scholarly journals Sustainable Ship Loading Planning for Prefabricated Products in the Construction Industry

2020 ◽  
Vol 12 (21) ◽  
pp. 8905
Author(s):  
Wen Yi ◽  
Robyn Phipps ◽  
Hans Wang
Keyword(s):  
Construction Industry ◽  
Large Scale ◽  
Transportation Cost ◽  
Sustainable Transportation ◽  
Construction Site ◽  
Integer Optimization ◽  
Construction Sites ◽  
Capacity Limits ◽  
Proposed Model

This paper focuses on sustainable transportation of prefab products from factories to construction sites by ship. Since the transportation cost for all the prefab products of a construction site is mainly dependent on the number of cargo holds used on ships, a loading plan for prefab products that minimizes the number of holds required is highly desirable. This paper is therefore devoted to the development of an optimal loading plan that decides which prefab products are loaded into each cargo hold and how to pack these prefab products into the holds so that as few holds as possible are used. We formulate the problem as a large-scale integer optimization model whose objective function is to minimize the total number of cargo holds used and whose constraints represent the cargo hold capacity limits. We develop a heuristic to solve the problem and obtain a high-quality solution. We have tested the model and algorithm on a case study that includes 20 prefab products. We find that different cargo holds carry prefab products that have quite different densities. Moreover, the orientations of many prefab products are different from their default orientations. The results demonstrate the applicability of the proposed model and algorithm.

scholarly journals Tension between Productivity and Respect for People in Construction

2020 ◽  
Vol 312 ◽  
pp. 05005
Author(s):  
Lesiba George Mollo ◽  
Fidelis Emuze ◽  
Nicholus Sishuba
Keyword(s):  
South Africa ◽  
Real Time ◽  
Construction Industry ◽  
Management System ◽  
Ethical Reasoning ◽  
Construction Site ◽  
Construction Sites ◽  
Factors Influencing ◽  
Major Factors ◽  
Structured Questionnaire

Productivity in the construction industry is declining in real-time. The decline in productivity is a source of worry for practitioners and researchers. The purpose of this paper is to ascertain major factors influencing productivity in relation to the notion of respects for people (RFP) in construction. The reviewed literature influences the semi-structured questionnaire used to survey construction professionals in Johannesburg, South Africa. The results reaffirm the tension productivity increment and the enhancement of RfP as both ideas appear to be moving in opposite directions on a typical construction site. It was discovered that respect for workers on a construction site is a major concern. The paper argues that ethical reasoning affects productivity. Therefore, an appropriate management system is required to improve the workers' perception of productivity and RfP working on construction sites.

Organized Crime in the Construction Industry

1977 ◽  
Vol 23 (3) ◽  
pp. 304-311 ◽  
Author(s):  
Ralph C. Thomas
Keyword(s):  
Construction Industry ◽  
Organized Crime ◽  
Construction Site ◽  
Construction Sites ◽  
Heavy Equipment ◽  
Societal Changes

The theft of heavy equipment from construction sites is an organized, systematic, criminal operation, encouraged and sustained by contractors within the construction industry and designed to enrich burglars, illicit salesmen, and seemingly legitimate businessmen. From information gathered directly from those affected and involved, the article shows how the system of organized construction site crime works, which institutions profit as a result, and how these institutions support one another to give organized theft the means to survive. Finally, it explains the reasons for failure of current attempts to fight this type of crime and suggests the types of institutional and societal changes needed to curtail it.

scholarly journals Project Risk time Management – A Proposed Model and a Case Study in the Construction Industry

2015 ◽  
Vol 64 ◽  
pp. 24-31 ◽  
Author(s):  
Barbara Gładysz ◽  
Dariusz Skorupka ◽  
Dorota Kuchta ◽  
Artur Duchaczek
Keyword(s):  
Construction Industry ◽  
Time Management ◽  
Project Risk ◽  
Proposed Model

scholarly journals DEVELOPMENT OF METHODS FOR CREATING DIGITAL ENGINEERING-TOPOGRAPHIC-TOPOGRAPHICAL PLANS USING MATERIALS OF UNMANNED AERIAL PHOTOGRAPHY SYSTEMS AT LOW ALTITUDES

2021 ◽  
Vol 1 ◽  
pp. 57-64
Author(s):  
Tatyana A. Khlebnikova ◽  
Aleksandr S. Goril'ko ◽  
Andrej M. Astapov
Keyword(s):  
Construction Industry ◽  
Aerial Photography ◽  
Large Scale ◽  
Unmanned Aircraft ◽  
Unmanned Aircraft Systems ◽  
Construction Site ◽  
Metro Station ◽  
Aircraft Systems ◽  
Digital Engineering ◽  
Explanatory Information

Currently, the existing approaches to geodetic support for the design, survey, construction and reconstruction of buildings and structures do not fully meet the needs of the construction industry. Digital large scale topographic plans do not fully reflect the situation on the construction site. In this regard, to supplement digital engineering and topographic plans with information obtained using the survey materials of unmanned aircraft systems (UAS) is proposed. The article discusses the possibilities of obtaining and processing the materials of surveying with UAS at low altitudes, using the example of the construction of a new metro station in Novosibirsk. The DJI Phantom 4 PRO quadrocopter was used as a UAS. The accuracy of the obtained orthophotoplan is sufficiently suitable as explanatory information for the digital engineering and topographic plan of the object under study.

scholarly journals An Effective Safety Handling System for Construction Industry in Kerala

2020 ◽  
Vol 9 (3) ◽  
pp. 3968-3972
Keyword(s):  
Construction Industry ◽  
Safety Management ◽  
Construction Safety ◽  
Body Parts ◽  
Construction Site ◽  
Construction Sites ◽  
Loss Of Life ◽  
Factors Affecting ◽  
Construction Safety Management ◽  
Construction Works

The construction industry plays a prominent part in the progress of a country socially and economically. Nowadays construction industry has grown profit driven and the management focuses more on completing the projects on time neglecting safety of the workers. Construction works involving intricate works leading to accidents or injuries resulting in loss of life and body parts are rampant. So a proper safety management system is required to avoid accidents and improve safety at construction sites. Factors affecting safety at construction workplaces were identified and was surveyed through a quantitative questionnaire and analysed to form a basis for the total construction safety management model. The Total Construction Safety Management (TCSM) based on the PDCA modelling is proposed to improve safety at construction sites. This model can act as a guide to the present organizations and helps them to implement safety in quicker manner at construction site.

Constructing Conflict: The Politics of Job Creation Policy, Precarious Work, and Citizenship in South Africa’s Construction Industry

2021 ◽  
pp. 089692052110355
Author(s):  
Ben Scully ◽  
Thabiso Moyo
Keyword(s):  
Construction Industry ◽  
Social Inclusion ◽  
Large Scale ◽  
Job Creation ◽  
Public Works ◽  
Construction Sites ◽  
Citizenship Rights ◽  
Wage Work ◽  
The One ◽  
The Relationship

The paper examines the politics of state job creation policy in South Africa. We focus on the construction industry, which is a major sector for job creation policy, especially through a large scale public works programme. We argue that, while the creation of jobs is framed by government as a path towards dignity and social inclusion for poor and unemployed citizens, the precarious reality of low-wage work in the construction industry undermines the potential pro-social effects of wage employment. Beneficiaries of job creation policy often experience frustration and alienation, and the construction sites on which they work are often marked by conflict and disruption. We describe two different forms that this conflict takes, on the one hand demanding wage work as a citizenship right, on the other eschewing generalized citizenship claims in favour of particularistic and exclusionary demands for jobs based on localized identities. These seemingly contradictory but intertwined types of conflict show the complexity of the relationship between state job creation and citizenship rights in an industry and an economy defined by precarious forms of employment.

Living on the Construction Site: Paraguayan Construction Workers in Buenos Aires

2017 ◽  
Vol 45 (1) ◽  
pp. 77-90 ◽  
Author(s):  
Álvaro del Águila
Keyword(s):  
Construction Industry ◽  
Metropolitan Area ◽  
Migrant Workers ◽  
Buenos Aires ◽  
Labor Relations ◽  
Construction Workers ◽  
Construction Site ◽  
Construction Sites ◽  
Ethnographic Fieldwork

Argentine enterprises subsume Paraguayan migrant workers into the construction industry in the Buenos Aires metropolitan area, subordinating them to the demands of production by temporarily housing them on the construction sites themselves. Ethnographic fieldwork carried out on various construction sites between 2006 and 2015 shows how this practice overlaps with wider processes of global transformation in labor relations. The lodging of workers on construction sites is an increasingly widespread strategy for capitalist entrepreneurs to exploit the migrant workforce even further. Las empresas argentinas han incorporado a los trabajadores migrantes paraguayos a la industria de la construcción en el área metropolitana de Buenos Aires y los han subordinado a las exigencias de la producción, alojándolos temporalmente en las obras mismas. Un trabajo de campo etnográfico realizado en varias obras entre 2006 y 2015 muestra cómo dicha práctica se entrelaza con procesos más amplios en la transformación de las relaciones laborales a nivel global. El alojamiento de los trabajadores en las obras es una estrategia cada vez más extendida para que los empresarios capitalistas puedan explotar la mano de obra migrante aún más de lo que ya hacen.

scholarly journals Adoption of environmental practices on construction sites

2017 ◽  
Vol 17 (4) ◽  
pp. 9-24 ◽  
Author(s):  
Natasha Ilse Rothbucher Thomas ◽  
Dayana Bastos Costa
Keyword(s):  
Environmental Impacts ◽  
Sustainable Management ◽  
Management Practices ◽  
Participant Observation ◽  
Economic Feasibility ◽  
Construction Site ◽  
Construction Sites ◽  
Environmental Practices ◽  
Construction Activity

Abstract Sustainability on construction sites and its impacts on the environment have become increasingly relevant. Large quantities of materials, water and energy, among other resources of various types and origins, are consumed on construction sites during the production activities and by the temporary facilities. This paper aims at presenting a set of criteria for the adoption of sustainable management practices on construction sites aiming at mitigating environmental impacts produced during the construction phase. An in-depth case study was carried out on the new building of the Construction Chamber for the state of Bahia, Brazil. Different environmental impacts for each construction activity specific to the construction site were studied and an economic feasibility study of each solution was performed, followed by the implementation of these practices. Monitoring data was collected through checklists, indicators and periodic project management meetings. Participant observation and document analysis were also used as sources of evidence. The main findings refer to the identification of solutions, main difficulties in adopting such solutions, the development of indicators for monitoring low environmental impact on construction sites, as well as a set of recommendations for the deployment of sustainable practices on construction sites.

scholarly journals IMPROVING EFFICIENCY IN EMERGENCY RESPONSE FOR CONSTRUCTION SITE FIRES: AN EXPLORATORY CASE STUDY

2015 ◽  
Vol 22 (3) ◽  
pp. 322-332 ◽  
Author(s):  
Ming-Kuan TSAI
Keyword(s):  
Emergency Response ◽  
Fire Management ◽  
Safety Management ◽  
Fire Detection ◽  
Construction Site ◽  
Construction Sites ◽  
Management Platform ◽  
Knowledge Models ◽  
The Status

This study proposes an approach to assist construction managers with fire management. Since accidental fires at construction sites often go undetected until they begin to spread, they can cause serious damage. Although researchers have applied information technology to construction site safety management, few studies have focused on the relation­ship between information techniques and construction site fires. After investigating this relationship, the results revealed two problems: difficult fire detection and disorderly emergency response. Therefore, the intent of this study was to build an intelligent construction site fire management platform by integrating image recognition for automatic fire detection and knowledge models for immediate emergency response. Based on several tests on three common types of acciden­tal fires at construction sites, the results demonstrated that the platform can detect fires and alert construction manag­ers quickly. Through mobile information transmission, the construction managers were able to understand the status of on-site fires and respond appropriately. This study offers a useful reference for similar applications in construction site safety management.

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