Comparison of time slice windows analysis with the delay analysis methods frequently used in the construction industry: a case study

Date

2024-4-24

Author

Özkan, Tolgahan

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Delays are inevitable in construction projects, and they mostly result in disputes between contractor and employer because they impact the project completion date, which could lead to extension of time and monetary compensation claims or exposure to liquidated damages. Therefore, proper analysis of delays is crucial to determining the causes of critical delays and the responsible party. Multiple delay analysis methods are used in the construction industry to determine the causes of critical delays in order to calculate the extension of time and monetary compensation or liquidated damages accurately. However, each of these methods has strengths and weaknesses. The Society of Construction Law (SCL) analyzed a delay scenario using commonly used delay analysis methods in the Great Delay Analysis Debate. In this thesis, the same delay scenario was analyzed using the time slice windows analysis method. The results of the time slice windows analysis were compared with the results of other delay analysis methods, namely impacted as-planned, as-planned vs. as-built, collapsed as-built, and time impact analysis. The strengths and weaknesses of each delay analysis method were determined. The findings show that time slice windows analysis can identify important issues that are not easily identified by other methods, such as concurrent delays, accelerations, or changes in critical path throughout the course of the project. This research also concluded that the time slice windows analysis method is not only a delay analysis method, but also a key method for improved project and contract management during the execution of a project. However, time slice window analysis is also difficult and time-consuming to perform, and it requires as-planned and updated programs or physical progress data along with extensive as-built record-keeping.

Subject Keywords

Construction management, Delay analysis methods, Extension of time, Construction claims, Construction delays

URI

https://hdl.handle.net/11511/109477

Collections

Graduate School of Natural and Applied Sciences, Thesis