Abstract
The need to improve project delivery process is one of the leading advocacies of relevant construction industry reports. Improved process is sine qua non for improve performance. Critical to the improvement process, is the need to assess construction process’ capability to meet design and production requirements. The present study examined process mapping of a cable-stayed bridge in the Nigeria’s east-west coastal highway project. Qualitative data was collected through a three phase process mapping protocol using mainly self-generate, one-on-one interview and focus group. Twenty non-related sub-processes were identified from four pre-construction stages: investigation; feasibility; design; and tender. Integrative definition (IDEFO) and Unified Language Modelling (UML) are used to map the feasibility, design and the design sub-processes. The mapping indicates the design sequence is iterative and factually flexible until such a point where functional design satisfies appropriate forcing test. The study provides medium for communicating complex construction functions thereby facilitating common understanding in the way projects are delivered with appropriate information about inputs, output and resources.
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