Effective Tactics for Delay Analysis



By Pratyush K. Chaturvedi

SKEMA Business School

Paris, France



This study aims at investigating the main cause of delays within Oil & Gas & Construction EPC Projects. TIA (Time Impact Analysis) is a schedule delay analysis technique to claim the contract time extension and cost due to the delays which are not the responsibilities of the contractor. The time for performance (Plan vs Actual) of a project is usually important for both the contractor and Employer (Owner/Client). The purpose of project delays is making right decisions on potential times and cost claims for both parties. This study shows the impact of delays within FEED (Front End Engineering Design) and execution phase on overall duration of the project. The requirement for performing TIA is that schedule must have recently updated and approved Critical Path method schedule.

Keywords: Oil & Gas Projects, EPC Projects, Delay Analysis, Cost Claims, Extension of Time, Scheduling, Critical Path Method (CPM), Extension of Time (EOT), Owner & Contractor, Vendor, Claim, Baseline Schedule


A Time Impact Analysis (TIA) is a modeled method of analysis to aid in supporting a request for an extension of contract time. As defined by AACE RP 52R-06, “TIME Effect Examination is connected in Oil and Gas and Development Industry. The TIA id ‘forward-looking’ planned timetable investigation procedure that adds a displayed delay to an acknowledged contract calendar to decide the conceivable effect of that deferral to the undertaking culmination.” On the other hand, “ACE RP 29R-03, FORENSIC SCHEDULE ANALYSIS-2011[1] (29R- 03), endeavors to characterize and portray review investigations.” This demonstrates some ‘Observational examination’s Method Implementation Protocols (MIP 3.3, 3.4, 3.5) are every so often called ‘Time Impact Analysis’ (TIA). Be that as it may, most investigators think about TIA as a ‘Demonstrated’ examination (MIP 3.6, 3.7) [Figure 1]. Under the portrayal of MIP 3.6, ordinarily referred to as ‘Affected As-Planned’, RP 29R-03 states: ‘MIP 3.6 can be utilized tentatively or reflectively’.

Figure 1. AACE RP29R-03 Forensic Schedule Analysis

What is PROSPECTIVE and RETROSPECTIVE analysis?[2]

RP 29R-03 defines prospective analyses as:

“Prospective analyses are performed in real-time prior to the delay event or in real-time, contemporaneous with the delay event. In all cases prospective analysis consists of the analyst’s best estimate of future events. Prospective analysis occurs while the project is still underway and may not evolve into a forensic context.”

RP 29R-03 defines Retrospective analyses as:

“Retrospective analyses are performed after the delay event has occurred and the impacts are known. The timing may be soon after the delay event but prior to the completion of the overall project, or after the completion of the entire project… In other words, even forward-looking analysis methods implemented retrospectively have the full benefit of hindsight at the option of the analyst.”

The Time Impact Analysis is performed while a venture is in running stage. The Time Impact Analysis additionally a procedure to be utilized by the Contractor as an inward strategy to assess changes to recuperate or enhance venture consummation for delays caused by the Contractor. According to individual late experience, many contracts concur that TIA ought to be arranged and submitted to quantitatively approve the Contractor’s ask for time augmentation. Once the span of time has been settled upon, at that point the additional time-related expenses of such a deferral can be resolved regarding the agreement.


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Editor’s note: Student papers are authored by graduate or undergraduate students based on coursework at accredited universities or training programs.  This paper was prepared as a deliverable for the course “International Contract Management” facilitated by Dr Paul D. Giammalvo of PT Mitratata Citragraha, Jakarta, Indonesia as an Adjunct Professor under contract to SKEMA Business School for the program Master of Science in Project and Programme Management and Business Development.  http://www.skema.edu/programmes/masters-of-science. For more information on this global program (Lille and Paris in France; Belo Horizonte in Brazil), contact Dr Paul Gardiner, Global Programme Director [email protected].

How to cite this paper: Chaturvedi, P. K. (2018). Effective Tactics for Delay Analysis, PM World Journal, Vol. VII, Issue XII (December). Available online at https://pmworldjournal.net/wp-content/uploads/2018/12/pmwj77-Dec2018-Chaturvedi-effective-tactices-for-delay-analysis.pdf

About the Author

Pratyush Kumar Chaturvedi

Uttar Pradesh, India



Pratyush K Chaturvedi, is a certified holder of AgilePM Foundation and PRINCE2 Foundation with an extensive experience of over 9 years in Project Management and Project Controls as a planner, scheduler, budget & cost control in Oil & Gas, Power Plant and construction industry. At present, he is pursuing a Masters in Project and Programme Management and Business Development from SKEMA Business School, Paris. He originates from Uttar Pradesh, India where he completed his graduation with a Bachelor Degree in Information Technology (2006) from Uttar Pradesh Technical University. Previously, he has worked for Punj Lloyd Limited in India, Qatar and Indonesia as a planning engineer; followed by Corrtech International Pvt. Ltd., India as a senior engineer; after that he worked with PT. Timas Suplindo, Indonesia as a Lead Project Control Engineer; recently he worked with PT. Visacall Jaya Abadi, Indonesia as a Project Planner.

Pratyush can be contacted at mail [email protected] and at linked 5355b61a.

[2] THE USE (OR MISUSE) OF A PROSPECTIVE TIME IMPACT ANALYSIS PROVISION IN A FORENSIC ARENA: A CASE STUDY. (2017). Navigant.com. Retrieved 26 November 2017, from https://www.navigant.com/-/media/www/site/insights/construction/2017/gcon_ifh_theuseormisuseoftias_tl_0617.pdf