CHANGE ORDER: LESSONS FROM NIGERIAN ROAD CONSTRUCTION AND IRANIAN ROAD CONSTRUCTION PROJECTS [ READ ]
Umar Isma’il, Muhammad Lawal Yahaya and Danjuma, Muhammad Sani
Due to the increasing complexity of the modern projects and the impacts of technological advancement, change orders become more prevalent on construction projects in most developing countries. This research is a comparative study aims to compare the causes of change order in the Nigerian road construction and the Iranian road construction projects so as to contain and curtail its occurrence in the forthcoming projects in Nigeria. A quantitative research approach was undertaken for this purpose. Total of 71 semi structured questionnaires were distributed to the entire respondents, 43 questionnaires were successfully retrieved representing 60% of the total, and from the survey conducted the study is able to isolate 10 critical causes of change orders in both countries. It was observed that scope of work not well defined, differing site condition, acceleration of work, quality improvement and owners’ financial problem among others were some of the critical factors causing change orders in road construction projects. Further analysis was also carried out using T-test to find out if there is any significant difference in the opinion of the respondents in both countries, finding reveals that there is no difference in the opinion of respondents in both Nigeria and Iran pertaining the causes of change order in the road construction projects.
Umar Isma’il, Muhammad Lawal Yahaya and Danjuma, Muhammad Sani
Due to the increasing complexity of the modern projects and the impacts of technological advancement, change orders become more prevalent on construction projects in most developing countries. This research is a comparative study aims to compare the causes of change order in the Nigerian road construction and the Iranian road construction projects so as to contain and curtail its occurrence in the forthcoming projects in Nigeria. A quantitative research approach was undertaken for this purpose. Total of 71 semi structured questionnaires were distributed to the entire respondents, 43 questionnaires were successfully retrieved representing 60% of the total, and from the survey conducted the study is able to isolate 10 critical causes of change orders in both countries. It was observed that scope of work not well defined, differing site condition, acceleration of work, quality improvement and owners’ financial problem among others were some of the critical factors causing change orders in road construction projects. Further analysis was also carried out using T-test to find out if there is any significant difference in the opinion of the respondents in both countries, finding reveals that there is no difference in the opinion of respondents in both Nigeria and Iran pertaining the causes of change order in the road construction projects.
