About

Fifty notes on construction workforce tracking, written from the site's side and framed around the multi-employer problem that makes this different from workforce tracking anywhere else.

Who this is for

Whoever has to answer for who is on site: principal contractors, site managers, and the person who ends up owning the register. Also subcontractors, who meet these requirements from the other direction and are rarely told why they exist.

How the notes are written

Checks you can run, starting with five that take one morning and establish where a site actually is.

The uncomfortable findings included. Most registers are wrong by mid-afternoon. Most flow-down clauses were never passed on. And a subcontractor under price pressure will bring whoever is available, which is not dishonesty but the predictable result of a programme that moved and a penalty that did not.

Limits stated plainly. Three notes are entirely about what the data cannot tell you, what nothing fixes, and the arrangements that cost nothing and are skipped anyway.

What is deliberately absent

How to use gate data to police individual attendance for people employed by somebody else. How to close unmatched entries artificially. How to justify a system as a control for a hazard it cannot address.

These appear only in the notes explaining why they should not be done.

No costs or ratios

None are quoted, deliberately. Welfare ratios, retention periods and system costs depend on jurisdiction, contract and site.

Every number worth having here is one you produce from your own site, and the notes say how to produce each.