Competitive dialogue (CD) is a seldom-practised procurement procedure in Norway. The Norwegian Public Roads Administration (NPRA) plans to use it in complex and mega infrastructure project in the future. This study investigates how CD has contributed to the implementation of lean in the public sector by answering the following two research questions: What are the...

At IGLC 2014 a Lean Construction Maturity Model (LCMM) was introduced and at IGLC 2015 its validation was presented. The LCMM offers organizations in the AEC Industry to obtain a systemic and holistic overview of their current state of LC maturity and provides them with support in their maturation. This paper intends to motivate its...

Breaking down project information via different breakdown structures has been a successful way of managing and controlling construction projects with levels of efficiency and effectiveness otherwise unimaginable to achieve over the past decades. This paper introduces underlying concepts of a method that allows automatic grouping of models so that the model breakdown structure (MBS) matches...

In complex socio-technical systems such as construction projects, the lean emphasis on waste reduction can contribute to the depletion of necessary slack for managing unexpected variability. This risk is amplified by the absence of a solid lean theory on slack and on how to manage the trade-off between slack and efficiency. Furthermore, lean focuses on...

The hiring of subcontractors for construction is widely adopted in the construction industry, so a good relationship between the subcontractors and contractors is essential for the success of the project. However, there is still a need to analyze how the subcontractors can improve their performance based on a collaborative planning process and their relationship with...