Three option models, with the arithmetic shown

These are arithmetic models over illustrative inputs. They are not statistically validated predictions and carry no probability claim. Adjust the inputs and the totals recompute live.

Story A — Mar Casa smoke control recovery

Scenario values do not change the published AED 5.75bn construction award for the Mar Casa.

Scenario

Illustrative slip to recover: 5 weeks

Carrying cost per week: AED 1.9m

Formula: total = direct cost + (max(0, slip weeks − weeks recovered) × carrying cost per week). Every input is an illustrative demonstration value.

Lowest modelled total

Scenario

Option 2 — parallel witness testing · AED 11.4m

Option	Direct cost	Weeks recovered	Residual delay cost	Modelled total	Arithmetic
Option 1 — sequential re-testRectify dampers to revision C04, then re-test in the existing sequence.Assumptions: No additional witness resource; Re-test follows rectification with no overlap; Baseline slip of 5 weeks retained	AED 4.2m	0	AED 9.5m	AED 13.7m	direct cost 4,150,000 + (max(0, 5 − 0) weeks × 1,900,000 per week)
Option 2 — parallel witness testingSplit the tower into two witness zones and test in parallel while rectification continues.Assumptions: Second independent witness available; Zones can be isolated for smoke test; No additional damper supply required	AED 7.6m	3	AED 3.8m	AED 11.4m	direct cost 7,600,000 + (max(0, 5 − 3) weeks × 1,900,000 per week)
Option 3 — accelerated replacementAir-freight replacement damper assemblies and run double-shift installation with parallel testing.Assumptions: Factory slot released within 10 days; Double-shift permit granted; Parallel witness testing also adopted	AED 11.8m	5	AED 0	AED 11.8m	direct cost 11,800,000 + (max(0, 5 − 5) weeks × 1,900,000 per week)

Story B — Park Five facade-facing stone options

Cheap-and-slow against balanced against expensive-and-fast, with explicit arithmetic and the compliance review gate stated for each. All values are illustrative and remain separate from public project information.

Scenario

Area to facade-facing elevations: 8,900 m²

Prolongation per week: AED 1.2m

Formula: total = (rate per m² × area) + (compliance and procurement weeks × prolongation per week).

Option	Rate	Material	Programme weeks	Programme cost	Modelled total	Compliance gate
Economy substitutionLowest rate, slowest compliance route — gate outcome not assured in the scenario.	AED 980/m²	AED 8.7m	10	AED 12.0m	AED 20.7m	requires review
Balanced hybridSpecified stone on facade-facing elevations, substitute elsewhere.	AED 1,310/m²	AED 11.7m	6	AED 7.2m	AED 18.9m	likely to pass
Specified premiumAs specified; fastest gate, highest rate.	AED 1,620/m²	AED 14.4m	4	AED 4.8m	AED 19.2m	pre-approved

Compliance gates are reviewed in the compliance and specification module; the related variation sits in the variation register.

Story C — ELEVE payment application assessment

Claimed against evidence-supported amounts, line by line, with retention on the stated basis.

Scenario

Claimed (line arithmetic)

Scenario

AED 29.8m

Evidence-supported

Scenario

AED 28.7m

Difference

Scenario

AED 1.2m

Not a finding against any real party.

Retention at 5%

Scenario

AED 1.4m

28,667,250 × 5% = 1,433,362.5 retained; net 27,233,887.5

Full line detail, flags and evidence links are in the payment application check. Current demo role: CEO.