| 1. |
- AlNasseri, Hammad Abdullah, et al.
(author)
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A taxonomy of planning and scheduling methods to support their more efficient use in construction project management
- 2016
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In: Journal of Engineering, Design and Technology. - Bingley : Emerald Group Publishing Limited. - 1726-0531 .- 1758-8901. ; 14:3, s. 580-601
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Journal article (peer-reviewed)abstract
- Purpose: The implementation and control processes of project planning and scheduling involve a wide range of methods and tools. Despite the development and modification and integration of the project management theory with newer scheduling approaches in particular, practitioners’ views on the efficiency and effectiveness of these methods and tools differ. This situation can be attributed in part to a lack of understanding of the most appropriate basis for implementing these methods and tools. This study, therefore, aims to overcome this deficiency by conceptualizing and adopting a taxonomy of planning and scheduling methods.Design/methodology/approach: The study is based on a review and discourse analysis of the literature covering a large number of theoretical and empirical studies. The underlying theories of various planning and scheduling methods were analyzed with respect to the taxonomy criteria adopted in the study.Findings: Using the taxonomy, the key characteristics of planning and scheduling methods considered in this study were identified and interpreted. These included concepts and theories; key features; suitability and usability; and benefits and limitations. Overall, the findings suggest that project managers should consider taxonomy as a support tool for selecting and prioritizing the most appropriate method or combination of methods for managing their projects. Recommendations include the need for more advanced or multi-dimensional taxonomies to cope with the diversity of project type and size.Originality/value: The results of the study allow project managers to improve their current practices by utilizing taxonomy when considering the implementation of planning and scheduling methods. Moreover, taxonomy can be considered as a tool to promote learning on the part of those less experienced in planning and scheduling. Taxonomy can be considered as an initial platform for further research in this area. © 2016, © Emerald Group Publishing Limited.
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| 2. |
- Andersson, Niclas, et al.
(author)
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Construction Innovation Systems - A Sector Approach
- 2005
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In: Understanding the Construction Business and Companies in the New Millennium. - Helsinki : VTT – Technical Research Centre of Finland & RIL – Association of Finnish Civil Engineers. - 9525004627 ; , s. 203-213
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Conference paper (peer-reviewed)abstract
- Recent studies depict the general need to increase and improve innovation in the construction industry. Innovation processes are traditionally described and analysed either on a macro level or a micro level. Production in construction is basically project oriented, as opposed to manufacturing industries for which most of these theories are developed. It is not fully sufficient to study innovation from a micro or a macro level due to the effects of the project orientation and the large number of actors in the construction industry. The objective of this paper is to present a model of the construction innovation systems from a sector systems approach. The study rests upon findings in the area of innovation systems in general and construction innovation systems in particular on one hand and construction sector systems analysis on the other. This paper presents arguments for the development of activity based innovation systems at a construction sector level.
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| 3. |
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| 4. |
- Chen, Le, et al.
(author)
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Procurement and Governance Choices for Collaborative Infrastructure Projects
- 2018
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In: Journal of construction engineering and management. - Reston, VA : American Society of Civil Engineers (ASCE). - 0733-9364 .- 1943-7862. ; 144:8
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Journal article (peer-reviewed)abstract
- Collaborative approaches to infrastructure procurement are increasingly popular around the world due to their potential to provide improved project performance compared with more traditional approaches. The problem is that project outcomes continue to be unpredictable. Previous research has shown that this is the case regardless of whether the chosen procurement approach is based on price or non price selection of the project team. This is a major choice that clients make, but the presented research shows that governance choices for project execution are more important. This is significant because clients tend to focus more on procurement choices and typically do not differentiate governance based on those choices. This needs to change, and the authors show that optimal governance configurations vary on the basis of the chosen type of team configuration. For example, three specific governance arrangements for workshops are highlighted for single teams, and two specific governance arrangements for risk/reward sharing are highlighted for multiple teams. This study identifies governance actions that are associated with superior time and cost outcomes on collaborative infrastructure projects in Australia run by experienced public-sector clients under the two procurement scenarios. Based on a survey of 320 senior managers, independent sample t-tests were conducted to compare the application of governance actions among three distinct groups of projects, based on type of team selection and type of project outcome. The study provides evidence of the most effective approaches to project governance in a country that is a world leader. The results provide much needed recommendations for improved project performance based on large-scale quantitative analysis, which before now has not existed. Overall, the study recommends more attention be paid to noncontractual governance under both approaches to team selection, although the specific actions recommended vary. © 2018 American Society of Civil Engineers.
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| 5. |
- Eriksson, Per-Erik, et al.
(author)
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Managing short-term efficiency and long-term development through industrialized construction
- 2014
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In: Construction Management and Economics. - Abingdon, Oxon : Informa UK Limited. - 0144-6193 .- 1466-433X. ; 32:1-2, s. 97-108
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Journal article (peer-reviewed)abstract
- There is a strong need for a productive and innovative infrastructure sector because of its monetary value and importance for the development of a sustainable society. An increased level of industrialization is often proposed as a way to improve efficiency and productivity in construction projects. In prior literature on industrialized construction, there are however neither many studies addressing more long-term aspects of innovation and sustainability nor studies within the infrastructure context. Organizational theory suggests that firms need to be ambidextrous and focus on both long-term exploration of new knowledge and technologies and short-term exploitation of current knowledge and technologies, in order to achieve sustainable development. Therefore, an investigation of how both short-term exploitative performance objectives and long-term explorative development can be addressed when implementing industrialized construction in infrastructure projects was conducted. A case study consisting of four infrastructure projects shows that the main drivers for increased industrialization are of an exploitative nature, focusing on cost savings and increased productivity through more efficient processes. The main barriers to increased industrialization are however related to both explorative and exploitative activities. Hence, by managing the identified barriers and explicitly addressing both exploitation and exploration, industrialized construction can improve both short-term efficiency and long-term innovation and sustainability.
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| 6. |
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| 7. |
- Hansson, Bengt, et al.
(author)
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Byggprocessforum för en effektivare process
- 2005
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Reports (other academic/artistic)abstract
- The Construction Process Forum was initiated by the Construction Council. The Construction Council is an organisation which supports cooperation between universities and the construction industry. The Construction Process Forum was formed through that chosen key persons were asked to come up with suggestions on how to create a more effective construction process plus how to improve the image of construction. The aim was also to increase the awareness among the participants of Construction Process Forum. This report narrates the result of one years work within the Construction Process Forum. The focus of this first year was the construction site and the changes needed of the construction process to create better conditions for the construction site. The Construction Process Forum ended with the formulation of a plan of action for the development of construction.
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| 8. |
- Hjort, Bengt, 1949-, et al.
(author)
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Adoption of a Working Environment Innovation : “Rollout Bar Carpets”
- 2015
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In: Proceedings CIB W099 Belfast 2015. - Downpatrick : EEI Publishing. - 9781909854017 ; , s. 417-425
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Conference paper (peer-reviewed)abstract
- Work environment problems associated with reinforcement work at constructions sites are often great and difficult. This applies especially to the ergonomic situation. The situation is particularly difficult in connection with reinforcement in horizontal structural elements such as slabs and foundation slabs on the ground, where several of the most difficult load factors occur. Since about 15 years there is an innovation (rollout bar carpets) available on the Swedish market. This innovation can many times be used at these structural elements and gives both time savings and working environmental benefits. Despite this the innovation has been and is adopted rather seldom. The reasons for this have been studied through semi structured interviews with with design-engineers, site-managers, workers and persons working at a reinforcement manufacturing company. The main results from the study are as follows: i) Rollout bar carpets have a potential of improving both work environment and time consumption on site. However, this may not be enough in itself to achieve a general adoption of the technology. ii) The implementation and adoption of innovations in construction may be more complex than the novelty of the innovation may suggest. This is due to the contextual delimitations of a project-based industry and the different roles in the construction process.
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| 9. |
- Hjort, Bengt, 1949-, et al.
(author)
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Introduction of sustainable low-cost housing. Experiences from a demonstration project viewed from an innovation diffusion perspective
- 2016
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In: Proceedings of the CIB World Building Congress 2016. - Tampere : Tampere University of Technology. - 9789521537455 ; , s. 431-442
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Conference paper (peer-reviewed)abstract
- The purpose of the study is to describe and analyse, from an innovation diffusion perspective, factors important when using demonstration projects as a tool for introduction of sustainable low cost housing. The study is focused on Ethiopia, a country with big challenges as regards population increase, lack of resources, deforestation, land erosion and a general need for better and sustainable housing, especially in rural areas. The study is furthermore focused on the adobe technology as a more sustainable alternative to the traditional building technology which is very timber consuming. Many attempts have been made to introduce this technology with the use of demonstration buildings. A great part of these attempts have failed, some have been successful. In order to study and discuss important factors in connection with the use of demonstration buildings, a project executed some years ago in southern Ethiopia has been analysed. The study is based on findings collected during and after the erection of these buildings mainly through practical tests, interviews and observations. From a technical point of view this demonstration project was successful. It was possible to develop an appropriate production technology and the result was buildings with a good standard and good function. Experiences up to now indicate a good durability. From an innovation diffusion perspective however the demonstration buildings have not fulfilled their purpose. The impact in the region seems to be very small. The conclusion in the paper is that the reasons behind this failure mainly are: (1) Lack of clear and visible relative advantage in comparison to the traditional building technology. The supply of construction timber in the area in question is still good. (2) Lack of a champion advocating the technology by using the demonstration buildings and thereby giving the message to the society that the technology is valuable and trustworthy. (3) Lack of continuity in the demonstration efforts, as a result of the lack of a champion.
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| 10. |
- Hjort, Bengt, 1949-, et al.
(author)
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Introduction of Sustainable Low-cost Housing in Ethiopia – an Innovation Diffusion Perspective
- 2015
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Conference paper (peer-reviewed)abstract
- As many developing countries, Ethiopia is facing a lot of problems. A high population growth and erosion caused by deforestation can be considered the most serious one. The need for housing is increasing while deforestation causes a lack of sustainable and appropriate timber for construction. A challenge facing the Ethiopian society is thus to give a growing population opportunities to obtain decent, sustainable and affordable housing. One way to achieve this is to use adobe technology, which means that houses are built with sun-dried clay blocks. Used correctly, the adobe technology has many benefits. The main advantages are that the technique is relatively simple, local materials can be used and that timber demand is low. Because of this, the technology also has many advantages from a sustain ability perspective. In Ethiopia, most attempts with the adobe technology have been less successful without lasting impacts. In this paper, the reasons for this are discussed. Six cases where adobe has been used are described an analysed. Many factors have been identified as being important for the diffusion of the technology, i.e., a strong champion, market and risk factors, cultural factors creating stigma and basic training. © 2015 Published by Elsevier B.V.
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