TY  - CONF
TI  - Transformation From Design-Bid-Build to Design-Build Contracts in Road Construction
C1  - Chennai, India
C3  - 26th Annual Conference of the International Group for Lean Construction
SP  - 34
EP  - 45
PY  - 2018
DO  - 10.24928/2018/0394
AU  - Kalsaas, Bo Terje
AU  - Hannås, Gøril
AU  - Frislie, Grethe
AU  - Skaar, John
AD  - Professor, Dr. Ing, Faculty of Engineering and Science, Department of Engineering Sciences, University of Agder, N-4846 Grimstad, Norway; e-mail: bo.t.kalsaas@uia.no
AD  -  Associate professor, PhD, Faculty of business and law, Department of working life and innovation, University of Agder, N-4846 Grimstad, Norway; e-mail: goril.hannas@uia.no 
AD  - Research Assistant, M.Sc, Faculty of business and law, Department of working life and innovation, University of Agder, N-4846 Grimstad, Norway; e-mail: grethe.frislie@uia.no 
AD  - Assistant professor, M.Sc., Faculty of Engineering and Science, Department of Engineering Sciences, University of Agder, N-4846 Grimstad, Norway; e-mail: john.skaar@uia.no
AB  - This article was triggered by a public client opting to change contracting strategy on a pre-designed 4-lane motorway project from design-bid-build to design-build contract. The goal for the client is to build roads cheaper and faster with the greatest possible economic benefits for society. In the article, we ask: Which changes associated with the transition from a design-bidbuild to a design-build contract can be identified in the contractual relationship between the public developer, contractor and subcontractors? The article focuses on changes in relation to constructability, construction time and costs, and discusses the issues of quality and customer value. The study is theoretically related to the principal-agent theory and transaction cost theory, where the threat of opportunistic behaviour is central. This is also seen through the lens of the Lean Construction triangle, which focuses on the need for harmonisation between commercial element in the contract, organisation and production. We analyse the case in relation to three propositions: 
 Design-build offers incentives that result in better constructability than design0bid-build contracts. 
 Design-build results in lower production costs and faster construction than design0bid-build contracts.
  Quality and customer value come under pressure in design-build contracts. 
The first proposition seems to be confirmed by the empirical analysis. Production cost is, however, not the same as the price for the client. It is more uncertainty related to the third proposition. An important finding is that the developer’s change in strategy seems to result in a radical change in working conditions for the consulting design and engineering companies, as well as to a great degree for the head contractor. A strong relationship between the contractor and consulting engineers is especially important to ensure success in terms of execution, and we find indications that alliances have been formed between the parties. 
KW  - Contract form
KW  - constructability
KW  - cost
KW  - progress
KW  - customer value
PB  - 
T2  - 26th Annual Conference of the International Group for Lean Construction
DA  - 2018/07/18
CY  - Chennai, India
L1  - http://iglc.net/Papers/Details/1558/pdf
L2  - http://iglc.net/Papers/Details/1558
N1  - Export Date: 18 April 2024
DB  - IGLC.net
DP  - IGLC
LA  - English
ER  -