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How do you prepare a Time Impact Analysis in a construction project ?
Time impact analysis is done using exesting scudual, analyzed with all related input entered into the schedule to demonstrate the reason or possible effects on schedule. determine extent of impact from potential delay in construction process. promote negotiation and later agreements on delay claims
To claim (EOT) by time impact analysis, All delay events are collected from different documents (Shop Drawing, material, RFI, IR, MIR Logs, Correspondences, minutes of meetings, Daily, Weekly, Monthly and obstructions reports etc.) month wise.
The delay events are included into approved Baseline/updated program to creat fragnet schedule at different time intervals and affect of fragnet schedule is noted. Update impacted schedule and affect is noted. The delay from both programs will be considered delay on of parties (Contractor or Client). A serioes of fragnet schedules are created by delay events at different time inetrevals and net delays calculated. At the end of last interval, overal net affect is conisdered as claim for EOT if valid. Following are the steps involved.
1) Develop and approve schedule fragnet to model the extra work
2) Obtain the most recently updated approved schedule
3) Set the durations of the extra work activities (fragnet) to zero.
4) Insert the approved durations into your fragnet (schedule of new work) and recalculate the critical path.
5) Identify the activities used to measure the delay
6) Determine the correct time impact of delay
7) Determine the actual dates of the delay
8) Lastly eliminate any delay that was already in the schedule
When performing a time impact analysis be sure to:
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Time Impact Analysis is a method used to determine the extent of impact from potential delay in the construction process. This schedule analysis method involves inserting additional activities indicating delays or changes into an updated schedule representing progress up to the point when a delay event occurred to determine the impact of those delay activities.
Outline the contract payment schedule and Scope of Work. Determine resources requirements (Manning/Equipment/Materials) and lag time (Holidays/Scheduling/Procurement) for the specific task (project). Sync those tasks up to critical path/sequence of events. Time Impact Analysis estimates baseline and potential slippage. Add cost to forecast cash outflow (cognative of vendor terms). And, Add billing to forecast cash inflows (cognative of customer terms).