Building time into our 3D BIM models turns them into 4D BIM models – we can carefully model and simulate the sequence of construction to ensure that the right materials and resources (plant, equipment, labour) are available at the right times to ensure that the project proceeds according to programme.
Further, the inherent clash detection that becomes possible in a 3D model extends from the spatial dimension to the temporal dimension. Clashes in time are as important to avoid as clashes in space. For example, if an item of equipment obstructs access to part of the project for a few days, that may well have knock-on effects in the construction programme.
Building cost into our BIM model turns it into a 5D BIM model.
This means that each element of the project can be costed accurately – including costs of construction materials, labour and plant/equipment – as well as ongoing costs of operation, maintenance and, ultimately, de-commissioning. It also enables us to put costs on clashes and delays which arise from a 4D analysis such as major items of plant which cannot be put off-hire because of access/egress obstructions.