Effects of Time Overrun on Construction Projects within Jos Metropolis, Nigeria
Joshua S. Mangvwat, 1 Ola S. Olumide, 2 Ajalah M. Yahaya3, Paul W. Zakka3 and Fredrick O. Job3
1 Department of Quantity Surveying, Faculty of Environmental Sciences, University of Jos
2Department of Estate Management, Faculty of Environmental Sciences, University of Jos
3Department of Building, Faculty of Environmental Sciences, University of Jos
ABSTRACT
This study was carried out to determine effects of time overrun on construction projects, contractors, clients and consultants within the study area. Using survey method, 11 contractors that completed 26 public construction projects within Jos metropolis were purposively selected to reflect direct active exposure to construction contracts with government ministries. Thirty construction professionals on these projects were randomly selected and interviewed. The most common effects of time overrun are delayed completion, supplementary agreement, strained relations among stakeholders and budget shortfalls characterized construction projects. Regression analysis shows that a unit change in time overrun led to increase in cost by a factor of 0.04. To ameliorate the effects of time overrun, the research recommends that clients engage competent hands to manage projects sites while ensuring they fulfill their own obligation of prompt payment to contractors thereby improving time performance.
Key words: Time, Overrun, Effects, Cost, Construction Projects
