Why load resources into the schedule
A programme without resources cannot show whether it is buildable. A resource-loaded schedule attaches manpower and equipment to each activity, so peaks, shortages and idle periods become visible before they happen on site. Consultants increasingly ask for it with the baseline submission.
From quantity to crew-days
For each activity: crew-days = quantity ÷ daily output of one crew. The crew composition (skilled and unskilled) turns crew-days into man-days by trade. Rates start from a regional library for Saudi Arabia, the UAE and Egypt; every rate is editable, and your overrides build your team's private library.
| Activity | Quantity | Output / crew-day | Crew | Man-days |
|---|---|---|---|---|
| Excavation | 120 m³ | 40 m³ | 4 | 12 |
| Reinforcement | 6 t | 2 t | 6 | 18 |
| Concrete | 60 m³ | 30 m³ | 5 | 10 |
Histograms, S-curves and levelling
Spread on the early or late dates of the programme, the man-days become a daily manpower histogram by trade, with cumulative S-curves. Peaks that exceed the labour you can mobilise are visible at a glance, and the same programme feeds the cost-loaded cash flow.
Into Primavera P6
Resources and their assignments travel in the XER, so the loaded programme opens in P6 with its resources — no re-entry line by line.
Manpower and equipment, by trade
Each activity carries a crew: skilled and unskilled labour by trade, and the equipment it needs. Totals roll up by trade, by phase or for the whole project, so you can answer the questions a resource plan exists for: how many masons in month four, when the second batching plant is needed, which week the labour camp peaks.
Resource levelling and realistic peaks
A histogram that spikes to three times the labour you can house is a schedule problem, not a resource problem. Shift non-critical work within its float, adjust crew sizes, or sequence work fronts differently — then let CPM recalculate. The aim is a programme whose peaks you can actually mobilise.
Cost loading and cash flow
With quantities and rates on the activities, the same programme becomes cost-loaded. Planned value over time gives the cash-flow forecast and the S-curve that later supports earned-value reporting in each schedule update.
Checklist before submitting a resource-loaded baseline
- Every activity with work has a crew; milestones and hammocks do not.
- Productivity rates are justified for the method and the site conditions.
- Peaks are within the labour and equipment you can mobilise and accommodate.
- Calendars match the working week, holidays and site-hour restrictions.
- Resources and assignments open correctly in the receiving P6 project.
Common questions
What is a resource-loaded schedule?
A schedule in which each activity carries the labour and equipment needed to do it, so resource demand over time can be read from the programme.
Are the productivity rates fixed?
No. They are a starting point from a regional library; you override them to match your crews and methods.
Do resources export to P6?
Yes — resources and assignments are written to the XER.
Try it on your own programme
Bring a representative work package — a BOQ extract or an XER — and review every assumption with your team.