• Clear communication of construction seqeunce to all involved stakeholders

  • Early and ongoing co-ordination of interfaces, between disciplines, contractors + 2nd tier suppliers

  • Automatic link between model and programmes resulting in reliable information

  • Comparison of various schedule phasing options resulting in best sequence

Heathrow Airport, Terminal 2B

London, UK
Status: Completed, 2014


  • Instruction to implement 4D modelling from BAA issued to Balfour Beatty

  • Scoping document presented an initial plan of work and the intended development approach for the 4D model

  • 4DModel is reviewed on a week-by-week basis

  • 2nd tier supplier was made fully aware of the planned activities of other supplier’s works using the model



The project implemented detailed 4D Construction Modelling in early 2010 with a view to both effectively visualise the planned construction sequence and provide a support tool to understand the overall construction/logistics management requirements at various levels of detail.


First stage consists planning interface coordination, assist overall programming and planning and so on. Second phase consists of 4D planning to support overall construction Management activities related to logistics, temporary works and construction plant management in 6 weekly and 2 weekly planning meetings, review alternative sequencing approaches and methodologies and highlight potential scope gaps/opportunities. The process of model management was an ongoing work stream includes the development of the linked construction schedules, the inclusion and optimisation of the developing 3D design models, the synchronisation of the 4D model and finally the interactive presentation to the various audiences as required.