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An Investigation Into Design Errors And It's Impact On Initial Cost Of A Construction Project
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1.2 STATEMENT OF THE PROBLEM
Design errors indicate the total design
in-effectiveness of a project. Major design quality problems occur
during construction when errors, omissions and ambiguities in plans and
specifications become evident (Davis and Ledbetter, 1987). This
statement directs that the inadequacies in the plans and specifications
are the major causes of changes to the contract. There have been extreme
examples of design errors such as numerous building collapse in Nigeria
- projects that have wrought disaster after the construction are
completed. These are examples of design errors that escaped the close
scrutiny of all parties. One or two major errors that can be corrected
with only cost considerations and little effect on the schedule can
impact projects. The projects that really suffer are those with many
small errors (design, rework or change of scope) which when finally
added up cause major impacts on the cost and schedule growth. Through
Davis and Ledbetters research it was determined that "accuracy of the
design documents" was the most critical of the criteria used in the
initial evaluation of design effectiveness. This accuracy was further
described as the concern for the frequency and impact of errors in the
specifications and drawings. This is due to the fact that the drawings
and specifications are the most "readily identifiable outputs of the
design process." It is evermore important that the quality control of
designs be addressed during the planning phase and closely monitored
during the construction phase.
1.3 OBJECTIVES OF THE STUDY
The
main aim of the study is to investigate how design errors can affect the
initial cost of a project. The specific objectives are:
To determine what constitutes a design error.
To examine the contributing factors to design errors in Nigeria.
To examine how these factors can affect initial cost and growth of a project.
RESEARCH QUESTIONS
What makes or contributes to a design error?
What are the factors that lead to design errors?
What effect can design errors have on initial cost and growth of a project?
1.5 HYPOTHESIS FORMULATION
Hi: There is no significant relationship between design error and initial project cost.
Ho: There is significant relationship between design error and initial project cost.
1.6 SIGNIFICANCE OF THE STUDY
This
study gives a clear insight into the various ways in which contractors
in the construction companies in Nigeria can maximise profits and reduce
initial cost through effective and efficient contract planning and
management. The study also gives a clear insight into the various
effects of design errors on the cost of a project. The findings and
recommendations of the researcher will help in building a strong and
better project management guideline for contractors in Nigeria.
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