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Logistical and ergonomic transportation capacity for refuse collection workers: a work physiology field study
A Luttmann1, W Laurig, M Jäger
1Institut für Arbeitsphysiologie, Universität Dortmund, Abteilung Ergonomie, Germany.
Ergonomics
|September 1, 1992
Summary
Refuse collection workers experience high work rates, necessitating regular breaks for recovery. A minimum of 10 minutes of rest per hour is recommended to ensure worker health and safety.
Area of Science:
- Work physiology
- Occupational health
- Ergonomics
Background:
- Refuse collection is physically demanding, involving manual handling of large containers.
- Previous research has not fully quantified the physiological strain and recovery needs of refuse workers.
Purpose of the Study:
- To assess the physiological workload of refuse collection workers.
- To determine optimal work-rest schedules and develop a model for transportation capacity.
Main Methods:
- Field study recording electrocardiograms and work flow for six male refuse workers.
- Analysis of work rate (WR) and work pulse rate (WPR) using linear regression.
- Development of a transportation-capacity model considering logistical and ergonomic factors.
Main Results:
- A linear relationship was found between work rate and work pulse rate (WPR = 20.9 + 35.8.WR).
- High work pulse rates indicate that continuous work is unsustainable throughout the shift.
- A minimum of 10 minutes of recovery break per working hour is calculated as necessary.
- Ergonomic transportation capacity (TCE) is estimated at 140-160 containers per shift for a three-man crew.
Conclusions:
- Regular, extended breaks are crucial for refuse workers' health.
- The proposed transportation-capacity model aids in planning work schedules that prioritize worker well-being.
- Adhering to ergonomic transportation capacity prevents overexertion and promotes long-term health.