Quantification of Delay Factors Using the Relative Importance Index Method for Construction Projects in Turkey

2013-04-01
Gunduz, Murat
Nielsen, Yasemin
Ozdemir, Mustafa
Construction delays are common in construction industry and create major concerns for project performance. Construction delays are caused by many factors. The aim of this paper is to identify delay factors on construction projects and analyze these factors with the relative importance index method. For this purpose, 83 different delay factors were identified, categorized into nine major groups, and visualized by the Ishikawa (fishbone) diagram through detailed literature review and interviews with experts from the construction industry. The relative importances of these delay factors were quantified by the relative importance index method. The ranking of the factors and groups were demonstrated according to their importance level on delay. According to the case study results, the factors and groups contributing the most to delays (those needing attention) were discussed, and some recommendations were made to minimize and control delays in construction projects. DOI: 10.1061/(ASCE)ME.1943-5479.0000129. (C) 2013 American Society of Civil Engineers.
JOURNAL OF MANAGEMENT IN ENGINEERING

Suggestions

Effects of Risk Attitude and Controllability Assumption on Risk Ratings: Observational Study on International Construction Project Risk Assessment
Dikmen Toker, İrem; Birgönül, Mustafa Talat (American Society of Civil Engineers (ASCE), 2018-11-01)
Risk assessment based on probability-impact (P-I) ratings is the most widely used approach in project-based industries such as the construction industry. However, there are various criticisms about utilization of the P-I rating approach because there are factors and assumptions that are hidden within the risk ratings that cannot be conveyed to decision makers for a reliable risk assessment. This study aimed to explore biases, particularly how the risk attitude and assumptions on controllability of risk (ill...
Rebalancing the assembly lines with total squared workload and total replacement distance objectives
Girit, Utku; Azizoğlu, Meral (Informa UK Limited, 2020-01-01)
Assembly line balancing is an important and well recognised operations research problem. The current line balance may not stay optimal, even feasible, due to the disruptions in one or more workstations. In this study, after the disruption, we aim to rebalance the assembly line by considering the trade-off between workload balancing (fairness measure) and total replacement distance for the tasks assigned to the different workstations (stability measure). We try to generate all non-dominated objective functio...
Integrated Approach to Overcome Shortcomings in Current Delay Analysis Practices
Birgönül, Mustafa Talat; Dikmen Toker, İrem (American Society of Civil Engineers (ASCE), 2015-04-01)
Many factors, such as unforeseeable events, managerial and financial problems of contractors, insufficient technical capacity of site teams of contractors or Consultants, and so on, may lead to delays in construction projects. Proper analysis of compensability and quantum of a delay event is of prime importance. Any delay analysis application can be considered as a result of the combination of contract documents, scheduler, record-keeping mechanism at the site, communication among project participants, dela...
MEASURING THE IMPACT OF LEAN CONSTRUCTION PRACTICES ON PROJECT DURATION AND VARIABILITY: A SIMULATION-BASED STUDY ON RESIDENTIAL BUILDINGS
Erol, Huseyin; Dikmen Toker, İrem; Birgönül, Mustafa Talat (2017-01-01)
Performance of the construction projects have been criticized for many years due to their low productivity rates and cost overruns as well as significant delays. Increasing number of dissatisfied customers compel practitioners to reform conventional practices of construction management. Lean construction has emerged as a result of these efforts in the industry. However, there are limited number of studies that demonstrate the practical benefits of lean construction applications. The aim of this paper is to ...
Part-mix allocation between automated and conventional manufacturing
KAYALlGIL, M. SINAN (Informa UK Limited, 1990-10)
The overall part-mix of a production system is allocated optimally between the existing conventional facilities and planned automated system to be acquired. Approximate mean value analysis (MVA) is utilized to evaluate performance of the automated system under trial part-mix allocations. Cost of processing and WIPs are taken as the sources of operational costs. Cost minimizing route allocations when alternatives exist are handled by a search procedure.
Citation Formats
M. Gunduz, Y. Nielsen, and M. Ozdemir, “Quantification of Delay Factors Using the Relative Importance Index Method for Construction Projects in Turkey,” JOURNAL OF MANAGEMENT IN ENGINEERING, pp. 133–139, 2013, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/66178.