Time

What it is

The programme linked to the model — sequence, phasing and progress you can see.

4D ties the schedule to the geometry, so sequence and phasing become something you watch rather than read. A programme linked to the model shows progress against plan in a way a bar chart never can.

Seen this way, clashes in time — not just space — surface early, while the sequence can still be changed cheaply.

What it delivers

• The construction programme linked to the model
• Sequence and phasing you can watch, not just read
• Progress against plan in geometry, not a bar chart
• Time clashes surfaced while the sequence can still change