Delay Factors Management and Ranking for Reconstruction and Rehabilitation Projects Based on the Relative Importance Index (RII)

Abstract

In recent decades, the construction industry has developed rapidly. Delay was and remains one of the most important challenges negatively affecting not only this industry but also the economy and sustainable development. This study aims to conduct a comprehensive analysis of the delay factors in reconstruction projects because of the vital importance of these types of projects. This is the first attempt to conduct such an analysis for reconstruction projects in particular, and it is a continuation of the previous case study, which was considered one of the most important reconstruction projects in the Middle East region. The previous study focused on determining the types of delay factors used in this project. It is necessary to carry out advance in-depth analysis to sort the delay factors based on their effect on the project plan. In order to achieve the study goal, 93 questionnaires were distributed by hand to experts working on the project: some of them working the day shift, and the others working the night shift. The questionnaire results were analyzed and delay factors were sorted in descending order according to the relative importance index (RII). The three main factors affecting the overall reconstruction project duration were site restrictions and conditions, electrical and mechanical rerouting works, and design buildability and adjustment.

Triggers of Delays in International Projects Using Engineering Procurement and Construction Delivery Methods in the Belt and Road Initiative: Case Study of a High-Speed Railway Projects

“…The major causes of delays, according to their results, were a lack of suitable machinery, inadequate coordination among contracting parties, issues with subcontractors, changes in orders, and the designers' lack of experience. Khatib et al [65] discussed and evaluated all the multiple triggers of delays that were important to the capacity expansion of reconstruction projects in the Middle East, and he found that the three primary issues influencing the length of the overarching reconstruction project were the constraints and requirements of the location, the configuration of the electrical and mechanical alterations, buildability, and the complexity of the worksite. His findings made it apparent that there were considerable delays in reconstruction projects.…”

Research on the factors of extremely short construction period under the sufficient resources based on Grey-DEMATEL-ISM

“…Jeffrey et al [ 22 ] prioritized these reasons according to the importance index of the comprehensive frequency and severity index, and identified five main reasons, including lack of proper planning and scheduling, many change orders from customers. Basem et al [ 23 ] based on a large number of questionnaires, the delay factors are ranked in descending order according to the Relative Importance Index (RII). It is considered that the three factors affecting the construction period of the reconstruction project include site constraints and conditions, electrical and mechanical rerouting works, and design buildability and adjustment.…”

Research on extremely short construction period of engineering project based on labor balance under resource tolerance

“…However, against the background of COVID-19 and innovation-driven development in the 14th Five-Year Plan [ 26 ], it is necessary to thoroughly study the realization of an extremely short construction period of a project from the new perspective of resource tolerance. In the research process, it has been found that even under the condition of resource tolerance, there remain many factors influencing the realization of an extremely short construction period in terms of the engineering quantity [ 27 , 28 ], management [ 29 – 31 ], technology [ 31 , 32 ], and environment [ 33 , 34 ]. This study only focuses on the factor of labor force balance under working face limitations.…”