Why 80% of delays are not lost due to execution
Introduction: The Myth of the “Failed Construction Site”
In the collective imagination of the construction industry, a delayed project is often synonymous with poor execution on site:
- lack of productivity
- poor organization
- ineffective teams
However, the reality of complex projects (EPC, nuclear, infrastructure) is quite different:
The majority of delays are not “lost”... they are misidentified, poorly structured, or poorly defended.
The real problem: understanding ≠ proving
A project can be delayed for dozens of reasons:
- late modifications
- poorly managed interfaces
- customer decisions
- external constraints
But in a contractual setting, that's not enough.
For a delay to legally “exist”, it must be demonstrated:
- the cause
- accountability
- the impact on the schedule
This is precisely the role of the delay analysis :
Identify, quantify, and attribute delays with a structured methodology
Without that, the delay is invisible... even if it's real.
Not all delays are equal.
This is a major mistake on the projects.
A delay is only valuable if it impacts the Critical Path.
Simple example:
- delay on a non-critical activity No contractual impact
- delay on critical path Extension of deadline + potential cost
In practice:
- There are many delays.
- few are contractually valid
Delays are classified (critical, excusable, compensable, etc.), and each type has different consequences for claims.
Key takeaway:
80% of delays are “unquantifiable” because they are poorly positioned in the schedule.
3. The decisive factor: documentation
This is where it all happens.
An undocumented delay is a non-existent delay.
Projects produce massive data:
- emails
- Reports
- Radio Frequency Interference
- modified plans
- Site diaries
But without structure:
impossible to:
- reconstruct the timeline
- prove causality
- demonstrate the impact
Or
Solid documentation allows for the identification of events, quantification of their impact, and assignment of responsibility.
4. Delays are rarely an execution problem.
It's counterintuitive but fundamental.
In large projects:
- the teams are performing globally correctly
- The schedules are slipping due to systemic factors.
The common real causes:
- late client decisions
- Insufficient design maturity
- vague contractual interfaces
- Poorly integrated changes
- Poor float management
And above all:
Delay becomes a problem when it's not factored into the schedule.
5. The real issue: transforming time into a contractual lever
A well-analyzed delay allows for:
- a Extension of Time (EOT)
- a penalty protection
- a Financial claim (extension, disruption, etc.)
The expert's role is clear:
Analyze events, assign responsibilities, and quantify the impact to enable financial valuation.
6. Why 80% of delays are “lost”
Because the projects:
❌ do not structure their schedule
❌ do not follow the critical path
❌ do not document correctly
❌ Don't think “contractual”
Don't anticipate claims
Result:
- delays exist
- but they are not neither proven nor defensible
7. ALVID's (High Value) Positioning
That's exactly where the difference lies between:
❌ A classic planner
→ who follows progress
✅ A Strategic Approach (ALVID)
which transforms the schedule into a contractual asset
Conclusion — Time is a contractual capital
Projects don't waste time.
They lose the ability to prove it.
The real gap is not operational.
It is Analytical, contractual, and strategic.