The various exchanges with the actors involved in a BIM supported infrastructure project (engineering specialists, contractors, operators, publishers, surveyors, economists, project owners) have shown a significant disparity in terms of motivation, understanding, acceptance and maturity with regard to digital techniques and innovations, as well as the contributions and changes they could generate.

Use case 5, entitled “Cost control through modelling”, brought together eight partners. These representatives of actors in the sector shared their standard practices for estimating, costing, monitoring and running an infrastructure project from a financial point of view.

The objective set by the working group was to understand how BIM will be able to model and manage the total cost of an infrastructure during the various phases of a project:

  1. Estimates, price studies
  2. Cost monitoring during the construction phases
  3. Cost monitoring during the operating and maintenance phase

All the elements, which are presented in the UC5 phase 1 deliverable, start from the assumption that a BIM forms the backbone of data exchanges between the various parties involved and the project phase.

MINND_phase1_results_uc5_01Four reports have been drafted as part of phase 1. They present a map of the various parties, the most common financial organisation structure for the design/construction phase, the contractual interactions arising from a law or contract, and the tools available on the market to meet the needs of this phase.

A review of the state of the art summarised the lessons learned as regards the development of IFC alignments, Levels of Development (LOD), standards already in existence or under development, and research on price bases. Although IFCs have already existed for several years in the fields of buildings and bridges (the initial version, which remains incomplete, dates from 2004), the extension IFC alignment are still being developed. In phase 1, it was not possible to analyse the new  standard BIMetre for the exchange of quantity surveying information, which was identified as being in the draft stage.

Design phase

Construction phase

Operating and maintenance phase