Related Experiment Video
Updated: Aug 6, 2026
13:48
Design and Construction of an Urban Runoff Research Facility
Published on: August 8, 2014
Participatory work design for a new selective collection facility
Vitor Rodrigues1, Raoni Rocha1
1Department of Production Engineering, Administration, and Economics, Universidade Federal de Ouro Preto, Ouro Preto, Brazil.
Ergonomics
|July 22, 2026
Summary
Participatory ergonomics interventions using intermediary objects improved workplace safety for recyclable material collectors during a rapid relocation. This action research highlights adaptable methods for transforming work in constrained environments.
Area of Science:
- Occupational health and safety
- Ergonomics
- Social sciences
Background:
- Rapid relocation of informal workforces presents unique challenges for implementing workplace interventions.
- Participatory ergonomics is crucial for improving safety and efficiency in dynamic work environments.
Purpose of the Study:
- To investigate the use of intermediary objects in participatory ergonomics during an urgent relocation of recyclable material collectors.
- To examine the methodological role of these objects in facilitating interaction and adaptation.
- To assess the impact of the intervention on workplace safety and workflows.
Main Methods:
- Action research methodology was employed to address the relocation challenges.
- Intermediary objects were utilized as tools to facilitate participatory ergonomic assessments and interventions.
- The study focused on collaboration with the Association of Recyclable Material Collectors in Brazil.
Main Results:
- The use of intermediary objects, varying in complexity, effectively supported interaction processes.
- Intervention led to strategic changes in equipment placement and workflow redesign.
- Significant improvements in workplace safety were observed post-intervention.
Conclusions:
- Work transformation and methodological development can be achieved concurrently even in resource-constrained settings.
- The findings offer transferable insights for implementing similar ergonomic interventions in informal and urgent contexts.
- The study underscores the value of adaptable tools in participatory ergonomics.
Related Concept Videos
01:26Design Example: Sustainability in Concrete Building
As the construction industry moves towards more eco-friendly practices, concrete's adaptability and its ability to incorporate sustainable features make it a key material in the drive towards greener building solutions.
There are multiple approaches to achieve sustainability in a commercial concrete building. For instance, construct a concrete parking area under the building, utilizing pervious concrete paver blocks in open areas to facilitate rainwater collection through an underground cistern.
There are multiple approaches to achieve sustainability in a commercial concrete building. For instance, construct a concrete parking area under the building, utilizing pervious concrete paver blocks in open areas to facilitate rainwater collection through an underground cistern.
01:24Design Example: Aggregate Gradation
The right type and quality of aggregates are crucial for concrete as they significantly influence its properties, mix proportions, and cost-effectiveness. If different sources are available for sand, the commonly used fine aggregate in concrete, the selection of sand is primarily based on its gradation.
The grading, or particle-size distribution, of sand is determined using sieve analysis, with standard sizes ranging from 150 μm to 10 mm (ASTM No. 100 sieve to 3⁄8 in. sieve). Sand is sampled...
The grading, or particle-size distribution, of sand is determined using sieve analysis, with standard sizes ranging from 150 μm to 10 mm (ASTM No. 100 sieve to 3⁄8 in. sieve). Sand is sampled...
01:14Design Example: Managing Concrete Workability
This example deals with managing the workability of concrete for a raft foundation project under hot weather conditions. Workability is crucial for ensuring the concrete is easy to place, compact, and finish. In this scenario, a slump test — a common method to measure the workability of fresh concrete — initially indicated low workability. This was attributed to the rapid water loss from the concrete mix, exacerbated by the high temperatures causing the course aggregates to heat up.
To address...
To address...