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- Forslund, Helena, 1964-, et al.
(författare)
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Challenges in closed loop supply chain for window glass
- 2021
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Ingår i: Proceedings from the 33th Nofoma conference. - : Nordic Logistics Research Network.
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Konferensbidrag (refereegranskat)abstract
- PurposeEven if glass is 100% recyclable, only 1% of window glass is currently handled in closedloop supply chains (CLSC) in Sweden, causing unnecessary environmental impact and indicating the existence of challenges. The purpose of this article is to increase the knowledge on challenges for applying closed loop supply chains (CLSC) for window glass.Design/methodology/approachBased upon a literature review, a first framework of challenges in different types of CLSC for window glass is developed. The challenges are complemented, elaborated and validated in two workshops with glass experts and construction stakeholders respectively, followed by interviews with experts on glass recycling.FindingsFour different types of CLSC are identified. Many window glass CLSC design challenges in material and information flows are identified; the lack of large-scale actors, lack of general and specific knowledge, lack of business models, uncertain product quality and lack of promotion for window glass CLSC. The literature focuses more on operations and control challenges, as compared to our empirical findings.Research limitations/implicationsThe developed framework structures and exemplifies challenges, which implies expanded CLSC knowledge in a specific setting. Both the model and the identified CLSC types are contributions to the CLSC literature. A research agenda is also presented.Practical limitations/implicationsPractitioners can learn from and mitigate the challenges. The research agenda indicates andassists in how. This can lead to a higher recycling rate of window glass.Originality/valueVery limited research on CLSC for the recycling of window glass is identified, thus the study demonstrates originality.
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| 5. |
- Johansson, Jimmy, 1978-, et al.
(författare)
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Balancing the production flow in prefabrication of wooden houses
- 2018
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Ingår i: Tools for sustainability. - : Forest Products Society.
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Konferensbidrag (refereegranskat)abstract
- The industrialization of wooden house building processes from traditional on-site production to off-site prefabrication is challenging, concerning the possibility of effective handling of numerous product variants, where each house is more or less unique. To obtain high productivity in the production, a well-balanced flow with minimization of waste is of great importance. In Sweden, many off-site house producers are in the starting phases of introducing advanced automation technologies in their production processes and the need for a more detailed process control therefore increases. In previous studies, the installation of windows has been identified as a demanding step in the prefabrication process, since it often creates a bottleneck i.e. the most overloaded part of process (Slack et al., 2016) and thus negatively affects the cycle-time and a balanced production flow.This study aims to understand, how the effectiveness of windows installations could be improved. By using a multiple case-study methodology, processes of several companies are compared and discussed. Further, suggestions for improvements are made for one case company. The results show that a replacement of the windows installation could (a) shorten the cycle-time of one wall by more than 10 %, (b) reduce the queueing time for the entire wall assembly process by more than 48 % and consequently (c) help to create a more balanced production flow.
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| 6. |
- Lindblad, Fredrik, 1971-
(författare)
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A Case Study of Växjö Municipality’s Actions to Increase the Construction of Wooden Multi-family Buildings
- 2022
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Ingår i: Journal of Civil Engineering and Architecture. - : David Publishing Company. - 1934-7359 .- 1934-7367. ; 16:5, s. 235-246
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Tidskriftsartikel (refereegranskat)abstract
- Sweden has a housing shortage, which the Swedish authorities expect to continue until 2025. Producers of wooden multi-family houses have a relatively small market share in comparison to traditional building materials. The limited capability to fulfil the increased building demand also restricts the possibilities for development towards innovation, bio-economy and sustainability. The municipalities in Sweden have responsible for planning of the building development in their region based on their projected requirements and strategies. Combining this with a desire to develop sustainable building solutions based on wood increases the complexity. Currently, public building developments are achieved through the public procurement act or the land allocation activity, dependent on their development strategy. This normally involves the development of local strategies regarding, e.g. design, material choice and geographical development. By identifying market drivers enables improved market entry activities related to public building initiatives using wood-based solutions. Hence, by improving transparency in the land allocation activity generate enhanced possibilities for the companies to respond successfully to the requests submitted by the municipalities. This knowledge is used to better understand the required strategic development for the companies, the government and the municipalities to increase the use of sustainable building materials in Swedish multi-family housing projects.
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| 7. |
- Lindblad, Fredrik, 1971-, et al.
(författare)
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A comparative study of the environmental impact from transportation of prefabricated building elements using wood or concrete
- 2019
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Ingår i: International Journal of Engineering and Technology. - Eskişehir : Anadolu University. - 1793-8236 .- 1793-8244. ; 11:3, s. 154-161
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Tidskriftsartikel (refereegranskat)abstract
- As many as 240 of Sweden's 290 municipalities estimated that there existed a housing shortage within their region. Therefore, many homes are required to be built in a relatively short period to fulfil the demand. Production is required to take into consideration sustainable building solutions to reduce climate impact. Hence, logistics must become more efficient to contribute to an environmental solution, and the use of transports should be examined reducing the effect of heavy vehicles to meet the climate objectives.The focus of this study is to identify differences between the transportation of materials for building projects based on wood or concrete. Different key performance indicators were derived from the collected data and presented in this study, which resulted in two formulas focusing on transport- and environmental impact. The KPI’s indicates that the weight of the load does not have an important impact on the amount of emitted CO2, but it is the number of transports associated with the projects that are the main problem regarding emissions and environmental impact. Hence, the number of transports and the amount of CO2 emissions can be calculated by the support of the formulas derived from this study.
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| 8. |
- Lindblad, Fredrik, 1971-, et al.
(författare)
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A Comparison between Architects' and Residents' Perceived Living Quality in Wooden Multifamily Houses in Sweden
- 2020
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Ingår i: Forest Products Journal. - : Forest Products Society. - 0015-7473. ; 70:4, s. 462-468
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Tidskriftsartikel (refereegranskat)abstract
- There is currently great interest in the production of wooden multifamily houses in Sweden, due to increased environmental concern combined with a demand for modern building solutions. The focus in industry and academia alike has been dominated by new innovative building solutions along with increased industrialization of the building process, aiming to improve the overall building quality and the profitability for the involved actors. However, little attention has been paid to what the residents perceive as living quality. Understanding residents' perceived living quality—compared with architects' perceptions—allows the possibility of adjusting the modern building solution of wooden multifamily houses in order to meet residents' actual expectations and, in the long term, to increase the wood-building industries' market share.The purpose of this article is to compare how residents and architects perceive living quality and whether these stakeholders' perceptions differ regarding building type and material choice (i.e., multifamily wooden or concrete buildings). A survey was sent out to 485 respondents in Sweden to gain insight into living quality perceptions. The results revealed discrepancies in what is perceived to be important in new housing development, although neither group was willing to pay more to live in a wooden building compared with a concrete building.
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| 9. |
- Lindblad, Fredrik, 1971-, et al.
(författare)
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Assessing corporate economic distress : a study of the wood construction industry
- 2017
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Ingår i: Pro Ligno. - : PRO LIGNO Foundation. - 1841-4737 .- 2069-7430. ; 13:4, s. 594-601
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Tidskriftsartikel (refereegranskat)abstract
- Wood buildings are considered as a viable option to support the effort minimizing the current housing shortage in Sweden. Companies trying to develop into this industry are needed to increase the use of prefabricated wooden elements, volumes or modules in an industrialized way. Suitable companies to make this development could be found amongst firms producing wooden single-family houses. These companies currently act on a highly competitive market with many companies offering relatively homogeneous products or services. Therefore, differentiation towards the wooden multi-family house industry could be considered as a long-term strategy, minimizing the economic distress and improving the survival of the company.The study is aiming at describing the development of economic distress and market concentration ratio in the Swedish industry for wooden single-family houses, for an eleven-year period from 2005 to 2015. The companies could be helped to understand, if and how the market concentration ratio and the economic distress are connected, linking company size to economic stability and efficient resource utilization. This will be conducted by applying Altman’s Z’-score model, grouping firms into a risk, a grey or a safe zone, combined with calculating the industry structure by means of the concentration ratio model. The required data were collected from the annual reports of the 51 relevant firms in the industry.
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| 10. |
- Lindblad, Fredrik, 1971-
(författare)
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Barriers in the Public Procurement Process : Restricting Long-Term Sustainable Construction of Wooden Buildings
- 2019
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Ingår i: Scandinavian Journal of Public Administration. - : School of Public Administration. - 2001-7405 .- 2001-7413. ; 23:2, s. 13-32
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Tidskriftsartikel (refereegranskat)abstract
- The municipalities control the planning of new housing projects in Sweden, basing their decisions on the general requirements and future strategic expectations. The activity is managed through the Public Procurement Act or the land allocation process depending on their development strategy. It involves the development of local strategies regarding design and geographical development, as well as the development of suitable procurement methods. Therefore, having the ambition to develop sustainability by increasing the use of wood building solutions imposes new challenges on the procurement process performed by municipalities in Sweden. The aim of this study is to identify ways to overcome barriers in the public procurement process for new building developments based on land allocation projects managed by Swedish municipalities, enabling an increase in wooden multifamily houses in Sweden. The study is based on direct participation at a municipality performing this activity, combined with interviews including municipalities and developers involved in the procurement process using land allocation. The result shows discrepancies in how the municipalities and developers perceive the land allocation activities. Furthermore, national standards, equal evaluation methods and a defined procurement process have been identified as drivers towards an efficient activity, which currently acts as a barrier to the development of wooden multifamily houses.
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