Plan A Project Planning planaplan.com.au

On-Demand Inclement Weather

Calendar Creation & Analysis
Automated P6 calendars for any location in Australia — analysed against real inclement weather impacts on projects across Australia & NZ.
20 years of real wet weather analysis on 1000s of projects
Register for early access
Launching soon. One email — no forms, no spam.

Two tools in one

Whether you are building the programme or defending it, the weather allowance should be measured — never assumed.

MAKE

Build a defensible calendar set

Drop your P6 — it finds your site itself. Or click the map.
Pick the work: Earthworks, Pavements, Structures — each with its own measured delay factors
Set the confidence as a P-value, or type the % time lost your CM already knows
One import-ready .xer with the whole calendar family inside — plus the Basis of Schedule that justifies every blocked day
ANALYSE

Rate the allowance you already carry

Every calendar in your programme, rated against the full rainfall record at your site
A plain verdict: your allowance rates as P8 — conservative, about right, or light
Where your finish date lands under more or less weather
Your own file back with the corrected calendars inside, activities untouched
EVIDENCE

Every blocked day cites its observation

Real gauge records — up to 127 years deep — not gridded estimates, wherever a good station exists
Delay factors measured on real Australian projects, work type by work type
Documents that read like a Basis of Schedule because they are one
No element of the allowance is assumed

Checked against reality

The banded method was checked against 1,304 days of actual approved extension-of-time records on a major Australian highway upgrade — real lost time against the rainfall that caused it. Actual working time lost was 21.8% on the critical path and 24.0% in the worst area; the model predicts 22.6% at P50 — between the two. Full provenance is held by Plan A Project Planning and is auditable on request.
CONSERVATIVEP60 and above
ABOUT RIGHTP40–P59
LIGHTP20–P39
WELL LIGHTbelow P20

The four verdicts your programme can earn. Most programmes we test rate lighter than their owners believe.

Register for early access

The tool is in live development with launch partners now. Tell us the project and the location — we will run it and send you your programme's rating.

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