Related Experiment Video
Updated: May 5, 2026
10:52
Simulation of Human-induced Vibrations Based on the Characterized In-field Pedestrian Behavior
Published on: April 13, 2016
8.1K
A system dynamics approach for modeling construction workers' safety attitudes and behaviors
Mingyu Shin1, Hyun-Soo Lee1, Moonseo Park1
1Department of Architecture, Seoul National University, Seoul, Republic of Korea.
Accident; Analysis and Prevention
|November 26, 2013
Summary
This study introduces a system dynamics (SD) model to understand construction workers' unsafe acts. The model helps analyze safety attitudes and behaviors, aiding in the development of effective safety programs.
Area of Science:
- Occupational Safety and Health
- Systems Engineering
- Behavioral Psychology
Background:
- Construction accidents stem from unsafe acts and conditions.
- Despite environmental improvements, worker unsafe acts remain a concern.
- Understanding the dynamics of unsafe acts is crucial for enhanced safety.
Purpose of the Study:
- To develop a system dynamics (SD) model of construction workers' mental processes.
- To analyze feedback mechanisms influencing safety attitudes and behaviors.
- To evaluate the effectiveness of safety improvement policies.
Main Methods:
- Development of a system dynamics (SD) model.
- Simulation of worker mental processes and safety behaviors.
- Application of the model to test safety intervention policies.
Main Results:
- The SD model effectively analyzes feedback loops affecting safety.
- The model demonstrates potential in understanding and mitigating unsafe acts.
- Simulations showed varying impacts of different safety policies.
Conclusions:
- The developed system dynamics model offers a robust platform for safety research.
- It can predict the outcomes of safety interventions before implementation.
- This approach enhances the understanding and elimination of unsafe acts in construction.
More Related Videos
Related Concept Videos
01:28Survey Safety
525
Surveying near highways, rough terrain, or power lines involves significant risks. Working along highways is particularly dangerous and requires the use of warning signs and flagmen. It is safest to avoid working directly on roads and use offsets whenever possible. When highway work is unavoidable, it must follow all safety guidelines. Surveyors should wear bright clothing, such as orange reflective vests, to ensure visibility to motorists, coworkers, and hunters. In construction zones, wearing...
525
01:27Levels of Communication II: Organizational, Public, and Group Dynamics
3.0K
Effective communication is the foundation of a good organization. Communication is the lifeblood of an organization that connects the group with messages. In an organization, communication occurs in upward, downward, and horizontal lines. Downward communication travels from the administrative and senior levels to the staff through official channels such as manuals, rules and regulations, and organizational charts. Staff members initiate upward communication, which is addressed to executives and...
3.0K
01:25Modeling with Differential Equations
336
Population dynamics can be described mathematically by considering the population size P(t) as a function of time. The rate of change of the population is then represented by the derivative of P(t). A simple assumption is that the rate of growth is proportional to the size of the population itself. This leads to an exponential growth model, where the population increases rapidly without bound. While this is a useful first approximation, it does not reflect realistic long-term...
336
01:23Mechanistic Models: Compartment Models in Individual and Population Analysis
360
Mechanistic models are utilized in individual analysis using single-source data, but imperfections arise due to data collection errors, preventing perfect prediction of observed data. The mathematical equation involves known values (Xi), observed concentrations (Ci), measurement errors (εi), model parameters (ϕj), and the related function (ƒi) for i number of values. Different least-squares metrics quantify differences between predicted and observed values. The ordinary least...
360
01:25Models of Health Promotion and Illness Prevention I
2.8K
A model is a theoretical way to understand a concept or an idea. Models can overcome barriers to health regardless of diverse economic and cultural backgrounds. In addition, models make the task easier by providing different ways to approach complex issues. There are two major health promotion models: the health belief model and the health promotion model.
The health belief model (HBM) attempts to predict health-related behavior in specific belief patterns. According to the HBM, a person's...
The health belief model (HBM) attempts to predict health-related behavior in specific belief patterns. According to the HBM, a person's...
2.8K
01:22Design Consideration
681
Designing a structure involves a series of considerations, primarily the material's ultimate strength, calculated through tests that measure changes under increased force until the material reaches its breaking point or limit. The ultimate load, where the material breaks, is divided by its original cross-sectional area, resulting in the ultimate normal stress or strength. The ultimate shearing stress is another significant factor taken into account.
The factor of safety is another key...
The factor of safety is another key...
681