The construction industry is one of the most hazardous industries worldwide, and contact with electricity is a major cause of injury and death among construction workers. It is well known that unsafe acts resulting from human error are the primary cause for up to 80% of accidents across various industries, and some studies show that human performance tools may be functional in mitigating these incidents. Accordingly, this paper provides empirical evidence regarding the effectiveness of human performance tools as used to curb the frequency, probability, and severity of accidents. To achieve its objectives, this study first executed an extensive literature review to identify best practices related to human factors in mitigating the risk of electrical incidents. Then, the authors distributed an online questionnaire among various safety managers to determine the effectiveness of each practice in reducing the frequency, probability and severity of these incidents. The results and analysis show which human performance tools are recognized as most effective in helping safety managers mitigate human errors in electrical jobsites. The results of this study and paper will accelerate and transform current injury-prevention practices as well as overcome some of the barriers in the electrical workplace. An easy-to-use and effective set of human performance best practice solutions will be provided based on standards and industry experience.
more »
« less
Recognizing Seatbelt-Fastening Behavior with Wearable Technology and Machine Learning
Nearly 1.35 million people are killed in automobile accidents every year, and nearly half of all individuals involved in these accidents were not wearing their seatbelt at the time of the crash. This lack of safety precaution occurs in spite of the numerous safety sensors and warning indicators embedded within modern vehicles. This presents a clear need for more effective methods of encouraging consistent seatbelt use. To that end, this work leverages wearable technology and activity recognition techniques to detect when individuals have buckled their seatbelt. To develop such a system, we collected smartwatch data from 26 different users. From this data, we identified trends which inspired the development of novel features. Using these features, we trained models to identify the motion of fastening a seatbelt in real-time. This model serves as the basis for future work in which systems can provide personalized and effective interventions to ensure seatbelt use.
more »
« less
- Award ID(s):
- 1952236
- PAR ID:
- 10294626
- Date Published:
- Journal Name:
- Extended Abstracts of the 2021 CHI Conference on Human Factors in Computing Systems
- Page Range / eLocation ID:
- 1 to 6
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
More Like this
-
-
Risk propensity, or individuals’ attitude toward risk, can highly impact individuals’ decision-making in high-risk environments since those who merely focus on positive consequences associated with high-risk acts are more likely to engage in risk-taking behaviors. Previous studies identified activation in the prefrontal cortex during decision-making under risk to be a sign of an individual’s attitude toward risks. To investigate whether such past work—prevalent in behavioral research domains—translates into construction safety, this study conducted an experiment in a mixed-reality environment using functional near-infrared spectroscopy (fNIRS) technology to examine whether positive risk attitudes cause individuals to adopt risky construction behaviors and whether the activation of the prefrontal cortex of the brain can represent such risk attitudes. The results show that participants with a higher risk propensity had a higher brain activation during the risky electrical tasks; these individuals merely focused on gains, which motivated them to increase their risk-taking behavior and consequently experience more electrical accidents. Understanding workers’ attitudes toward risk will thus influence future understandings of decision behavior under risk.more » « less
-
Process safety is becoming a greater focus of chemical plant design and operation due to the number of incidents involving dangerous chemical accidents. Since its creation nearly 20 years ago, the Chemical Safety Board (CSB) has investigated 130 safety incidents and provided over 800 safety recommendations to operating chemical facilities. Following a gas well blowout in 2018, the CSB gave a recommendation to the American Petroleum Institute (API) to establish recommended practice on alarm management. Similarly, in 2017, the CSB gave a recommendation to Arkema Inc. to update their emergency response training following a hurricane that caused a fire at one of their manufacturing sites. Many times, CSB-led investigations resulted in new regulations and standards that are enforced by the Occupational Safety and Health Administration (OSHA) or the Environmental Protection Agency (EPA). These critical recommendations positively impact not only the plant workers but also the surrounding community and the environment. While these safety measures enhance industrial safety culture, it is important that process safety also be integrated into university-level engineering curricula to promote safety culture while future engineers are still developing. Integrating process safety into the curriculum prepares students by familiarizing them with the difficult decisions they will be required to make in professional practice. ABET, the engineering program accreditation body, acknowledges the value of early, appropriate training within their program guidelines “Criteria for Chemical Engineering Curriculum” which states that recognition and assessment of the hazards associated with chemical processes must be included in the curriculum for program accreditation. Based on this requirement, many institutions have taken the approach to integrate process safety into their curriculum using video case studies, adding entire courses to cover hazard identification, and including safety lectures in design courses. A common theme missing from these methods is instruction on how to approach, recognize, and navigate decisions within a process safety context; a lack of this situational awareness was noted as a key element in industrial process safety incidents. Understanding how students approach process safety decisions is important for developing teaching methods and curriculum that will better prepare them for professional practice. As part of this study, we will measure how students rank criteria associated with process safety decisions, and how these prioritizations change after exposure to a process safety decision making intervention. Through this work, we hope to determine how process safety curriculum may be improved to help better prepare students for process safety decisions within industry.more » « less
-
nd (Ed.)This paper addresses the challenge of ensuring the safety of autonomous vehicles (AVs, also called ego actors) in realworld scenarios where AVs are constantly interacting with other actors. To address this challenge, we introduce iPrism which incorporates a new risk metric – the Safety-Threat Indicator (STI). Inspired by how experienced human drivers proactively mitigate hazardous situations, STI quantifies actor-related risks by measuring the changes in escape routes available to the ego actor. To actively mitigate the risk quantified by STI and avert accidents, iPrism also incorporates a reinforcement learning (RL) algorithm (referred to as the Safety-hazard Mitigation Controller (SMC)) that learns and implements optimal risk mitigation policies. Our evaluation of the success of the SMC is based on over 4800 NHTSA-based safety-critical scenarios. The results show that (i) STI provides up to 4.9× longer lead-time for-mitigating-accidents compared to widely-used safety and planner-centric metrics, (ii) SMC significantly reduces accidents by 37% to 98% compared to a baseline Learning-by-Cheating (LBC) agent, and (iii) in comparison with available state-of-the-art safety hazard mitigation agents, SMC prevents up to 72.7% of accidents that the selected agents are unable to avoid. All code, model weights, and evaluation scenarios and pipelines used in this paper are available at: https://zenodo.org/doi/10.5281/ zenodo.10279653.more » « less
-
Traffic management systems play a vital role in ensuring safe and efficient transportation on roads. However, the use of advanced technologies in traffic management systems has introduced new safety challenges. Therefore, it is important to ensure the safety of these systems to prevent accidents and minimize their impact on road users. In this survey, we provide a comprehensive review of the literature on safety in traffic management systems. Specifically, we discuss the different safety issues that arise in traffic management systems, the current state of research on safety in these systems, and the techniques and methods proposed to ensure the safety of these systems. We also identify the limitations of the existing research and suggest future research directions.more » « less
An official website of the United States government

