Schedule Buffer vs Completion Speed
Concentrate schedule contingency at critical dependencies rather than distributing it uniformly, then track consumption actively.
CyberTRIZ analysis · RealEstateConstruction contradiction REC029 · one of 8,235 worked contradictions published by CyberTRIZ.AI
Business Context
Schedule contingency protects projects against uncertainty, weather, supply disruption, design changes, and productivity variation. However, excessive buffers extend planned completion dates and delay revenue or occupancy.
Real Estate & Construction TRIZ Resolution
Rather than distributing contingency uniformly across activities, schedule protection can be concentrated around critical dependencies and high-uncertainty work. Shared project buffers, targeted procurement allowances, and active monitoring can protect completion without embedding unnecessary time into every activity.
Applicable TRIZ Principles
Principle 1 – Segmentation distinguishes high-uncertainty activities from predictable work.
Principle 11 – Beforehand Cushioning protects critical outcomes with targeted contingency.
Principle 23 – Feedback adjusts schedule protection according to actual project performance.
Expected Outcome
Shorter planned duration
Preserved schedule resilience
Better visibility of contingency
More reliable completion forecasts
Decision Indicators
Early indicators include:
Individual activities contain overlapping hidden contingencies.
Planned durations substantially exceed demonstrated production rates.
Schedule buffers are consumed without clear visibility.
Management cannot determine where remaining contingency exists.
Projects choose between aggressive schedules and excessive overall allowances.