Core users who lift, carry, twist, and work inside tight holds under time and weather pressure; they embody the ergonomic problem and are the first-order recipients of harm or benefit.

Coordinate sequencing, enforce procedures, and set the practical pace/spacing that determines posture quality and micro-breaks; high leverage over safe technique adoption.

Share space/time windows on the ramp; their arrival/departure sequencing drives peak load, congestion, and rushing that raises musculoskeletal risk.

Set turnaround tempo and baggage flow; influence workload spikes, recovery time, and communication that mitigates or amplifies strain.

Own safety and on-time KPIs; decide staffing, training intensity, and investment in lift-assist/exoskeletons and analytics — critical for scale-up and sustained adoption.

Controls ramp access, infrastructure, and site rules; can enable or constrain ergonomic equipment use, safe zones, and workflow improvements.

Define baggage weight limits, training/ergonomics standards, and reporting; compliance pressure raises influence over solution design and rollout.

Indirect beneficiaries whose expectations for timely, damage-free baggage shape reputation and economic incentives for safer, smoother operations.

Treat WMSDs and provide rehab feedback; their injury data and guidance inform prevention targets (posture, repetition, torque) for product requirements.

Handle claims and total cost of injury; can create incentives or requirements for ergonomic interventions and track ROI at scale.