A problem often encountered by contractors is that the information provided is not always equal to the information needed in the Building Information Model (BIM). Somewhere between the BIM design manual and the final BIM information is omitted. The purpose of this paper is to identify the source of the information loss. Therefore, the relation between model information requirements in BIM design manuals, tender documents and the final BIM was investigated. The research included a literature study, a document study and a case study. In detail, three discipline models (road, construction and lighting) were investigated from a design-bid-build project in Norway. The results showed that the requirements were mostly complied with (sometimes with a pragmatic approach). However, the requirements represent the client's focus on the design and the in-use phase. Whereas the contractor's focus on the production phase is not given the same attention. From that perspective, the results are twofold; 1) some of the required information is not provided in an exact and reliable form, while 2) resources are spent on providing not required information. This applied research showed that design manuals should reflect new project delivery methods to support lean principles for all parties involved in the project.
BIM design manual, infrastructure, lean construction, waste, standardization.