Recovery Scheduling
When statusing and the forecast say you'll finish late, a recovery schedule is a real plan to regain lost time — by compressing the critical path through resequencing, overtime, extra shifts, fast-tracking, or added crews, each with its own cost and risk. Built on AACE 54R-07.
What recovery scheduling is
Recovery scheduling kicks in when the control loop sounds the alarm: statusing shows you're behind, the forecast says you'll finish late, and the gap is too big to ignore. Rather than simply accepting the late finish, you build a plan to close the gap — and you make the cost and risk of doing so visible, so management can decide what's worth it.
The recovery methods
There are a finite set of levers to compress a schedule. Each buys time but carries a cost — usually money, risk, or both:
- Add resources (crashing) — put more crews/equipment on critical activities to shorten them. Costs money, and has diminishing returns once a work area is crowded.
- Overtime & extra shifts — work longer hours or add a second shift. Fast to deploy, but productivity drops with fatigue and premium pay adds cost.
- Fast-tracking (overlap) — run activities in parallel that were planned sequentially. Adds no direct cost but increases risk of rework if the upstream work changes.
- Resequencing — reorder work to remove constraints or open more work fronts. Low cost, but limited by physical and logical realities.
- Reduce scope / re-estimate — defer non-essential work or revisit optimistic durations. Use carefully — never just shorten durations on paper to "fix" the date.
Recovery options explorer
Each lever trades time against cost and risk differently. Pick a method to see what it buys and what it costs:
Recovery options explorer
ExploreIllustrative trade-offs for a critical path running ~10 days late. Pick a lever to see what it buys and what it costs.
Resequence
Reorder work to remove a constraint or open another work front. Cheapest lever, but bounded by what physical and logical sequence allows.
Cautions and good practice
A recovery schedule is only useful if it's achievable and honest. The classic failure is the "paper recovery" — durations slashed and logic loosened until the software shows the right date, with no real plan behind it. That fools no one for long and destroys credibility when the next update slips again.
| Good recovery | Paper recovery (avoid) |
|---|---|
| Real actions: crews, shifts, resequencing | Durations cut with no plan to back them |
| Cost and risk made explicit | Constraints deleted to force the date |
| Focused on the critical path | Effort spread across float-rich work |
Ten things to remember
- A recovery schedule is a real plan to regain lost time, not just a redrawn date.
- You recover only by compressing the critical path — float-rich work doesn't help.
- The levers: add resources, overtime/shifts, fast-track, resequence, reduce scope.
- Crashing buys time but costs money; fast-tracking is cheap but raises rework risk.
- Diminishing returns are real — added crews and overtime lose efficiency.
- Combine levers for the best time per dollar per unit of risk.
- Make cost and risk explicit so management can decide what's worth it.
- Avoid "paper recovery" — slashing durations and deleting constraints fools no one.
- A recovery plan must be achievable — an unrealistic one just delays the bad news.
- Document the cause and cost — who pays depends on why you slipped.
Glossary
- Acceleration
- Speeding up work, whether to recover or to beat the original date.
- Crashing
- Shortening activities by adding resources, at added cost.
- Critical path
- The chain controlling the finish — the only place recovery counts.
- Fast-tracking
- Overlapping activities planned in sequence, increasing risk.
- Paper recovery
- A fake recovery that changes dates without a real plan.
- Recovery schedule
- A revised plan to regain lost time and meet the required completion date.
- Resequencing
- Reordering work to remove constraints or open work fronts.
- Schedule compression
- Any technique that shortens the overall duration.