Collaborative BIM Models with Measurements

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21. November 2025, 14:17 o'Clock

Article: Collaborative BIM Models with Measurements

Initial Situation & Problem Statement

  • Since 2017, the DB InfraGO Passenger Stations division has applied the BIM methodology, utilizing models that are also employed during the planning phases of construction projects for transport stations.
  • However, the consistent use of BIM models and their associated information is not yet fully carried over into the construction phase. The discontinuity currently occurs during the approval phase, as the derivation of conventional plans remains the sole method for project stakeholders to verify measurements.
  • Consequently, plan derivation is still required in addition to the model with considerable effort, resulting in duplicated and unnecessary work. As a result, continuous use of BIM models throughout the project lifecycle is not maintained.

Target State & Potential Solutions

  • The target state envisions that dimensions and dimension chains can be represented as 3D annotations within BIM models and made accessible to all project participants via coordination software (e.g., Desite, Navisworks, BIM Collab).
  • Dimensions should be visible in the sectioning tools of BIM models, with real-time updates when navigating through sections.
  • Dimension chains are to be generated or derived from information or geometry inherent to components or families within the models.
  • Dimension chain creation should be enabled within coordination software through dedicated software modules or plugins.
  • Alternatively, dimension chain visualization can also be facilitated using *.ifc files.

Opportunities

  • Extensive use of BIM models by all project participants beyond the planning phase, enabling efficient internal and external reviews, construction supervision, and execution.
  • Elimination of the manual plan generation process from BIM models.
  • Considerable savings in resources (time, costs, personnel) benefiting infrastructure by avoiding redundant work.

Risks

  • Incorrect generation or display of dimensions may lead to errors in construction projects.
  • Regulatory authorities may not update relevant standards and continue to require parallel production of conventional plan documents, despite BIM being mandated.
  • Project participants may lack sufficient or appropriate training in the use and application of BIM models.

Stakeholders

  • Design Teams
  • Project Management
  • BIM Specialists
  • Regional Technical Experts and Reviewers (TBQs)

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