Every project is sized by the Manpower Predictor from its blocks, storeys, floor plate and construction method, then laid on one calendar from its construction start to its completion. Set a worker cap and a crane cap to see where the portfolio runs short; change a date, or apply a suggested move, and the whole page follows.
What needs attention
Concerns, most severe first
Who makes the peak
Moves that ease it
For each project not yet on site, the start delay of up to six months that most lowers the portfolio peak — or, with a worker cap, most cuts the worker-months over it. Apply one and every figure on the page follows; Undo puts it back.
Workers on site across the portfolio, month by month
The monthly figures as a table
Bottlenecks — each trade, the cranes and the lifting team
One small chart per trade group, and for the tower cranes lifting and the lifting team the law requires on them, each on its own scale so a trade that peaks late or sharply shows even when it is small. The dashed line is the “as of” date; a red line is a cap. Compare the shapes and the months, not the heights.
Programme — launch, start and completion
One row per project on one calendar. The diamond is the launch; the bar is construction in its three phases; a red tick is a completion date the programme cannot meet. Point at a row for its figures; click to find it in the table.
Projects
Click a heading to sort. Change a launch, start or completion date and every figure on the page follows. Each project’s peak and man-days come from the predictor’s Code-anchored column, with its programme fitted between its start and completion.
What this rests on
- Each project is one run of the predictor’s Code-anchored column, by total duration: start to completion is the contract period, and its substructure, frame and fit-out fill it.
- A month’s figure is the average of its weeks. The portfolio peak is the busiest month, lower than the sum of every project’s own peak because projects peak in different months.
- Cranes and the lifting team count the blocks whose frames are going up, with the WSH (Operation of Cranes) Regulations’ appointments on each crane and block.
- A suggested move slides one project’s monthly curve later by whole months, everything else held. It does not know about land, tender or handover commitments — it says what would ease the peak, not whether the move is possible.
- A finding most projects share is shown once: it is usually about the assumptions or the brief.
- The sample public-housing projects are fictional, but their sizes are HDB’s: storeys, blocks and dwellings a floor from HDB Property Information (blocks completed 2015–2025, the blocks of one street and year taken as a project), towns from Completion Status of HDB Residential Units by Town/Estate, and the wait from launch to completion from HDB’s BTO sales launches. Contains information from those datasets accessed on 30 Sep 2026 from data.gov.sg, made available under the Singapore Open Data Licence version 1.0.
- Public housing is sized with precast as the reference method and a 20% site saving for PPVC, fitted to the man-days recorded on completed public-housing projects. The records themselves are private and are not on this site.
- Everything is computed in this tab; projects are kept in this browser, and move between people as a file.