An Evaluation of Traditional Contract Method on Residential Building Projects
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In order of priority of basic human needs, housing is recognized worldwide as
second ·to food and comes before clothing. This high priority coupled with United Nations
aggressive campaign for adequate shelter for all citizenry has forced governments of
nations to embark on direct construction of housing units for their people. In Nigeria,
government direct intervention in housing delivery to the masses took the form of
traditional contract procurement. This paper reports the result of a survey carried out to
know the performance of this procurement method in relation to time and cost overrun.
Valid data from fifty-seven residential projects ranging from one million to one hundred
million Naira in itiated by government between 1993 and 1999 couple with questionnaires
administered on Clients, consultants and contractors were used for the analysis was to
establish whether there is significant difference between the mean time overruns and the
mean cost overruns of traditional contract on residential projects of different cost
categories.
The result showed that the traditional contract performs better in terms of time
overruns (18.98%) when used to procure residential building projects of five million Naira
and below. However the procurement method performs better in terms of cost
overrun(9.13%) for projects above ten million Naira. Attempts were also made to know if a
relationship exists between time and cost in each category.
Keywords
TH Building construction