GERMAN ROAD MAP BIM

The road map for digital design and construction was developed by the German Ministry of Transport and Digital Infrastructure (BMVI) in 2015 as a response to the introduction of modern IT processes and technologies for the design, construction and operation of assets in a built environment. It was the German response to showing the way to achieve the widespread use of BIM in the construction sector, developed in the US, East Asia, Scandinavia, Great Britain and the Netherlands. The public sector was defined as a space to indicate patterns for the entire industry and to develop best practices based on BIM methodology. The map indicates three available BIM dedicated solutions: open IFC data format, OKSTRA data exchange format and Road Object Catalog. Implementations are divided into three phases:

2015 - 2017 Preparatory Phase

2017 - 2020 Phase of Extended Pilot Projects

2020 Admission Phase to New Projects

The map is based on the potential of BIM methodology. The authors indicate that the method offers three main advantages: increasing the accuracy of the project while maintaining cost certainty, optimizing the cost of life of the object, increasing the quality of documentation. Increasing project accuracy and cost certainty: can be obtained by simulating cost data at any time of the project, or after its completion as part of introduced changes. Control over the changing budget has been made possible by BIM. Project accuracy was indicated as obtainable by automating collision and error detection while all project pages have access to the current version (created in real time). Optimization of the object's life costs: attention was drawn to the higher costs of maintaining the objects than their construction, therefore the main weight of the budget simulation should be shifted to the exploitation phase, here BIM gives the possibility to perform simulations stretched in time to clarify the budget in the building's life cycle, in addition handing over the digital twin of the building to the investor allows to minimize the loss of knowledge about the building and thus allows optimization of renovation and maintenance costs. Increase in the quality of documentation: possible to obtain by the customer based on easier orientation (spatial data visualizations) and thus the readability of the project, gives the opportunity to indicate the necessary modifications to the documentation on the public procurement market, where the key criterion for the selection of the contractor is the price of the project.

The roadmap based the requirements for projects necessary to be specified by the contracting authority under the tender specifications in three chapters: Data, Processes, Skills. The data must be specified by the contracting authority in order to define the framework of the project, its detail and decision-making possibilities. BIM5D was indicated horizontally as a reference. Processes are defined in the BEP - project implementation plan, where BIM manager determines the technologies used, roles and interactions of all project participants, processes, function and interface (meetings, data exchange, decision authorization etc.) A common CDE data environment must be established at the beginning of the project by the contracting authority, although it is possible to transfer the technical part of the specification to the contractor with full activity of the client's decision. The data standard is based on the Lean Project, VDI 2552 and ISO 19650, and open data formats. The skills necessary to apply the BIM methodology were indicated as obtainable through support (including financial support) of the contracting authority and the contractor, specifying the need to gain experience and skills by members of the construction process on their own, as a parallel operation.

The area of ​​activities, with the implementation of BIM, has been identified as the public sector, where it is necessary to develop BIM-based order specification catalogs for various infrastructure and buildings. The private sector was tasked with developing the best methods (based on IFC) for cooperation and data exchange without losing information. The next indicated in the area of ​​activities is the area of ​​education, as part of academic education and the activities of professional associations, as an area of ​​acquiring skills that meets the requirements of the modern construction sector.

All items indicated in the road map have been defined as possible to be introduced in current law in Germany.

Sources:

https://pixabay.com/

https://www.bmvi.de/SharedDocs/DE/Publikationen/DG/roadmap-stufenplan-in-engl-digitales-bauen.html