A framework to select the most suitable delay analysis technique for building construction through a consideration of utility factors

Abstract

Delay results in disputes, which in many cases retard the progress of a project. Due to its criticality, a wide range of Delay Analysis Techniques (DAT) has been developed by various analysts over the years to address the issue. With the passage of time, analysts have identified the inherent properties or factors of each of these methodologies according to which they can be grouped into filter and utility factors. However, in the Sri Lankan construction industry, solutions to resolving and managing construction delays remain at an elementary level with most analysts opting for an ad-hoc selection of delay analysis techniques rather than being governed by considerations of suitability. Recognizing the importance of utility factors in construction delays, this study takes into consideration utility factors in the development of a framework that would aid in the selection of the most suitable DAT for the purpose of analyzing delays in the Sri Lankan building construction industry. A preliminary questionnaire survey was initially conducted, which sought to identify current delay analysis procedures, the use of DATs in the Sri Lankan building construction industry, and factors affecting the selection of DAT. The study was further expanded through a secondary questionnaire survey in order to select the most suitable delay analysis technique through a consideration of utility factors. The framework developed directs analysts to select the most suitable DAT via a consideration of utility factors. The proposed framework will lead to a reduction in the error margin in delay analysis while aiding the increase in accuracy of delay analysis.