What is 4D Building Information Modelling?
Building Information Modelling (BIM) has been with us for a number of years. In essence it is a means by which digital information on the design and construction of buildings can be shared among those responsible for delivery, as well as end users.
4D BIM is the next level of 3D BIM, in that it links the 3D model to time/schedule-related information. This 4D model then allows the various members of the project team responsible for delivering the project, together with the client, to better visualise how the project may sequentially progress and should also provide clearer and more detailed information with regard to programme.
Consequently, this has the capability of providing an excellent project management tool and has huge potential for better delivery outcomes on more complex projects.
4D BIM in practice
4D BIM is said to have been used on the current project at 22 Bishopsgate, which when completed, will be the tallest building in the City of London.
Recent press reports indicate that the project is adopting a new form of BIM that uses both 4D modelling applications together with advanced virtual reality. The rationale behind this is to facilitate new opportunities for BIM to be used in logistics, health and safety and also as a tool in the design and construction of buildings.
These recent press reports suggest that, while there have been inevitable challenges, the most notable benefits of using these technologies has been the vast improvements in the efficiency of the whole design and construction process, particularly with regard to identifying and rectifying errors in designs.