| 1. |
- Bröchner, Jan, 1948, et al.
(författare)
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Effects of construction industry support for PhD projects: The case of a Swedish scheme
- 2020
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Ingår i: Industry & higher education. - : SAGE Publications. - 0950-4222 .- 2043-6858. ; 34:6, s. 391-400
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Tidskriftsartikel (refereegranskat)abstract
- One of the many varieties of university–industry collaboration is industry engagement in doctoral programmes. A scheme operated by the Development Fund of the Swedish Construction Industry since the early 1990s has supported thesis projects for about 150 PhD candidates. While they were doctoral students they were employed by contractors as industrial doctoral candidates or by universities. The purpose of this investigation was to analyse how, as PhD graduates, they perceived the benefits of doctoral studies for themselves as individuals and also how they have contributed to the organization that employs them. Results from a survey with 125 respondents show that the greatest individual benefit is that of being able to access relevant information more rapidly, and that the greatest perceived organizational benefit arises from their ability to cooperate with knowledgeable clients.
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| 2. |
- Bröchner, Jan, 1948, et al.
(författare)
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Från idé till affär: Framgångsrika innovationsprocesser inom samhällsbyggandet
- 2017
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- The purpose has been to identify conditions essential for innovative ideas to be developed into commercial products, services and processes within the field of the built environment. The analysis of projects awarded innovation grants within the Bygginnovationen programme has been intended to emphasize the possibilities for firms to select strategies for initiating and exploiting innovative ideas.Innovation and planning grants for 87 projects through Bygginnovationen were listed and analysed. A workshop with construction sector experts made an in-depth study of documentation related to five representative projects. Results were used for designing a questionnaire sent to 76 grant recipients. Analysis of the 62 responses included reasons for projects not having been commercialized at the time of the survey and also recipient views on the advice given by the Bygginnovationen Business Council.Applicant firms were found to belong to a broad range of industries. Firms that had successfully commercialized their ideas were slightly younger and had slightly more employees than those who had not (yet) been able to reach the market. One fifth of all supported project ideas had been commercialized, and for most of the remaining projects, development was still going on. The greatest obstacle to commercialization appears to be complexity of the project idea, followed by insufficient market size. Advice given by the Bygginnovationen Business Council was often seen by applicants as helpful, and a frequent consequence was that projects were strengthened by supplementary competences.
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| 3. |
- Bröchner, Jan, 1948, et al.
(författare)
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IT support for contractor monitoring of refurbishment projects
- 2017
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Ingår i: Integrating Information in Built Environments: From Concept to Practice. - Abingdon, Oxon ; New York, NY : Routledge, 2018. | Series: CIB series : Routledge. ; , s. 150-159
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Bokkapitel (övrigt vetenskapligt/konstnärligt)abstract
- Refurbishment activities comprise a high proportion of construction industry output in most developed countries. There is no international consensus among statisticians as how to define refurbishment or renovation of buildings (Mansfield, 2002). The UK Office for National Statistics publishes data indicating that the volume of ‘repair and maintenance’ corresponded to about 60 per cent of new work during 2014 and 2015. ‘Repair and maintenance’ was roughly equally divided between housing and non-housing, and it is probable that much of this was refurbishment. There are no obvious reasons why ongoing investment in existing buildings should decline and the potential for increasing environmental sustainability by improving energy performance in the building stock remains considerable. The EU Energy Efficiency Directive (2012/27/EU) adopted in 2012 includes a requirement for member states to develop long-term renovation strategies for their national building stocks.
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| 4. |
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| 5. |
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| 6. |
- Fredriksson, Anna, 1979-, et al.
(författare)
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Construction related urban disturbances : Identification and linking with an IoT-model
- 2022
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Ingår i: Automation in Construction. - : Elsevier. - 0926-5805 .- 1872-7891. ; 134
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Tidskriftsartikel (refereegranskat)abstract
- While being a significant part of the urban development, construction projects disturb different stakeholders in various ways. There are three problems associated with construction disturbances: (i) most of these disturbances are not recognised by the people causing them, (ii) they are not monitored and (iii) if they are to be monitored, data is spread among stakeholders. This paper defines what a disturbance is, presents a list of disturbances, linking disturbances to stakeholders and, categorising them based on their distance from construction sites (responding to (i)). Next, a IoT domain model is developed, demonstrating how IoT in construction needs to be combined with the sensors of smart cities to capture the primitives of these disturbances (responding to (iii)). This is a first step towards enabling large-scale data-gathering of construction transport disturbances (responding to (ii)), which is a necessity to predict them and allow better construction transport planning to decrease disturbances.
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| 7. |
- Fredriksson, Anna, 1979-, et al.
(författare)
-
Störningsfri stad : slutrapport i projektet Visualiserad byggtrafikplanering för en störningsfri stadsutveckling
- 2022
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- Störningsfri stad har kombinerat kunskaper inom Trafikplanering, Visualisering, Bygglogistik, Sensorer och Offentlig planering och styrning. Projektet har letts av Linköpings universitet, Institutionen för Teknik och Naturvetenskap och finansierats av Vinnova, IHS. Projektet har löpt mellan slutet av 2018 och 2021 ut. Projektdeltagare har varit VTI, RISE, Norrköpings kommun, Linköpings kommun, Stockholm stad, Uppsala kommun, Trafikverket Projekt Ostlänken, LE Lundbergs Fastigheter, Wiklunds Åkeri, Wellsec, SanktKors, Byggföretagen, Telenor och Logistikia.Projektet har utvecklat en verktygsprototyp som stöttar kollaborativ planering av byggtrafik och stadsplanering genom att visualisera pågående byggprojekts sammanlagda mängd transporter och var i staden (i form av en kartvy) det uppstår störningar i form av förseningar pga dessa. Verktyget bygger på en MATSim trafikmodell (i nuläget Norrköping) inkluderande både persontransporter (modellerat baserat på mobilnätsdata) och byggtrafik (modellerat baserat på data från bygglogistiklösningar). Med hjälp av verktyget kan olika scenarier för att minska störningarna av byggtransporter testas. För att stötta användandet av verktyget har en kollaborativ planeringsprocess som visar på hur de olika aktörerna involverade i planeringen av byggtransporter och stadsutveckling behöver interagera med varandra utvecklats. Projektet också deltagit i utvecklingen av en sensorbox (partiklar, luftfuktighet, temperatur och ljud) samt slangmätningsmetodik för att öka kunskapen om byggtransporter. Baserat på de resultat som projektet har behovsägarna har påbörjat arbeten med att bättre hantera de störningar som uppstår pga byggprojekt i staden.
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| 8. |
- Haglund, Petter, 1995-
(författare)
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Logistics Organization Design for Building Contractors
- 2024
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- Construction logistics management is crucial for timely and cost-effective project delivery. While studies highlight improved project performance with a strategic and long-term approach to construction logistics management, there is a tendency to pursue project-centric logistics planning, hindering long-term, strategic approaches. Building contractors often prioritize dedicated solutions for specific projects, resulting in a lack of focus on company-wide efficiency. In the context of project-oriented building construction, where the logistics organization governs the planning, coordination, and control of resource flows, there is little known about how to tailor logistics strategies for the context of building contractors. While studies highlight the potential of strategic approach to logistics on project and supply chain performance, the adaptation of logistics strategies in the construction sector, especially considering influential contextual factors, remains largely unexplored.Current logistics strategy literature predominantly draws from the repetitive manufacturing industries, often in the United States, failing to account for the distinct challenges posed by project-oriented construction. This thesis addresses how building contractors should strategically design their logistics organizations, accounting for building contractors’ specific contextual factors and subsequently proposing logistics organization design configurations that align with their unique characteristics.The purpose is to investigate building contractors’ logistics strategy content and process with a focus on how to design the logistics organization. To fulfil the purpose, the following three research questions are formulated:RQ1. What contextual factors influence the design of building contractors’ logistics organizations?RQ2. How do the identified contextual factors influence the design of building contractors’ logistics organizations?RQ3. How should building contractors design their logistics organizations in response to the contextual factors?In response to RQ1, a combination of conceptual research, case studies, and a questionnaire study were undertaken to identify contextual factors influencing building contractors' logistics organizations, including the number of strategic business units (SBUs), product characteristics, and production process characteristics. These factors influence logistics organization design elements in terms of the degree of centralization, formalization, integration, and division of labour.To answer RQ2, a mix of conceptual research, case studies, and a questionnaire study were undertaken to investigate how contextual factors influence the logistics organization design element. The findings indicate that while product and production process characteristics influence logistics organization design, the impact of company size remains inconclusive. The findings challenge conventional understanding regarding the influence of company size on logistics organization design, emphasizing the central role of product characteristics, production processes, and the number of SBUs among building contractors.In response to RQ3, case studies were used to classify several logistics organization design configurations determined by the building contractors' product characteristics, production process characteristics, and the number of SBUs. These configurations outline responses to product characteristics, production process characteristics, and the number of SBUs. For instance, configurations reflecting single business unit contractors with high logistics predictability favour a centralized logistics organization, while those involving multiple SBUs lean towards divisional logistics function structures. Furthermore, the findings highlight the feasibility and preference for hybrid configurations in aligning logistics organization design with the unique characteristics of building contractors, contributing insights valuable for adapting organizational structures in diverse operational contexts.This thesis contributes to logistics organization design literature by explaining how contextual factors shape building contractors' logistics organizations. The focus on construction-specific contextual factors, such as the degree of pre-engineering (product characteristics) and off-site fabrication (production process characteristics), broadens the scope beyond repetitive manufacturing contexts. The suggested logistics organization structures and configurations provide a foundation for understanding logistics strategy in construction and similar engineer-to-order industries. However, generalization to other engineer-to-order sectors requires additional research.The thesis highlights a lack of formalized logistics strategies among building contractors. The identified logistics organization structures and design configurations offer practical insights for initiating a strategic logistics process, thus contributing to construction logistics practice. However, while the thesis advances logistics organization design understanding, the need for further research remains. Future research avenues include investigating the impact of company size, exploring misfit consequences, developing key performance indicators, and refining the implementation process. The methodological approach suggests the need for practice-oriented research designs to actively apply and evaluate the thesis' concepts in real-world scenarios.
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| 9. |
- Haglund, Petter
(författare)
-
Logistics Strategy for Building Contractors : CONTEXT, CONTENT, AND PROCESS
- 2022
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Licentiatavhandling (övrigt vetenskapligt/konstnärligt)abstract
- A logistics strategy is at the foundation of how a company manages the flow of resources in the supply chain. It ensures that the logistics function of a company contributes to fulfilling strategic goals. In the project-based building construction industry, logistics is a means of supporting building operations by ensuring that resource flows are managed efficiently in the supply chain and at the construction site. However, there is a tendency to focus on operational logistics issues and to adopt established logistics principles from other industries to solve logistics-related problems in building construction, which typically favour “one size fits all” solutions. These approaches to construction logistics are problematic because building contractors target different market segments through their type of products, production methods, and supply chains. Therefore, there is not a “one best way” of managing logistics in building construction. This thesis focuses on how a building contractor can adopt a more strategic and long-term approach to logistics. Strategy is typically regarded in terms of three dimensions: context, content, and process. Consequently, building contractors need to understand the logistics strategy context, how it influences the logistics strategy content, and the process of formulating and implementing a logistics strategy. The purpose of this licentiate thesis is therefore to investigate the fit between logistics strategy context and content for building contractors.To fulfil the purpose, the following two research questions are answered:RQ1: What elements of logistics strategy context and content can be used to assess the fit of building contractors’ logistics strategies?RQ2: What leads to fit/misfit in building contractors’ logistics strategies?To answer the research questions, a combination of conceptual and empirical research methods has been used. The conceptual part comprises a literature review that was used to derive constructs to develop conceptual research frameworks. The literature review also served as input to defining research questions and as guidance for collecting empirical data. The empirical methods used are based on case studies to further develop and verify the conceptual research framework.The main findings of this thesis are four logistics strategy context elements and five content elements that can be used to assess the fit between a building contractor’s logistics strategy context and content. This fit is important to facilitate logistics’ role as a support function for a cost/delivery or flexibility-oriented competitive strategy. However, fit is difficult to achieve in practice and the logistics strategy process can be constrained by the building contractor’s previous investments and the support given by internal stakeholders. This means that fit is not solely a deliberate choice made for efficiency/effectiveness reasons but includes comprises between previous and future directions and managerial discretion. This thesis contributes to the logistics strategy body of knowledge concerning the context, content, and process dimensions of logistics strategy within building construction. The thesis shows that there are trade-offs in selecting a logistics strategy that supports a cost/delivery or flexibility-oriented strategy. These trade-offs emerge as a consequence of different degrees of pre-engineering, type of production systems, and supply chain structures employed by building contractors, which building contractors needs to address during logistics strategy formulation. A logistics strategy profiling template was developed, which is a tool that managers in building contractor organizations can use to analyze and reconfigure a logistics strategy. Furthermore, the thesis highlights that building contractors should establish a central logistics function that takes responsibility for strategic logistics decisions, regardless of their logistics strategy context.
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| 10. |
- Haglund, Petter, et al.
(författare)
-
Organizing logistics to achieve strategic fit in building contractors : a configurations approach
- 2022
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Ingår i: Construction Management and Economics. - : Routledge. - 0144-6193 .- 1466-433X. ; 40:9, s. 711-726
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Tidskriftsartikel (refereegranskat)abstract
- Previous research indicates that the success of logistics solutions in building projects depends on how they are organized in accordance with the logistics context, which is determined by building contractors’ competitive priorities, product characteristics, and production process choices. Taking a configurations approach, the purpose of this paper is to describe the fit between the logistics context and the organizing of logistics at a strategic level. A conceptual research framework is derived from literature postulating an influence of the logistics context on the organizing of logistics. The framework is applied to four cases by the means of strategic profiling, which provides a snapshot of the fit in the cases’ logistics configurations. The findings indicate that the type of production process influences the degree to which logistics decisions should be made centrally and that the degree of standardization and pre-engineering influence the degree to which logistics processes should be formalized. The main contributions are the identification of logistics configuration variables and the description of the fit between building contractors’ logistics context and the organizing of logistics. For managerial practice, a logistics configuration profiling template was developed that can be used as a tool in the logistic strategy process.
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| 11. |
- Sezer, Ahmet Anil, 1987
(författare)
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Building refurbishment site managers' waste management practices
- 2015
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Ingår i: CIB Joint International Symposium Going North for Sustainability. - 9781326479510 ; , s. 555-565
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Konferensbidrag (refereegranskat)abstract
- Waste management in refurbishment projects can be costly and harmful to the environment. Legislation on waste management sets limits, but the construction industry remains among the top contributors to waste generation. Well planned waste management can drive improvements in productivity and environmental sustainability. Site managers’ waste management strategies might include reducing waste generation, reuse, recycling and disposal. The aim is to analyse the administrative and physical factors influencing refurbishment site managers’ attitudes and behaviours towards waste management. Eight semi-structured interviews were held with site managers, two with project managers and two with environmental staff belonging to large contractors involved in housing and office refurbishment projects in Sweden. Waste management practices on refurbishment sites were found to differ. Influences on site managers arise at three organisational levels: top management (sustainability policies), local level (project budgets), and site level (physical factors including limited space). Disposal of waste is the last choice of most site managers given cost and company policies. Site managers devise waste management strategies based on environmental inventories and project size. In smaller projects, waste contractors are employed only for physical support and site managers have less flexibility due to limited physical space. Design-build procurement is viewed by site managers as more efficient for waste management; partnering is promoted for greener refurbishment projects. Client demand and company policy heavily influence practices. Unlike new construction, refurbishment clients seldom require green waste management to a higher standard than is typical of large contractors.
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| 12. |
- Sezer, Ahmet Anil, 1987
(författare)
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Construction Performance Measurement: Site Managers in Refurbishment Projects
- 2016
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- Firms use management accounting, controls and performance measurement to ensure that employee activities are aligned with organizational goals and strategies. Performance is measured at different levels: industry, firm, project and activity. While productivity is a commonly used measure of performance at the industry level, in the construction industry, sustainability is more often used at the firm and project levels. Monitoring resource use in refurbishment projects is desirable from a sustainability and productivity viewpoint. Also, in the context of criticisms levelled at the construction industry for being a major generator of waste, demolition activities in refurbishment are important. The purpose of this thesis is to investigate how construction performance is measured by focusing on refurbishment site managers monitoring and management of resource use. An initial analysis of the relations between construction industry productivity and measures of construction project performance indicates that what might appear to suggest low levels of productivity growth in official statistics can be explained in part by the limited range of output and input qualities considered. Current measures of productivity in refurbishment projects are limited to simple, area-based key indicators. To obtain a better measure of productivity requires the range of output and input qualities to be extended using data captured from performance measures typically used for projects. This thesis draws on the data collected in three empirical studies. The first empirical study is based on 8 short, semi-structured interviews. The data in second empirical study was collected through 27 semi-structured interviews. Data collection in the third empirical study involved a pilot questionnaire survey, short semi-structured interviews and, finally, a national questionnaire designed to collect information from refurbishment site managers. To minimize bias related to medium choice, the national questionnaire was distributed by both e-mail and by post in paper format.Resource use monitoring and management at refurbishment sites includes site managers’ monitoring of resource use and their waste management practices. The literature indicates that site managers' waste management efforts are influenced by several factors, which may be project related, organizational and personal, technical, or related to the industry culture and legislation. The data here show that waste sorting is the only common waste management activity conducted on refurbishment sites. Project size, level of contract detail and specific client demands for waste management are the three main factors associated with waste management efforts. Large projects may benefit from fewer problems related to site space and availability of more extensive services from waste contractors, including advice during project planning. Although the statistical analysis shows that the relation between contract type (traditional/design-build) and waste practices is weak, there is a potential for reducing waste generation by integrating the project design and the detailed planning of refurbishment activities on site. In this context, more efficient information and communication technologies (ICT) for developing and using digital building information models are desirable.Findings indicate that ICT support for managing resource use on refurbishment sites can be understood mainly as being a case of technology acceptance. Refurbishment site managers’ ICT choices are influenced more by performance expectancy than by effort expectancy. Laptops and traditional pen and paper are the most frequently used media by refurbishment site managers, although they often use tablets in private. Screen size, ease of data entry and information updating are important. Respondents saw little need to link to clients’ ICT systems.Flexible organizational policies related to environmental sustainability allow managers in project-based firms to respond to projects with different characteristics and limitations and to clients with different requirements and standards. Therefore it is worth to study the dilemma of routinizing employees’ actions in environments requiring flexibility for making decisions such as in large, project-based organizations that deliver business services.
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| 13. |
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| 14. |
- Sezer, Ahmet Anil, 1987
(författare)
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Contractor Monitoring of Productivity and Sustainability in Building Refurbishment
- 2014
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Licentiatavhandling (övrigt vetenskapligt/konstnärligt)abstract
- The aging building stock in Europe and regulatory requirements to decrease energy consumption make sustainable refurbishment a valuable alternative to other construction activities. The construction industry appears to suffer from low productivity growth, and the construction productivity debate concludes that productivity measurement is difficult, not least due to changes in input and output qualities. Building certification schemes are one way to measure sustainability. However, existing schemes focus mainly on environmental sustainability and new construction, while refurbishment differs from new construction. The purpose of this research is to analyse the relation between the theoretical concepts of sustainability and productivity in the context of measurement, and to investigate the performance measures used in housing and office refurbishment projects.This thesis is based mainly on literature reviews in the areas of sustainability, productivity, performance measurement and building refurbishment. The empirical data were collected through eight semi-structured interviews - five with site managers employed by large contractors, and three with general or site managers from small and medium sized enterprises (SMEs). All the interviewees were involved in housing refurbishment projects. The findings of this thesis suggest that current methods of measuring productivity in the construction industry are unsatisfactory. Simple area-based methods and measurement of labour productivity do not capture changes in input and output qualities. Most existing building certification schemes have not taken account of the overall sustainability of the refurbishment process. They reflect the fundamentals of sustainability very poorly, and they tend to hide conflicts between sustainability and productivity. They mostly lack a clear refurbishment focus, even in schemes that are supposed to include refurbishment. Lack of time is a frequent excuse for not measuring productivity on sites, although perceived time pressure might be a symptom of complex resource allocation. SMEs pay little attention to sustainability measurement because they do not see it providing economic benefits, while large contractors invoke lack of client demand.
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| 15. |
- Sezer, Ahmet Anil, 1987
(författare)
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Contractor use of productivity and sustainability indicators for building refurbishment
- 2015
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Ingår i: Built Environment Project and Asset Management. - 2044-124X. ; 5:2, s. 141-153
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Tidskriftsartikel (refereegranskat)abstract
- Purpose– The purpose of this paper is to analyse the use of building refurbishment productivity and sustainability indicators among construction contractors.Design/methodology/approach– Theories of organisational culture and incentives predict that contractor size affects dependency on routines and the implementation of company policies on site. Eight semi-structured interviews were conducted with three general or site managers of small and medium enterprises (SMEs) and five site managers of large contractors involved in housing and office refurbishment projects in Sweden.Findings– Both SMEs and large contractors track resource use on refurbishment sites. Resource use is measured through cost recording systems and a few area-based key indicators. SMEs may have sustainability policies, but routines derived from such policies were weak on site. However, for SMEs, refurbishment technology choices are often made by the client’s designer, and sustainability requirements are included in the contract specifications. For large contractors, sustainability policies are more developed and are reflected in site routines. Large contractors are usually public companies with stakeholders who expect such routines.Practical implications– Contractors that develop strategies for increasing productivity and sustainability can benefit from a deeper understanding of implementation issues. The outcome of this paper is useful while designing new indicators and building certification schemes.Originality/value– Much has been written about key performance indicators for construction, but little attention has been paid to indicators for building refurbishment, or the use of measurement routines.
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| 16. |
- Sezer, Ahmet Anil, 1987-, et al.
(författare)
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Developing Bluetooth communication technologies for safer construction sites: Experiences and learnings
- 2021
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Ingår i: Proceedings of the CIB International Conference on Smart Built Environment, ICSBE. - 9781907240713 ; , s. 140-146
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Konferensbidrag (refereegranskat)abstract
- The construction industry is one of the most dangerous industries when it comes to safety andsituations involving collisions between vehicles and workers are often fatal. Site activities are carriedout simultaneously by skilled workers and machine operators, which makes communication betweenthese groups crucial. Based on a single case study, the aims of this paper are to investigate: (i)problems related to communication on construction sites and (ii) the usefulness of Bluetooth headsettechnology to improve communication. In the first research phase, three semi-structured interviewsrevealed problems related to communication. Respondents identified improvement areas such assound isolation in vehicles, making it difficult to hear, and problems with using sign language whenit is dark or too sunny. Working together with the same person on a regular basis improvescommunication as well as safety and productivity, and interviewees suggested that inexperiencedpersonnel should be mixed in groups with more experienced personnel, which can help them to avoidinjuries and learn safer practices. In the second research phase, Bluetooth headsets were introducedto improve communication between different groups. Data was collected through five rounds of miniquestionnaires with construction site personnel. Feedback from each survey was used to improve theusefulness of the Bluetooth headsets. Analysing patterns from respondents’ suggestions, showed thatthey first complained about the fit and comfort of the headsets, followed by noise isolation,frequency and other additional functions of the headsets. The possibility to add warning signalsenhance the usefulness of Bluetooth headsets, e.g. by increasing the situational awareness andreducing cognitive load of construction workers, making workers more productive while also helpingto avoid injuries.
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| 17. |
- Sezer, Ahmet Anil, 1987-, et al.
(författare)
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Digitalization Index : Developing a Model for Assessing the Degree of Digitalization of Construction Projects
- 2021
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Ingår i: Journal of construction engineering and management. - : American Society of Civil Engineers (ASCE). - 0733-9364 .- 1943-7862. ; 147:10
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Tidskriftsartikel (refereegranskat)abstract
- The construction industry is one of the least digitally advanced industries. Although the industry is project-based, a project-level assessment of digitalization is lacking. The aim of this paper is to develop a digitalization index to assess the degree of digitalization of construction projects. Relying on the outcomes of a workshop with 11 participants and questionnaire responses from 113 site managers in Sweden, four activities; visualized drawings and three-dimensional (3D) models on sites; updated drawings, models, and system documents; created and updated work disposition plans; and updated time resource plans were selected, and a digitalization index enabling a simple assessment of the degree of digitalization of construction projects was constructed based on the degree of digitalization of the data management processes involved in these four activities. The approach to determine the digitalization index was demonstrated in a case study of a new construction project. For future studies, an accurate and simple assessment of the degree of digitalization of projects should increase the opportunities to study the association between the degree of digitalization and project performance. With longitudinal assessments, digitalization trends in the construction industry can be reported.
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| 18. |
- Sezer, Ahmet Anil, 1987
(författare)
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Environmental assessment tools and efficiency in housing and office refurbishment
- 2012
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Ingår i: 28th Annual Conference on Association of Researchers in Construction Management, ARCOM 2012; Edinburgh; United Kingdom; 3 September 2012 through 5 September 2012. - 9780955239069 ; 2, s. 1331-1341
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Konferensbidrag (refereegranskat)abstract
- Most environmental sustainability assessment tools are focused on new constructionwhile refurbishment of buildings presents a different picture. Short term, localenvironmental effects such as noise or dust are more frequent in a refurbishmentprocess since both occupants and neighbours are affected whereas in new constructiononly neighbours might be affected. The purpose of this paper is to provide aframework in order to assess strength and weaknesses of environmental assessmenttools for housing and office refurbishment projects, taking into account practicalaspects, fundamentals of sustainability as well as conflicts between sustainability andefficiency. A review of literatures on sustainability, measurement systems in generaland major environmental assessment tools confirms that these tools focus on energyconsumption, heat insulation, air quality, light, noise, water efficiency and materialconsumption in new construction, but rarely in a refurbishment context. Short term,negative effects during a renovation process are not covered by current environmentalassessment tools. The conflict between local and global effects of sustainablerefurbishment, users' needs, workers' efficiency during the refurbishment process, problems caused by occupants and waste management should be reflected in aframework for indicators to be used in refurbishment projects. Since there areimportant effects on building users involved in most refurbishment processes, moreattention should be paid to the relation between their productivity and both economicand social sustainability.
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| 19. |
- Sezer, Ahmet Anil, 1987-, et al.
(författare)
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Environmental impact of construction transport and the effects of building certification schemes
- 2021
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Ingår i: Resources, Conservation and Recycling. - : Elsevier. - 0921-3449 .- 1879-0658. ; 172
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Tidskriftsartikel (refereegranskat)abstract
- The construction industry is associated with low productivity growth rates and environmental harm and, has a crucial role to play to reach the SDGs adopted by the UN in 2015. Construction logistics offer useful solutions to improve both the productivity and sustainability of the industry. The purpose of this paper is to investigate, in detail, the environmental impact of construction transport and whether the building certification scheme for a construction project has any influence on its transport arrangements. The analysis in this paper is based on a multiple case study of 40 Swedish projects. The results show that construction projects with better environmental ratings generated less emissions from construction transport. However, among the ten projects with highest transport/m2, five were certified. Construction logistics solutions (CLSs) such as terminals and checkpoints are useful in reducing the number of transports, and thereby reducing emissions. But the usefulness of a CLS is influenced by gross floor area and type of project, as well as the phase which the solution is implemented in. This study contributes to a better understanding of construction transport patterns and reducing environmental harm of these transports. The results of this paper are beneficial for construction site managers, logistics consultants and transport companies, helping them to implement CLSs in a more useful way, depending on the phase and type of project.
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| 20. |
- Sezer, Ahmet Anil, 1987
(författare)
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Factors influencing building refurbishment site managers' waste management efforts
- 2017
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Ingår i: Journal of Facilities Management. - 1741-0983 .- 1472-5967. ; 15:4, s. 318-334
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Tidskriftsartikel (refereegranskat)abstract
- Purpose - This paper aims to analyse the factors influencing refurbishment site managers' waste management efforts. Design/methodology/approach - Twenty-seven semi-structured interviews were held with managers from two large contractors involved in housing and office refurbishment projects in Sweden. Also, a web and postal questionnaire survey was sent to 232 refurbishment site managers and received a 34 per cent response rate. Findings - Site managers devise waste management strategies based on environmental inventories and project size. In smaller projects, waste contractors are employed only for physical activities rather than providing advice. Site managers' waste management efforts are influenced by project-related factors, organizational and personal factors, technical factors, industry culture and legislation. The level of contract detail, specific client demands related to waste management and project size are important factors. Practical implications - Policies and guidelines for projects of different sizes should be developed at least for large contractors; scale influences site managers' waste strategies. Waste management efforts in refurbishment projects can be improved by addressing simple technical problems including providing clear labelling of containers and ensuring shelter fromrain and snow. Originality/value - This is a pioneer survey of refurbishment site manager opinions and practices. Inefficient waste management in building refurbishment projects can be costly and harmful to the environment. There are many opportunities to improve waste management efforts.
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| 21. |
- Sezer, Ahmet Anil, 1987, et al.
(författare)
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How to attract knowledge workers: Company size, gender, age and education as moderators
- 2018
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Ingår i: RESER conference: Services in the age of contested globalization.
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Konferensbidrag (refereegranskat)abstract
- Knowledge workers (KWs) are critical for professional service firms of the AEC industry. Scarcity of skilled human resources is a problem and firms must find ways to be attractive in order to recruit, maintain and increase commitment of KWs. The aim in this paper is to analyse how firm size, gender, age and education of KWs influence their attraction to different job characteristics. The data is collected through a questionnaire survey, which was responded by 132 KWs. The results show that KWs of different firm sizes, genders, age groups and education levels are attracted to different job characteristics and the relation between attraction and age or education is not linear.
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| 22. |
- Sezer, Ahmet Anil, 1987, et al.
(författare)
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ICT use in delivery of uncertain and complex project services: the case of building refurbishment
- 2015
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Ingår i: Proc. RESER 2015 Innovative Services in the 21st Century.
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Konferensbidrag (refereegranskat)abstract
- Auto repair, industrial maintenance and surgical services share with building refurbishment an uncertainty associated with the condition of the object that is to be serviced. Here, the aim is to study how the use of various types of ICT support for service delivery depends on the ability to determine the state of artefacts subject to intervention. Relying on theories of technology acceptance, a survey of ICT support in refurbishment covers 16 managers. These were found to prefer usefulness to ease-of-use. 3D scanning of existing buildings was unusual, and this limits the application of integrated digital models in co-production with clients. Simultaneously relying on virtual media and face-to-face contacts appears to be important.
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| 23. |
- Sezer, Ahmet Anil, 1987
(författare)
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Indicators of environmental and productivity performance for building refurbishment projects
- 2013
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Ingår i: 29th Annual Association of Researchers in Construction Management Conference, ARCOM 2013; Reading; United Kingdom; 2 September 2013 through 4 September 2013. ; 2, s. 949-957
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Konferensbidrag (refereegranskat)abstract
- Since the end of the 1990s, much has been written on construction key performance indicators but little on indicators for building refurbishment, although indicators for road and sewage refurbishment are in use. The purpose of this paper is to formulate principles for developing building refurbishment productivity and environmental performance indicators. When starting from traditional productivity measures, also including effects on client productivity, and from environmental sustainability measures, it is necessary to ask why firms rely on performance measures and why they collect certain types of data. Literature in the areas of performance measurement, key performance indicators, sustainability and productivity has been reviewed and applied to a refurbishment context. When developing new indicators for refurbishment projects, it is important to consider practical issues such as resources required to collect data, including both leading and lagging measures, waste management, local, negative disruptions and effects on user satisfaction, consequences of coproduction, changes in input and output qualities and client productivity.
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| 24. |
- Sezer, Ahmet Anil, 1987, et al.
(författare)
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Mätning av produktivitet i ombyggnadsprojekt
- 2016
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- Att mäta produktivitet i ombyggnadsprojekt verkar vara svårare än i nyproduktionen. IT-utvecklingen borde ge möjligheter att förbättra uppföljningen av hur resurser används på ar-betsplatsen. Intervjuer med platschefer och en enkät ligger till grund för rapporten. Dagens mätpraxis går mest ut på att följa upp tidplan och projektbudget. Faktisk resursförbrukning spelar långt mindre roll.Digital strukturerad informationshantering, BIM, gör det möjligt att följa upp ombyggnader bättre. Men än så länge är BIM vid ombyggnad ovanligt, speciellt i mindre projekt. BIM kan hantera byggnaders geometri, fast befintliga ritningar är ofta problematiska liksom laserskan-ning.Jämförelser mellan ombyggnadsprojekt är svårare än i nyproduktionen, eftersom befintliga byggnader ger olika förutsättningar. Enkla mätetal som utgår från renoverad area föreslås i rapporten. Dessutom ges rekommendationer för IT-stöd på arbetsplatserna, krav på hårdvara och systemkrav.
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| 25. |
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| 26. |
- Sezer, Ahmet Anil, 1987-, et al.
(författare)
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Paving the Path towards Efficient Construction Logistics by Revealing the Current Practice and Issues
- 2021
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Ingår i: Logistics. - : MDPI. - 2305-6290. ; 5:3
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Tidskriftsartikel (refereegranskat)abstract
- Multiple deliveries and long turnaround times on construction sites harm the environmentand disturb on-site productivity and safety. The purpose of this paper is to investigate the transportpatterns of construction material deliveries, including turnaround times. In order to investigatethe number of transports and turnaround times, transport data for 13 Swedish construction sites,which were collected with the help of booking systems, were used. By comparing data from the cases,several patterns were observed: (i) very few projects receive deliveries at weekends, (ii) almost allprojects receive 50% of their daily deliveries before 09:00, (iii) long goods, standard euro pallets andlightweight goods (less than 500 kg) are the most common deliveries, (iv) trucks and delivery vansare the most common vehicles used and (v) goods to be handled by crane and lightweight goodsgenerate the longest turnaround time/delivery. This is one of the rare studies revealing currentpractice and issues associated with material deliveries, which is a necessary first step to increaseefficiency of construction logistics. This study shows that it is possible to influence these issues,as some projects performed better than others regarding turnaround times and transport.
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| 27. |
- Sezer, Ahmet Anil, 1987
(författare)
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Refurbishment certification schemes: aspects of productivity and sustainability
- 2014
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Ingår i: Conference Proceedings for World SB14 Barcelona. - 9788469718155 ; , s. 223-231
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Konferensbidrag (refereegranskat)abstract
- Sustainability rating tools can be analysed in a productivity perspective. Government regulations, including taxes and fees that make firms internalize negative environmental externalities, reduce the gap between sustainability and productivity. Productivity measurement methods for new construction are difficult to apply to refurbishment projects, and there is no consensus on measuring the sustainability of refurbishment processes. The purpose here is to investigate how sustainability concepts in building certification schemes for refurbishment are related to productivity, using BREEAM Refurbishment Domestic Buildings and LEED for New Construction and Major Renovations as examples. A set of criteria for analysis is developed here. While this BREEAM scheme has its focus specifically on refurbishment, the LEED version has less that is specific to refurbishment processes. These schemes mainly focus on post-refurbishment assessment. Long-term productivity is related to economic sustainability, and recent refurbishment versions of certification schemes in Germany and Japan recognize more than environmental sustainability.
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| 28. |
- Sezer, Ahmet Anil, 1987, et al.
(författare)
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Site managers’ ICT tools for monitoring resources in refurbishment
- 2020
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Ingår i: Engineering, Construction and Architectural Management. - 1365-232X .- 0969-9988. ; 27:1, s. 109-127
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Tidskriftsartikel (refereegranskat)abstract
- Purpose : The purpose of this paper is to analyse site managers’ ICT preferences for monitoring resource use in refurbishment projects. Design/methodology/approach : Information and communication technologies (ICT) developments for the construction industry are increasing the scope for more efficient planning and monitoring of refurbishment projects. The analysis is based on the unified theory of acceptance and the use of technology model. After a short initial survey, a Swedish web/postal questionnaire has received 78 responses from refurbishment site managers, implying a 34 per cent response rate. Findings : Managerial choices related to ICT depend more on perceived performance expectancy than on effort expectancy. Large projects and larger firms are associated with more extensive ICT use. Site managers see little need to link to refurbishment clients’ ICT systems. Performance expectancy and age are found to influence ICT choices. Practical implications : Site managers play a crucial role in everyday use of ICT tools in the construction industry. The outcome of this investigation is useful for developing digital support, including applications of building information modelling, to improve refurbishment site practices. Originality / value : Much has been written about ICT support for new construction practices, but not much attention has been paid to refurbishment site managers’ media choices.
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| 29. |
- Sezer, Ahmet Anil, 1987, et al.
(författare)
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The construction productivity debate and the measurement of service qualities
- 2014
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Ingår i: Construction Management and Economics. - : Informa UK Limited. - 1466-433X .- 0144-6193. ; 32:6, s. 565-574
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Tidskriftsartikel (refereegranskat)abstract
- Since the 1960s, researchers have provided short-term and long-term explanations for low productivity growth in the construction industry. In retrospect, the main challenge appears to be the measurement of changes in heterogeneous input and output qualities. The aim here is to review earlier construction productivity research and to compare it with more recent approaches to quality measurement used when analysing services productivity, ultimately intending to provide guidance for using performance data from construction projects. Relying on the EU KLEMS database, industries with similar patterns of productivity growth are identified, primarily the business services industry. In services productivity analyses, the attempts to introduce output quality measures reflecting customer satisfaction are particularly interesting, as this creates a link to productivity effects on clients. A conclusion is that it should be possible to use the increasing volume of performance indicator data collected for construction project benchmarking for extending the range of output quality variables. However, resource constraints imply that it is infeasible to base industry productivity statistics on project level data reflecting customer satisfaction and customer productivity effects.
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| 30. |
- Sezer, Ahmet Anil, 1987-, et al.
(författare)
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The transport footprint of Swedish construction sites
- 2020
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Ingår i: IOP Conference Series: Earth and Environmental Science. - : Institute of Physics Publishing (IOPP).
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Konferensbidrag (refereegranskat)abstract
- Earlier studies related to GHG emissions from the construction industry are focusing mainly on impact from the phases of building use and on-site production while neglecting the footprint due to transportation during the production phase. In this paper the aim is to investigate transport footprint owing to material and waste transports to and from construction sites in Sweden, based on secondary data analysis of construction projects. The choice between efficient logistics considering the time pressure in construction projects and logistics with reduced GHG emissions is a difficult one, however previous studies report that with better logistics solutions and planning, both goals can be achieved. This study contributes by delivering a better understanding of the transport patterns of construction projects as well as the GHG emissions from construction transport. Among the studied projects, 2450 transports/project and 31 transports/flat are noted. Transport footprint from the new flat production at 2017 in Sweden is estimated around 422800 tonsCO2. Increasing the understanding of the transport patterns will lead to better policies to control traffic and better use of construction logistics setups for different phases of projects. Since the main limitation here is data quality and lack of data, further research aims to improve data collection, investigating possible data sources and their quality.
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| 31. |
- Wernicke, Brian, et al.
(författare)
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Introduction of a digital maturity assessment framework for construction site operations
- 2023
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Ingår i: International Journal of Construction Management. - : Taylor & Francis. - 1562-3599 .- 2331-2327. ; 23:5, s. 898-908
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Tidskriftsartikel (refereegranskat)abstract
- Digital technologies as enablers for more sustainable improvements of construction site processes contain interesting opportunities. Little is known how to, in a structured way, assess and implement digital technologies to support development and improvement of construction site operations. Maturity frameworks assess the status quo and guide decision makers to potential improvements. The purpose of this research is to develop a framework for assessing digital maturity of construction site operations. Literature and empirical data were utilized to develop and validate the framework. The framework contains assessment areas that specify the areas of potential improvements, maturity levels that indicate the progression towards maturity, assessment criteria that define organizational aspects of the assessment, and an assessment procedure to guide assessors. The maturity assessment framework contributes potentially to systematization of evaluative processes creating opportunities for a change within processes and organizations enabled by digital initiatives and to long-term improvements on project portfolio level.
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