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Factors Affecting Material-Cart Handling in the Roofing Industry: Evidence for Administrative Controls

Zhang, Zhenyu; Lin, Ken-yu; Lin, Jia-hua. (2021). Factors Affecting Material-Cart Handling in the Roofing Industry: Evidence for Administrative Controls. International Journal Of Environmental Research And Public Health, 18(4).

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Abstract

Material-cart handling can be strenuous and lead to overexertion injuries. The aim of this study is to produce a thorough understanding of how the cart condition, tire type, physical environment-related factors, and load interact to influence the ergonomics and productivity of cart handling. Eighteen roofing carts with different conditions, tires, and loads were tested by one subject on three laboratory tracks: one L-shaped, one with ramps within constrained spaces, and one with obstacles within constrained spaces. A multiple linear regression analysis was performed to quantify the main and interaction effects of the factors of interest on the cart operations. The research findings confirm that using aged carts increases the injury risk by as much as 30.5% and decreases productivity by 35.4%. Our study also highlights the necessity of keeping an open space for cart operation; the travel distance from a cart to a ramp/obstacle should be greater than 61 cm. Finally, the results suggest the at-risk thresholds for different ramp slopes and obstacle heights, and the safe load capacities for the various working circumstances that are common on construction sites. The evidence created in this study can be translated into administrative controls for cart handling to reduce overexertion injuries and enhance performance.

Keywords

Overexertion In Pulling And Pushing; Material Cart Handling; Roof Construction; Ergonomic Risk Factors; Administrative Control

Cybersecurity in the Built Environment (Cyber-BE)

The Cyber-BE Lab integrates the latest in academic research on policy, communication, and organization with industry expertise on IoT security, risk mitigation and building operations. Cyber-BE offers a holistic understanding of IoT in the built environment. We support the organizational, communication, and policy innovations that will help minimize IoT risk through:

  • Advancing social scientific research to better understand and apply smart technology in the built environment
  • Delivering usable guidance and tools to address the policy, organizational, and communication challenges that industry practitioners face
  • Building a community of practice of IoT security practitioners and researchers

The lab leads include Laura Osburn, Senior Research Scientist at the Department of Construction Management, Jessica Beyer, Lecturer and Research Scientist at the Jackson School of International Studies, and Chuck Benson, Director of IoT Risk Mitigation Strategy at the University of Washington.

Qing Shen’s proposal among those selected for funding by PacTrans

The Pacific Northwest Transportation Consortium (PacTrans) announced in January 2021 the project proposals selected for funding. Qing Shen, Professor of Urban Design and Planning and Chair of the Interdisciplinary PhD Program in Urban Design and Planning is among those selected for project funding. Shen is working alongside Co-Principal Investigator Catherine (Casey) Gifford–Innovative Mobility Senior Planner–on the applied research project titled “Supplementing fixed-route transit with dynamic shared mobility services: a marginal cost comparison approach”. The project goal is to address a…

Sensol Systems to participate in the National Science Foundation (NSF) I-Corps program

Sensol Systems, a startup founded in 2020 by Janie Bube–a recent UW Masters of Landscape Architecture graduate–along with other students at University of Washington, was recently awarded a National Science Foundation (NSF) award to participate in the I-Corps program. This NSF program uses experiential education to help researchers gain valuable insight into entrepreneurship, starting a business or industry requirements and challenges. The curriculum integrates scientific inquiry and industrial discovery in an inclusive, data-driven culture driven by rigor, relevance, and evidence….

Carbon Leadership Forum among Finalists Selected for $10 Million 2030 Climate Challenge

On February 9, Lever for Change announced that the College of Built Environment’s Carbon Leadership Forum (CLF) and four other finalist teams will advance to the next stage of the 2030 Climate Challenge, a $10 million award launched last year to reduce greenhouse gas emissions in the U.S. by 2030. The Challenge, sponsored by an anonymous donor, will fund proven, data-driven solutions tackling greenhouse gas emissions in the buildings, industry, and/or transportation sectors in communities across the country. Sixty-eight proposals…

Chelle Tobey

Urban systems, system complexity, big data, artificial intelligence, smart cities, communities, and coupled human-built-environmental systems

Siman Ning

Climate change, smart cities, urban economics and the interaction between human behavior and built environment

PhD in the Built Environment

The College of Built Environments consists of five departments that together provide one of the country’s few comprehensive built environment programs within one academic unit: Architecture, Construction Management, Landscape Architecture, Real Estate, and Urban Design and Planning. Together, this combination of departments enable faculty and students to engage almost the entire development process, from economic and environmental planning, real estate, regulatory processes, siting and design, through actual financing and construction, to facility management and adaptive reuse in subsequent stages. Thus, the college is inherently multi-disciplinary, not only in terms of the dimensions of reality that it treats, but also in regard to the specialized disciplines, methods, and practices that it employs: history, theory, cultural criticism, engineering, design, planning, urban design, energy sciences, acoustics, lighting, environmental psychology, ecology, real estate analysis, statistics, management, horticulture, soil science, law, public policy, and ethics. In addition, because of the College’s focus on comprehensive analysis and practice concerning the built environment and its interrelation with society, it is substantially engaged in interdisciplinary work with other units on campus and outside of the campus, including mechanical, civil, and electrical engineering; with public policy and the health sciences; with art and art history; with textual interpretation in the humanities; with many of the computing and digitization activities that range from digital arts to the information school and technical communications; with education and social studies and services; with sustainability and ecological programs, including urban ecology, geography, the College of Forest Resources (especially urban horticulture and urban forestry), and Ocean Science and Fisheries; with environmental and land use law.

The College’s interdisciplinary character is a good fit with the emerging trends in today’s complex world, where only a pluralistic and collaborative approach will generate the necessary learning and teaching, research, and service. If we are to provide, in the end, both disciplinary and professional means to promote environmental well-being, the diverse environmental specializations must be fully integrated. Thus, working outside traditional disciplinary and departmental categories, the College’s faculty will advance solutions to problems that demand interdisciplinary perspectives and expertise. Other UW units bring much to bear on the built environment and students are wholeheartedly encouraged to explore possible cross-campus connections both in obvious and seemingly unlikely places. The Technology and Project Design/Delivery specialization especially connects with Psychology, the Information School, Technical Communication, Computer Science and Engineering, and Industrial Engineering; the Sustainable Systems and Prototypes field with Civil Engineering, Electrical Engineering, Industrial Engineering, Mechanical Engineering, the Information School, Technical Communication, the College of Forest Resources (especially Eco-System Science and Conservation, Urban Horticulture and Urban Forestry), the Evans School of Public Affairs, Geography, Public Health, Ocean Science and Fisheries, and Social Work, Urban Ecology, and perhaps Advanced Materials and Manufacturing Processes and Nanotechnology; the area of History, Theory, and Representation with Textual Studies, Art History, Interdisciplinary Arts & Sciences at Tacoma, and Comparative History of Ideas.

CBE Office of Research Updates

On September 5, Dean Renée Cheng shared exciting updates about the College of Built Environments’ Office of Research. Read below for more from Dean Cheng:  The College of Built Environments’ newly revamped Office of Research aims to elevate CBE research expertise in community engagement, climate action, housing, humanities, and  technology and to increase capacity for meeting urgent needs for this research to be accessible and have impact. While there is much work to be done, I believe the steps outlined…

Urban@UW

Urban@UW extends the understanding of cities—from people, buildings, infrastructure, and energy to economics, policy, culture, art, and nature—beyond individual topics to dynamically interdependent systems so that we can holistically design and steward vibrant and welcoming cities in which future generations will thrive.

A partnership between the Office of Research and the College of Built Environments, and engaging colleges, schools, and departments across all three of University of Washington’s campuses, Urban@UW amplifies UW as a leading university in urban issues. Together, we catalyze the evolution of Seattle as a model city—a boundary-pushing laboratory and knowledge hub that leverages innovation to create a place of opportunity and health for all—and build new ideas that can be used in metropolitan regions around the globe. Urban@UW leverages deep understanding, leading-edge analysis, and an ethos of partnership to create the pathway for Seattle as the city of the future.

Urban@UW works with scholars, policymakers, and community stakeholders to develop cross-disciplinary and cross-sector collaborative research. We aim to strengthen connections between research and solutions to today’s urban challenges. We do this through intellectual partnership, drawing upon the many scholars and centers on campus to cultivate new, path-breaking ideas, projects, and research-practice collaborations.

Urban@UW is a large network of scholars and practitioners with leaders and supporters engaging in different projects and initiatives across all three campuses. Supported by the Office of Research and the College of Built Environments as well as external grants and partnerships, the Urban@UW institution-wide community includes our Executive Committee, Urban@UW Fellows, and Urban@UW Affiliates.