human Factors Analysis
Review electrical buildings to verify HMI design•Access arrangements
•Emergency egress
Review control rooms and living quarters to verify HMI design•Control room layout
•Alarms
Review Crane Cabin and Local Control Panel Design
Further contribute to Facility Team and Project
Team
Contribute to Facility Safety Case
Provide HFE (WE) Training and Ad-hoc support
Produce HFE (WE) Design Aids
Develop Requirements for Labeling, Signs and Pipe Markings
Contribute to Technical Safety Studies
Facilitate Chemical
Health Risk Assessment / COSHH Study
Identifying chemicals and compiling a list of MSDS
Identifying those chemicals with inherent health risks
Facilitate COSHH workshop
Manage Noise & Vibration
Study
Assist subcontractor with data collection
Review contractor deliverables
Review Vendor Skid PackagesProvide stair as main access
Provide self-closing gate at top of ladder
Apply valve guidelines (height, cracking force,
wheel design)
Provide side-entry ladder for emergency egress
Sufficient horizontal & vertical clearances
Conduct Valve Criticality Analysis• Prioritize, e.g.:
– Category 1: Critical for safety or operations / used frequently;– Category 2: Required for routine operation and maintenance.– Category 3: Not critical for operations or routine maintenance; rarely used.
• Specify accordingly:– Actuated / manual / motorized– Correct height & orientation – Cracking force & turns
– Knurling of wheels– Not blocked– Reference displays
BlockedToo High Hard to access3D Model Construction
Produce HFE (WE) Design Aids• Go-to documents summarizing main requirements (“Cheat sheet”)• Complement standard design detail drawings• 5 currently proposed:
– Enclosed packages– Labeling, signs and markings– Material Handling– Stairs, Guardrails, Ladders and Platforms– Valves, strainers and instruments.
Valve Positioning LabelsSafety Signs
Questions?