Time Impact Analysis (TIA)
Prospective and contemporaneous time impact analyses that model a specific event in the current schedule and show its effect on completion and key milestones.
Measure the effect of an event while there is still time to act.
A time impact analysis inserts a fragnet, the activities and logic that represent a delay event or change, into the schedule update current at the time of the event, then recalculates to measure the shift in completion and milestones. Many contracts require one for any time request. Used promptly, it is the most practical way to settle delay before it becomes a dispute.
Method matters. A prospective TIA forecasts the likely effect of an event and is the approach the SCL Protocol favours for contemporaneous EOT assessment. Applied retrospectively across successive updates, the same technique becomes a windowed time impact analysis, AACE MIP 3.7. We are explicit about which we are doing, because each answers a different question.
For contractors we prepare TIAs that meet the contract’s submission requirements and are hard to reject. For owners and contract administrators we review submitted TIAs line by line: whether the base update was reliable, whether the fragnet reflects the record, whether available float and mitigation were respected, and whether the impact has been overstated.
What we bring to Time Impact Analysis (TIA)
Senior practitioners, a proven method and the right technology. Every line below is part of the engagement, not an upsell.
Base schedule selection
The update current at the event date, verified and statused before use.
INCLUDEDFragnet construction
Activities, durations and ties drawn from the record, not from optimism.
INCLUDEDImpact measurement
Shift in completion and contract milestones calculated and reconciled.
INCLUDEDFloat and mitigation
Ownership of float and reasonable mitigation addressed under the contract.
INCLUDEDSubmission narrative
A concise explanation of cause, effect and entitlement with evidence attached.
INCLUDEDIndependent TIA review
Owner-side review of contractor TIAs for method, logic and reasonableness.
INCLUDEDA clear path, milestone by milestone.
A disciplined sequence, so you always know what happens next, who owns it and why it matters.
What you receive
- 01Time impact analysis report
- 02Fragnet and impacted schedule (native files)
- 03Base update verification note
- 04Evidence bundle and narrative
- 05EOT request or response support
- 06TIA review comments and negotiating position
Technology we work in
Platform-fluent and vendor-independent. We work inside your environment, or help you choose the one that fits. We take no reseller commissions.
What changes when we arrive.
Not more reports. Earlier warnings, firmer dates and decisions your board, lenders and teams can trust.
Extensions agreed during delivery rather than argued years later.
Requests that satisfy the contract and the reviewer at first pass.
Owners award the time that is due, and no more.
What leaders ask us first.
Straight answers from the people who do the work. If your question is not here, ask us directly. A senior practitioner will reply.
When should a TIA be prepared?
As soon as the event and its likely effect can be described, and within the contract’s notice and submission periods. Waiting for the full effect to be known turns a forecasting exercise into a retrospective dispute.
What is a fragnet?
A fragmentary network: a small set of activities and logic representing the event or change. It is tied into the existing schedule so the software, not the author, calculates the effect on completion.
Our contractor has submitted a TIA. Can you review it?
Yes, and quickly. We check the base update, the fragnet logic and durations against the record, float consumption, mitigation, and whether the event was actually on the critical path. The review gives you a defensible position for negotiation.
What is the difference between a prospective and a retrospective TIA?
A prospective TIA forecasts the likely effect of an event at the time it occurs. A retrospective, windowed TIA applies the same technique after the fact across successive updates and is classified in AACE 29R-03 as a modelled, additive, multiple base method. The forum and contract determine which is appropriate.
Extension of Time (EOT)
Extension-of-time preparation, assessment and negotiation support under AIA, ConsensusDocs, FIDIC, NEC and bespoke contracts.
Forensic Scheduling
Forensic reconstruction of as-planned and as-built schedules from the project record, analysed with methods recognised by AACE International and the SCL Protocol.
Claims Support
Preparation, review and defence of construction claims for delay, disruption, acceleration and change, in close partnership with counsel.
See your finish from here.
Tell us where your project stands today. In one conversation with a senior practitioner you will know where it is really heading, what is driving it, and what it will take to land it.
- Senior practitioner on the first call
- Confidential by default
- A straight answer, not a sales pitch
