scholarly journals Causes of Delay in Power Transmission Projects: An Empirical Study

Energies ◽  
2019 ◽  
Vol 13 (1) ◽  
pp. 17
Author(s):  
Goutom K. Pall ◽  
Adrian J. Bridge ◽  
Jason Gray ◽  
Martin Skitmore

Power transmission (PT) projects are vital for the power sector. However, worldwide PT projects experience delay. There is an urgent need to understand the unique causes of delays in PT projects. This paper presents the first empirical study on causes of delays in PT projects via a comprehensive literature review. Based on this literature review, 63 potential delay factors are identified and divided into ten major groups. These include two new groups of delay attributes, comprising sector-specific factors (SSF) and general factors (GF), where SSF pertains solely to PT projects and GF contributes to minimizing the bias of project participants. A questionnaire survey of 311 PT stakeholders is conducted to determine the overall ranking of the delay factors using the relative importance index. The results indicate that SSF, GF, and external/unavoidable factors are the most critical groups of delay factors, with the top-ranked factors being right of way problems of transmission line (TL), frequent changes in TL routes, and accessibility to the TL tower locations. Finally, recommendations are made to help minimize time overruns in PT projects, as well as in other linear power and non-power construction projects in general.

Author(s):  
Milind T. Phadtare

Delay in construction projects is a universal phenomenon. However, the topic is not adequately studied in the Indian context. This paper attempts to identify the causes of delays in construction of budget hotels in India and suggest remedies to avoid some delays. A business group constructing budget hotels across the country is approached for this study. Forty causes of delay have been identified and Relative Importance Index was calculated. The contribution of each category of causes of delay to overall delay in the projects was computed. Remedies such as, joint effort of the participants of the industry, training, coordination between project participants and project timing and scheduling are suggested and validated.


2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Charles Igwe ◽  
Fuzhan Nasiri ◽  
Amin Hammad

PurposeThis study highlights the findings of an empirical study to investigate waste factors (WFs) affecting the performance and delivery of construction projects in developing countries. The objectives of this study are to identify non-physical WFs in developing nations and rank the identified factors based on their degree of influence on the key performance indicators (KPIs) of cost, quality and time.Design/methodology/approachIn total, 34 WFs were identified through a detailed literature review and consolidated using semi-structured interviews with construction practitioners. The statistical analysis involved a normality test using the Shapiro–Wilk test to determine if sample data have been drawn from a normally distributed population, ranking the WFs using the Frequency Index (FI), Severity Index (SI) and Importance Index (IMPI), ranking the WFs based on their effect on the project KPIs of cost, quality and time, and identify clustering structures for the identified WFs to using factor analysis (FA).FindingsThe results revealed ineffective planning and scheduling, rework/repair of defective work and resource quality problems (human, material and equipment) as the three most important WFs affecting construction projects. The factor analyses showed that WFs can be grouped into five interrelated components, suggesting the need for integrated and holistic strategies to overcome the identified WF.Practical implicationsUnderstanding the effects of WFs on construction projects is a first step towards designing holistic solutions to ensuring projects deliver value to the clients and other stakeholders. The findings of this study provide direction to construction practitioners on where to focus appropriate strategies to manage the identified WFs effectively and, therefore, improve the productivity of construction projects.Originality/valueThis study provides the first holistic analysis of WFs affecting the productivity of construction projects in developing countries.


Author(s):  
Samiullah Sohu ◽  
Abdul Fattah Chandio ◽  
Kaleem ullah

The problem of delay in construction industry is a regular phenomenon worldwide, and construction industry of Pakistan has no exception, particularly in highways projects. Delay can be described as the extension of time to complete the construction project. The aim of this paper is to identify main causes of delays in highway projects of Pakistan, and to determine mitigating measures for the identified causes. The research method of this study is based on literature review, questionnaire survey and semi structured interview. From in-depth literature review, twenty-six common causes of delay were found. A questionnaire survey was carried out among construction professionals of highway projects. The causes of delay in highways projects were ranked referring to their Mean values. A semi structured interview was carried out to determine mitigation measures for the top ten causes of delays. The data gathered from questionnaire survey was analyzed using SPSS (Statistical Package for the Social Sciences) while, data collected through semi structured interviews was analyzed using Nvivo software. The findings of this study are expected to be useful for construction parties, to mitigate the delays in highway construction projects of Pakistan.


2021 ◽  
Vol 28 (3) ◽  
Author(s):  
Eduardo Lavocat Galvão de Almeida ◽  
Vitor Amadeu da Silva Feitoza ◽  
Michele Tereza Marques Carvalho ◽  
Ana Beatriz Souza Piña ◽  
Lissa Gomes Araújo ◽  
...  

Abstract Delay is one of the most recurrent problems in the construction industry. It is the cause of major negative consequences on construction projects and it can be the main reason for project failures. Still, there is a need for studies focusing on causes of these delays. The objective of this article is to determine the factors with greatest influence on the backlog of real estate developments, improving the collective list of causes of delays in construction projects. A list of 24 probable causes was assembled and submitted as a survey for 47 professionals in administrative rolls from the building construction sector, more precisely, from private companies. The results were processed utilizing the Relative Importance Index (RII) ranking approach. The outcome shows that the most important delay causes are: rework, poor labor productivity, lack of qualified labor, unqualified labor, and project changes. The results also indicate that there are significant differences of opinion between the professionals of distinct hierarchy positions. The results obtained indicate that there is a transition between the opinions of professionals in different roles regarding the importance of influential factors in the delay of works, according to the managerial level of each group.


2020 ◽  
Vol 25 (2) ◽  
pp. 165-181 ◽  
Author(s):  
Amílcar Arantes ◽  
Luís Miguel D.F. Ferreira

Purpose The purpose of this study is to contribute to the theory and practice of project management in the construction industry by identifying the primary causes and extracting the underlying causes of construction delays and providing recommendations on delay mitigation measures. Design/methodology/approach AA survey was used to identify the importance of 47 causes of delays. The relative importance index was used to rank them, factor analysis was applied to extract the underlying causes and focus group interviews were used for discussion and development of mitigation measures. Findings Six of the ten most important causes are in the top ten universal delays in construction projects. Factor analysis revealed six underlying causes: improper planning, poor consultant performance, inefficient site management, owner influence, bureaucracy and sub-standard contracts. Practical implications The owner/sponsor/client must have adequate engineering and project management skills to be able to evaluate proposals and contractors more accurately, economically and technically. The bidding and contract award process should focus on the most economically advantageous proposal and contracts should provide for mechanisms for managing risks while executing projects. Contractors should select reliable, high-quality subcontractors and suppliers and should have competent site managers. Originality/value This work expands and improves the understanding of the causes of delays in construction projects by providing an empirical study of the causes of delays and respective mitigation measures in Portugal.


Author(s):  
Milind T. Phadtare

Delay in construction projects is a universal phenomenon. However, the topic is not adequately studied in the Indian context. This paper attempts to identify the causes of delays in construction of budget hotels in India and suggest remedies to avoid some delays. A business group constructing budget hotels across the country is approached for this study. Forty causes of delay have been identified and Relative Importance Index was calculated. The contribution of each category of causes of delay to overall delay in the projects was computed. Remedies such as, joint effort of the participants of the industry, training, coordination between project participants and project timing and scheduling are suggested and validated.


Author(s):  
Kranti kumar Myneni

Delays can be well-defined as the escalation of the stipulated time for the completion of the project. Delay is always the major loss to any construction project. In construction projects delay is a very usual thing and it can have an adverse effect on the project’s time and cost. As construction is one of the largest economic activity in India, the effects of delay are still in millions, which surely decreases the GDP of the country. Delay makes the process tardy and management of delay is extremely challenging as most of the projects do not meet the expected requirement and fails to perform within time. Therefore, various types and causes of delays should be studied accurately. There are many researches on construction delays but they talk about the wide-ranging reasons of delay, so there stays a high requirement of a notable and feasible study on delays at different stages of construction process in India. The aim of the paper is to identify the causes of delays at different stages of construction through questionnaire survey in Indian construction industry. Analytical tools used in this research are relative importance index (RII) and spearman’s rank correlation coefficient to rank the sources of delay with respect to its occurrence in the various stages of the construction project. The study concludes based on the correlation coefficient analysis between the construction stages, that the delays associated with before-construction stage is least related, with after-construction stage is third highly related, with construction stage is second highly related and delays associated with average/overall construction is highly related.


2020 ◽  
Vol 10 (3) ◽  
pp. 179-186
Author(s):  
Abdullahi Ahmed Umar ◽  
Rashid Khalfan Al Rizeiqi ◽  
Atef Badr

AbstractDelays on construction projects constitute a major source of concern due to its associated cost increases and loss of revenue. The Gulf Cooperation Council (GCC), of which Oman is a member, faces huge delays on their projects. Such delays in the GCC were among factors fingered in the collapse of the UK’s Carillion. Despite cultural similarities, substantial variability exists within the GCC construction sector which requires country-specific studies. The quest to understand delay causes results from the need to curtail wastes and adjust to the new regime of low commodity prices. There is a dearth of studies specific to the governorate of Muscat exploring the causes of delays and this study seeks to fill that gap. A structured survey questionnaire was administered at two independent events organized by the RICS and ICE in Muscat. The top causes of delays ranked using the Relative Importance Index (RII) include variation and changes in design, Poor site management and supervision, ineffective planning and scheduling, unclear and inadequate details in drawing, poor qualification of the contractors and technical staff, delay in material delivery, and shortage of labor. Contractors were found to be most likely to cause delays among the 6 categories of sources.


2017 ◽  
Vol 8 (3) ◽  
pp. 233-242 ◽  
Author(s):  
Ayodeji Olubunmi Ogunde ◽  
Odje Emmanuel Dafe ◽  
Gbemisola Ajoke Akinola ◽  
Kunle Elizah Ogundipe ◽  
Olayinka Clement Oloke ◽  
...  

Abstract Delay is a common issue faced in the construction industry all over the world especially in developing countries. The aim of this study is to evaluate factors causing delays and their effects on construction projects in Lagos Mega City, Nigeria from the contractors’ perspective. It is predicated on the incessant delay experienced by contractors on construction projects. Purposive sampling method was adopted for the study;. Quantitative data was obtained by administration of One hundred (100) structured questionnaires distributed to contractors of construction project sites in Lagos State and Qualitative data was obtained from interview of key management personnel of the companies and journals. Ranking analysis of the 33 major causes of delays identified through literature review using Relative Importance Index (RII) showed that cash flow problems during construction (RII=4.81), clients’ financial difficulties (RII=4.47) and poor procurement (RII=4.40) were the most importantt causes of delays in construction project sites in Lagos State, Cost overrun (RII=4.92), late payment (RII=4.59) and project extension (RII=4.45) were predominant effects of delay in construction project. Hypotheses testing on relationship between shortage of skilled labour, improper equipment during construction and delay in construction project using One-Way ANOVA showed positive correlation. For improved efficiency and effective project delivery in the industry, proper payment from client (RII=4.78), competent project managers (RII=4.64), the use of experienced subcontractors and suppliers (RII=4.48) should be encouraged to mitigate against delay in construction projects.


2021 ◽  
Vol 21 (3) ◽  
pp. 27-46
Author(s):  
André Brasil Carvalho ◽  
Luiz Maurício Furtado Maués ◽  
Felipe de Sá Moreira ◽  
Caio José Losada Reis

Abstract The delay in civil construction works is observed globally and affects the economy of countries. Therefore, identifying the causes of delays is of paramount importance to minimize their consequences. This paper aims at identifying the causes of delay in construction works and their analysis and existing correlations through statistical factor analysis. The research methodology included a Systematic Literature Review (SLR), a Survey Research through questionnaires and interviews was conducted, as well as the identification of the main causes of delay through the Relative Importance Index (RIL) and the ABC Curve. Finally, factor analysis of the causes of delay was performed, not limiting only to their identification. The results showed that the 12 identified causes are correlated to 4 delay factors, which account for 69.18% of the sample variance: supply management (21.41%); workforce management (20,79%); project management (17.64%) and management of climatic conditions (9.34%). It is concluded hereby that the delay factors mentioned herein can be considered management deficiencies in the projects and that the research has expanded the knowledge on construction delays, thus contributing to the frontier of knowledge to mitigate this problem in several countries, especially developing ones.


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