Same trades. Same job. Two very different finish dates.
Watch the same crews build the same work two ways: pushed in as areas come free, and moved through in a fixed sequence. Nothing changes but the order — watch what that alone does to the end date. Two minutes, no sign-up.
Set Up Your Job
Act 1 — The Usual Way
Trades get pushed into areas before the crew ahead is finished. Red outlines mark crews stacked in the same area — working slower, in each other's way, with no rhythm. Press play (or just scroll — it plays itself).
Act 2 — The Same Trades, Flowing
Nothing about the job changed. Same trades, same work content, same areas. The only difference: every crew always has an area to itself, and the whole site moves to one steady beat.
The Verdict
What You Just Watched
Both pictures contain identical work: the same crews, the same areas, the same hours of work in each. The only difference is the order crews are let into areas. In the first, they're pushed in before the crew ahead is clear; in the second, each waits for a free area and moves in sequence.
That difference alone moves the end date, because two things compound: crews sharing an area get less done than crews with a clear run, and every slip is inherited by everyone behind. The second picture is a takt plan — work sequenced to a fixed beat, which is the discipline we practise.
This is a model, not a measurement. The first schedule is generated from stated assumptions — crews pushed in when an area is ~60% done, and working around 45% slower while they share it. Change those assumptions and the gap changes. It shows how delay compounds in principle; it can't tell you what's happening on your job, or what's driving it.