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Research Product Types: Journal Article

peer-reviewed article in academic journal

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

Global Urban Environmental Change Drives Adaptation in White Clover

Santangelo, James S.; Ness, Rob W.; Cohan, Beata; Fitzpatrick, Connor R.; Innes, Simon G.; Koch, Sophie; Miles, Lindsay S.; Munim, Samreen; Peres-neto, Pedro R.; Prashad, Cindy; Tong, Alex T.; Aguirre, Windsor E.; Akinwole, Philips O.; Alberti, Marina; Alvarez, Jackie; Anderson, Jill T.; Anderson, Joseph J.; Ando, Yoshino; Andrew, Nigel R.; Angeoletto, Fabio; Anstett, Daniel N.; Anstett, Julia; Aoki-goncalves, Felipe; Arietta, A. Z. Andis; Arroyo, Mary T. K.; Austen, Emily J.; Baena-diaz, Fernanda; Barker, Cory A.; Baylis, Howard A.; Beliz, Julia M.; Benitez-mora, Alfonso; Bickford, David; Biedebach, Gabriela; Blackburn, Gwylim S.; Boehm, Mannfred M. A.; Bonser, Stephen P.; Bonte, Dries; Bragger, Jesse R.; Branquinho, Cristina; Brans, Kristien, I; Bresciano, Jorge C.; Brom, Peta D.; Bucharova, Anna; Burt, Briana; Cahill, James F.; Campbell, Katelyn D.; Carlen, Elizabeth J.; Carmona, Diego; Castellanos, Maria Clara; Centenaro, Giada; Chalen, Izan; Chaves, Jaime A.; Chavez-pesqueira, Mariana; Chen, Xiao-yong; Chilton, Angela M.; Chomiak, Kristina M.; Cisneros-heredia, Diego F.; Cisse, Ibrahim K.; Classen, Aimee T.; Comerford, Mattheau S.; Fradinger, Camila Cordoba; Corney, Hannah; Crawford, Andrew J.; Crawford, Kerri M.; Dahirel, Maxime; David, Santiago; De Haan, Robert; Deacon, Nicholas J.; Dean, Clare; Del-val, Ek; Deligiannis, Eleftherios K.; Denney, Derek; Dettlaff, Margarete A.; Dileo, Michelle F.; Ding, Yuan-yuan; Dominguez-lopez, Moises E.; Dominoni, Davide M.; Draud, Savannah L.; Dyson, Karen; Ellers, Jacintha; Espinosa, Carlos, I; Essi, Liliana; Falahati-anbaran, Mohsen; Falcao, Jessica C. F.; Fargo, Hayden T.; Fellowes, Mark D. E.; Fitzpatrick, Raina M.; Flaherty, Leah E.; Flood, Padraic J.; Flores, Maria F.; Fornoni, Juan; Foster, Amy G.; Frost, Christopher J.; Fuentes, Tracy L.; Fulkerson, Justin R.; Gagnon, Edeline; Garbsch, Frauke; Garroway, Colin J.; Gerstein, Aleeza C.; Giasson, Mischa M.; Girdler, E. Binney; Gkelis, Spyros; Godsoe, William; Golemiec, Anneke M.; Golemiec, Mireille; Gonzalez-lagos, Cesar; Gorton, Amanda J.; Gotanda, Kiyoko M.; Granath, Gustaf; Greiner, Stephan; Griffiths, Joanna S.; Grilo, Filipa; Gundel, Pedro E.; Hamilton, Benjamin; Hardin, Joyce M.; He, Tianhua; Heard, Stephen B.; Henriques, Andre F.; Hernandez-poveda, Melissa; Hetherington-rauth, Molly C.; Hill, Sarah J.; Hochuli, Dieter F.; Hodgins, Kathryn A.; Hood, Glen R.; Hopkins, Gareth R.; Hovanes, Katherine A.; Howard, Ava R.; Hubbard, Sierra C.; Ibarra-cerdena, Carlos N.; Iniguez-armijos, Carlos; Jara-arancio, Paola; Jarrett, Benjamin J. M.; Jeannot, Manon; Jimenez-lobato, Vania; Johnson, Mae; Johnson, Oscar; Johnson, Philip P.; Johnson, Reagan; Josephson, Matthew P.; Jung, Meen Chel; Just, Michael G.; Kahilainen, Aapo; Kailing, Otto S.; Karinho-betancourt, Eunice; Karousou, Regina; Kirn, Lauren A.; Kirschbaum, Anna; Laine, Anna-liisa; Lamontagne, Jalene M.; Lampei, Christian; Lara, Carlos; Larson, Erica L.; Lazaro-lobo, Adrian; Le, Jennifer H.; Leandro, Deleon S.; Lee, Christopher; Lei, Yunting; Leon, Carolina A.; Tamara, Manuel E. Lequerica; Levesque, Danica C.; Liao, Wan-jin; Ljubotina, Megan; Locke, Hannah; Lockett, Martin T.; Longo, Tiffany C.; Lundholm, Jeremy T.; Macgillavry, Thomas; Mackin, Christopher R.; Mahmoud, Alex R.; Manju, Isaac A.; Marien, Janine; Martinez, D. Nayeli; Martinez-bartolome, Marina; Meineke, Emily K.; Mendoza-arroyo, Wendy; Merritt, Thomas J. S.; Merritt, Lila Elizabeth L.; Migiani, Giuditta; Minor, Emily S.; Mitchell, Nora; Bazargani, Mitra Mohammadi; Moles, Angela T.; Monk, Julia D.; Moore, Christopher M.; Morales-morales, Paula A.; Moyers, Brook T.; Munoz-rojas, Miriam; Munshi-south, Jason; Murphy, Shannon M.; Murua, Maureen M.; Neila, Melisa; Nikolaidis, Ourania; Njunji, Iva; Nosko, Peter; Nunez-farfan, Juan; Ohgushi, Takayuki; Olsen, Kenneth M.; Opedal, Oystein H.; Ornelas, Cristina; Parachnowitsch, Amy L.; Paratore, Aaron S.; Parody-merino, Angela M.; Paule, Juraj; Paulo, Octavio S.; Pena, Joao Carlos; Pfeiffer, Vera W.; Pinho, Pedro; Piot, Anthony; Porth, Ilga M.; Poulos, Nicholas; Puentes, Adriana; Qu, Jiao; Quintero-vallejo, Estela; Raciti, Steve M.; Raeymaekers, Joost A. M.; Raveala, Krista M.; Rennison, Diana J.; Ribeiro, Milton C.; Richardson, Jonathan L.; Rivas-torres, Gonzalo; Rivera, Benjamin J.; Roddy, Adam B.; Rodriguez-munoz, Erika; Roman, Jose Raul; Rossi, Laura S.; Rowntree, Jennifer K.; Ryan, Travis J.; Salinas, Santiago; Sanders, Nathan J.; Santiago-rosario, Luis Y.; Savage, Amy M.; Scheepens, J. F.; Schilthuizen, Menno; Schneider, Adam C.; Scholier, Tiffany; Scott, Jared L.; Shaheed, Summer A.; Shefferson, Richard P.; Shepard, Caralee A.; Shykoff, Jacqui A.; Silveira, Georgianna; Smith, Alexis D.; Solis-gabriel, Lizet; Soro, Antonella; Spellman, Katie, V; Whitney, Kaitlin Stack; Starke-ottich, Indra; Stephan, Jorg G.; Stephens, Jessica D.; Szulc, Justyna; Szulkin, Marta; Tack, Ayco J. M.; Tamburrino, Italo; Tate, Tayler D.; Tergemina, Emmanuel; Theodorou, Panagiotis; Thompson, Ken A.; Threlfall, Caragh G.; Tinghitella, Robin M.; Toledo-chelala, Lilibeth; Tong, Xin; Uroy, Lea; Utsumi, Shunsuke; Vandegehuchte, Martijn L.; Vanwallendael, Acer; Vidal, Paula M.; Wadgymar, Susana M.; Wang, Ai-ying; Wang, Nian; Warbrick, Montana L.; Whitney, Kenneth D.; Wiesmeier, Miriam; Wiles, J. Tristian; Wu, Jianqiang; Xirocostas, Zoe A.; Yan, Zhaogui; Yao, Jiahe; Yoder, Jeremy B.; Yoshida, Owen; Zhang, Jingxiong; Zhao, Zhigang; Ziter, Carly D.; Zuellig, Matthew P.; Zufall, Rebecca A.; Zurita, Juan E.; Zytynska, Sharon E.; Johnson, Marc T. J. (2022). Global Urban Environmental Change Drives Adaptation in White Clover. Science, 375(6586), 1275+.

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Abstract

Urbanization transforms environments in ways that alter biological evolution. We examined whether urban environmental change drives parallel evolution by sampling 110,019 white clover plants from 6169 populations in 160 cities globally. Plants were assayed for a Mendelian antiherbivore defense that also affects tolerance to abiotic stressors. Urban-rural gradients were associated with the evolution of clines in defense in 47% of cities throughout the world. Variation in the strength of clines was explained by environmental changes in drought stress and vegetation cover that varied among cities. Sequencing 2074 genomes from 26 cities revealed that the evolution of urban-rural dines was best explained by adaptive evolution, but the degree of parallel adaptation varied among cities. Our results demonstrate that urbanization leads to adaptation at a global scale.

Keywords

Surface Temperature Retrieval; Cyanogenesis Clines; Hydrogen-cyanide; Gene Flow; F-st; Evolution; Polymorphism; Emissivity; Discovery; Framework; Drought; Urban Environments; Urbanization; Environmental Changes; Herbivory; Urban Development; Adaptation; Chemical Defense; Urban Areas; Data Collection; Trifolium Repens

Assessing Multifamily Residential Parking Demand and Transit Service

Rowe, Daniel H.; Bae, Chang-hee Christine; Shen, Qing. (2010). Assessing Multifamily Residential Parking Demand and Transit Service. Ite Journal-institute Of Transportation Engineers, 80(12), 20 – 24.

Abstract

This study examined the relationship of multifamily residential parking demand and transit level of service in Two King County, WA, USA, Urban Centers: First Hill/Capitol Hill (FHCH) and redmond. In addition, current parking policies were assessed for their ability to meet the observed parking demand, and an alternative method to collect parking demand data was explored.

Transportation-Efficient Land Use Mapping Index (TELUMI), a Tool to Assess Multimodal Transportation Options in Metropolitan Regions

Moudon, Anne Vernez; Sohn, D. W.; Kavage, Sarah E.; Mabry, Jean E. (2011). Transportation-Efficient Land Use Mapping Index (TELUMI), a Tool to Assess Multimodal Transportation Options in Metropolitan Regions. International Journal Of Sustainable Transportation, 5(2), 111 – 133.

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Abstract

The Transportation-Efficient Land Use Mapping Index (TELUMI) is a tool to visualize and to quantify micro-level metropolitan land use and development patterns as they affect travel demand. It can assist transportation and urban planning authorities in identifying zones where land use supports multimodal travel and in determining a region's transportation system efficiency. An application of the TELUMI in the Seattle region showed that residential units and employment concentrated in transportation-efficient areas covering less than 20 percent of the region. An interactive, multi-scaled tool, the TELUMI can also support scenario building to simulate land use changes that improve transportation system performance.

Keywords

Urban; Geographic Information Systems; Land Use; Mapping Index; Metropolitan; Multimodal Travel; Transportation Efficiency

Maximising the Net Social Benefit of the Construction of Post-Disaster Alternative Housing Projects

El-Anwar, Omar. (2013). Maximising the Net Social Benefit of the Construction of Post-Disaster Alternative Housing Projects. Disasters, 37(3), 489 – 515.

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Abstract

The widespread destruction that follows large-scale natural disasters, such as Hurricane Katrina in August 2005, challenges the efficacy of traditional temporary housing methods in providing adequate solutions to housing needs. Recognising these housing challenges, the Congress of the United States allocated, in 2006, USD 400 million to the Department of Homeland Security to support Alternative Housing Pilot Programs, which are intended to explore the possibilities of providing permanent and affordable housing to displaced families instead of traditional temporary housing. This paper presents a new methodology and optimisation model to identify the optimal configurations of post-shelter housing arrangements to maximise the overall net socioeconomic benefit. The model is capable of quantifying and optimising the impacts of substituting temporary housing with alternative housing on the social and economic welfare of displaced families as well as the required additional costs of doing so. An application example is presented to illustrate the use of the model and its capabilities.

Keywords

Public Housing; Temporary Housing; Hurricane Katrina, 2005; Natural Disasters; Socioeconomic Factors; Mathematical Models; Mathematical Optimization; United States; Alternative Housing Pilot Programs; Optimisation; Socioeconomic Benefit; Disasters

Has Transportation Demand of Shanghai, China, Passed Its Peak Growth?

Zhao, Zhan; Zhao, Jinhua; Shen, Qing. (2013). Has Transportation Demand of Shanghai, China, Passed Its Peak Growth? Transportation Research Record, 2394, 85 – 92.

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Abstract

On the basis of four comprehensive transportation surveys in Shanghai, China, this study examined the latest trends in Shanghai's travel demand; investigated their social, economic, and spatial drivers; and compared the pace of travel demand growth in three periods: 1980s to early 1990s, early 1990s to mid-2000s, and mid-2000s to the present. The demand growth was relatively slow in the first period and then sped up in the second before it returned to a slower pace in the third period. As for trip purpose, Shanghai's travel is much more diversified than previously, with an increasing share of noncommuting trips (from 28% in 1995 to 46% in 2009). Spatially, travel demand is dispersed from the central district to peripheral districts because of urban expansion and decentralization and from Puxi (west of the Huangpu River) to Pudong (east of the Huangpu River) as a result of significant economic development of the Pudong New Area. Both spatial diffusion and purpose diversification favor the convenience and flexibility of private motor vehicles. Driven by rapid motorization, vehicle travel is growing at a much faster pace than person travel. Overall, the annual growth rate for travel demand in Shanghai reached its peak in 2004 for both person trips and vehicle trips. In absolute numbers, person trip growth has peaked, but vehicle trip growth has not. In response to the growing demand, especially rapid motorization, the local government has made tremendous investments in road infrastructure and public transit, and it has attempted to manage demand through vehicle ownership control.

Keywords

Urban; Impacts; Policy

Design Management in Design-Build Megaprojects: SR 99 Bored Tunnel Case Study

Gatti, U.C.; Migliaccio, G.C.; Laird, L. (2014). Design Management in Design-Build Megaprojects: SR 99 Bored Tunnel Case Study. Practice Periodical On Structural Design And Construction, 19(1), 148-58.

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Abstract

The increasing use of the design-build project delivery method has resulted in it now being one of the most popular nontraditional methods for delivering road, bridge, mass transit, and rail projects in the United States. However, although the use of design-build is widespread, there remains a substantial lack of information about how to effectively plan and implement design management procedures for design-build transportation projects. In particular, transportation agencies lack information about how to shape appropriate design management roles for various contractual parties and to manage design activities for design-build megaprojects. To fill this gap, this paper presents a case study of the SR 99 Bored Tunnel project in Seattle, Washington. It provides detailed information on how the owner, the Washington State DOT (WSDOT), incorporated design management procedures into its requirements and how the design-builder, Seattle Tunnel Partners, implemented them within its project management processes.

Keywords

Boring; Design Engineering; Project Management; Tunnels; Design-build Megaproject; Design-build Project Delivery Method; Road Project; Bridge Project; Mass Transit Project; Rail Project; United States; Design-build Transportation Project; Transportation Agency; Sr 99 Bored Tunnel Project; Seattle; Washington State Dot; Wsdot; Design Management; Project Management Process

Possible Worlds: Henri Lefebvre and the Right to the City

Purcell, Mark. (2014). Possible Worlds: Henri Lefebvre and the Right to the City. Journal Of Urban Affairs, 36(1), 141 – 154.

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Abstract

There has been much attention paid recently the idea of the right to the city. This article argues that in order to fully appreciate the power of the idea, we should understand it through a close reading of Henri Lefebvre's body of work on the city and politics. Lefebvre presents a radical vision for a city in which users manage urban space for themselves, beyond the control of both the state and capitalism. However, while it calls for profound change, Lefebvre's vision is also eminently practical; it can very much serve as a guide and inspiration for concrete action to change the city today.

Messy Talk in Virtual Teams: Achieving Knowledge Synthesis through Shared Visualizations

Dossick, Carrie Sturts; Anderson, Anne; Azari, Rahman; Iorio, Josh; Neff, Gina; Taylor, John E. (2015). Messy Talk in Virtual Teams: Achieving Knowledge Synthesis through Shared Visualizations. Journal Of Management In Engineering, 31(1).

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Abstract

Engineering teams collaborating in virtual environments face many technical, social, and cultural challenges. In this paper we focus on distributed teams making joint unanticipated discoveries in virtual environments. We operationalize a definition of messy talk as a process in which teams mutually discover issues, critically engage in clarifying and finding solutions to the discovered issues, exchange their knowledge, and resolve the issue. Can globally distributed teams use messy talk via virtual communication technology? We analyzed the interactions of four distributed student teams collaborating on a complex design and planning project using building information models (BIMs) and the cyber-enabled global research infrastructure for design (CyberGRID), a virtual world specifically developed for collaborative work. Their interactions exhibited all four elements of messy talk, even though resolution was the least common. Virtual worlds support real-time joint problem solving by (1)providing affordances for talk mediated by shared visualizations, (2)supporting team perceptions of building information models that are mutable, and (3)allowing transformations of those models while people were together in real time. Our findings suggest that distributed team collaboration requires technologies that support messy talkand iterative trial and errorfor complex multidimensional problems. (C) 2014 American Society of Civil Engineers.

Keywords

Buildings (structures); Data Visualisation; Design; Grid Computing; Groupware; Knowledge Management; Structural Engineering Computing; Team Working; Virtual Manufacturing; Virtual Reality; Virtual Teams; Knowledge Synthesis; Engineering Teams Collaboration; Virtual Environments; Technical Challenges; Social Challenges; Cultural Challenges; Distributed Teams Making; Messy Talk; Knowledge Exchange; Globally Distributed Teams; Virtual Communication Technology; Distributed Student Teams; Design And Planning Project; Building Information Models; Bim; Cyber-enabled Global Research Infrastructure; Cybergrid; Virtual World; Collaborative Work; Team Perceptions; Iterative Trial And Error; Complex Multidimensional Problems; Visual Representations; Construction; Technology; Implementation; Collaboration; Communication; Teamwork; Digital Techniques; Knowledge-based Systems