Sammendrag
Do different categories of building owners’ use different project models? Are the project models differentiated according to the buildings’ character and type of building project? Are there connections between the buildings’ total costs and type of contracts used? What are the most important reasons for choosing the particular project models? Are there any connections between the building owner’s specific and measurable requirements and the building project’s value creation for owners and users? Are there connections between project models; i.e. the combination of tender, contract and building contract, and the project’s outcome? The present research is based on a cross-sectional large N observational design. Data were collected through a national online survey in Norway from June to September 2016 (N = 1034). The questionnaire was developed in cooperation with important stakeholders and pretested on various actors involved in building projects. The respondents (80 per cent men and 20 per cent women with an average of 15 years’ professional experience) are representative for those involved in Norwegian commercial and public sector building projects. The data have been analysed with IBM SPSS version 23, mainly through descriptive statistics and cross table analysis. Different categories of building owner use different project models. Project models are differentiated according to the buildings’ character and type of building project. There are connections between the buildings’ character and total costs and the type of contracts used. There are connections between the building owner’s specific and measurable requirements and the building project’s value creation for owners and users. Finally, there are connections between project models and outcome. This is a large N survey among Norwegian public and private sector professionals involved in building projects. The results may have a slight success bias since more than 50 percent of the projects were reported to perform above average. Further research is needed, preferably similar studies in other countries to facilitate comparison across borders and cultures. The present research is one of few large N surveys among Norwegians in private and public sector organizations involved in building projects. The findings provide a first glance at factors explaining successes and failures in construction projects.
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