Practical Uses of Building Information Modelling
Clash Detection:
One major benefit of representing design in 3D is that clash detection can be carried out. This is particularly useful when clash detection is interdiscipine, checking for example Architecture with Structure, Structure with Mechanical, etc.
Concept Design, Design Validation, Feasibility Studies :
Often the use of 2D drawings to convey an Architects understanding of a client brief is inadaquate becuase many individuals cannot interpret a myriad of 2D drawings. Showing 3D stills and animations is extremely useful ultimately leading to less rework because design decisions are made 'in the model' rather than on the project site.
Contractor Briefing, Safety:
Using a model to brief the site team ahead of operations helps speedup onsite activities becuase problems are ironed out in advance of getting to site. Safety on site improves as people are aware of other work planned to go on around them.
Prototyping, Detail Analysis:
Often a 3D model is the best and most cost effective way to produce a prototype mock up of design intent. More people understand the intent when shown in 3D than they do using 2D design information.
Complex Design:
Some designs are extremely difficult to convey in two dimensions, and the production of walk-throughs and animations are extremely useful to all participants in a project team.
Phasing, Program and Construction Sequencing:
Often referred to as a 4th dimension, or 4D, utilising a model to understand and plan construction sequencing helps make the work process more efficient. Linking 'cost', a 5th dimension (5D) to these models can help simulate expediture throughtout the different phases of the project.
Planning Approval:
Submission of design to authorities such as Local Authority planning office in 2D often leads to long lead times as design intent is misunderstand. Supplementing traditional methods of conveying design to Town planners with 3D material is often a great help.
Site Logistics, Egress, Access and Site Delivery:
Testing site logistics and stakeholder interfaces can be achieved by modelling differant scenarious and planning ahead, avoiding costly mistakes later on the project worksite.
Temporary Works:
Visualisation of temporary works increases public awareness on projects with many general public interfaces.
Visual Method Statements:
Pictoral method statements help improve site safety and ensures decisions regarding 'buildability' are dealt with appropriately.