Impact of construction-related rework on selected Ugandan public projects

Abstract

Purpose -The purpose of this paper was to assess the magnitude of the impact of construction-related rework on selected project budgets and schedule in public building construction in Uganda. The magnitude of construction-related rework was the mean determined over construction contracts under a selected project and expressed as a percentage of the construction contract sum. Design/methodology/approach -A single case multi-unit study approach was adopted. A case study protocol was prepared that included a checklist, observation schedules and an interview guide. The three instruments were used to collect data from building contractors and end-users (the teaching staff and medical assistants). Representatives of the client entity and the end-users provided sufficient project documentation and related supplementary information for the study. Findings -Construction-related rework was predominantly attributable to design information omissions, unacceptable workmanship and inadequate supervision of the contractor. Lightning conductor, electrical and roofing installations were the building elements that had the highest frequency of rework. It was further determined that the mean percentage of rework related impact on project budget and schedule was approximately 4.53 and 8.42 per cent, respectively. Originality/value -The findings inform policy makers about likely areas that contribute to significant wastage and value loss in quality management of public sector projects. The research advocates for improved data collection protocols, integration of adequate design management and a whole life value philosophy during the public building construction process.

Systemic View to Understanding Design Change Causation and Exploitation of Communications and Knowledge

“…Likewise, Chang, Shih, and Choo’s (2011) study found an average of an 8.5% cost increase due to design changes in Taiwan, which concurs with Cox, Morris, Rogerson, and Jared’s (1999) claim that the cost associated with design changes was 5% to 8% in the United Kingdom. The reasons are obvious: Design change–induced rework results in a higher cost due to the further efforts of disassembling and restarting some completed works (Emuze, Smallwood, & Han, 2014; Yap, Low, & Wang, 2017), resulting in the loss of project productivity (Cooper & Reichelt, 2007) and higher wastage (Kakitahi, Alinaitwe, Landin, & Mone, 2016). These non-value-adding activities generate multiple knock-on effects that result in delays and disruptions to the construction workflow (Howick, Ackermann, Eden, & Williams, 2009).…”

Factors Causing Rework and Their Impact on Projects’ Performance in Egypt

“…Hence, various researchers have nominated construction-related factors as a significant rework causes (e.g. Enshassi et al, 2017;Raghuram & Nagavinothini, 2016;Kakitahi et al, 2016). This group consists of 11 critical factors of the rework causes, as shown in Table 9, which are ranked according to their impact, as the experts have named.…”

“…Rework is known to contribute to waste and value losses in building design and construction (Kakitahi et al, 2013), and it has been considered as one of the key factors responsible for cost and schedule overruns in construction projects (Shibnai & Salah, 2015;Love et al, 2010;Hwang et al, 2009;Aiyetan, 2013;. According to the study by Kakitahi et al (2016), the impact of rework on project cost and schedule has been calculated to be approximately 4.53% and 8.42%, respectively. Josephson et al (2002) carried out a case study survey and reported that the cost of rework was 4.4% of the construction value, and the time spent on reworking was 7.1% of the total work time.…”

“…Accordingly, it several research efforts have been expended in this area to identify the causes of rework and their impact on performance of both cost and time of project for different construction sectors and countries (e.g. Hwang et al, 2009;Josephson et al, 2002;Li & Taylor, 2014;Love & Edwards, 2005;Mahamid, 2016;Palaneeswaran, 2006;Simpeh, 2012;Enshassi et al, 2017;Miri & Khaksefidi, 2015;Kakitahi et al, 2016;Jarkas, 2015). However, rework is still a critical global phenomenon in the construction industry.…”

Investigating Rework: Insights from the Malaysian Construction Industry

“…Regarding the impacts of rework, Table 4 indicates the ratings provided by the respondents. Global studies have elucidated rework as an endemic phenomenon that can significantly undermine project success and team morale (Kakitahi et. al., 2016;Love et.…”