Assembling A Collaborative Team - Other - Page 14
Assembling a Collaborative Project Team
The impact of change: an example
By way of example, the following considers the implication of introducing an additional
escalator into the ground floor of a shopping centre at different RIBA stages.
Stage 2 – Concept Design
The architect’s information needs to be amended to include the escalator and the
Cost Information has to be adjusted accordingly.
Stage 3 – Developed Design
The change is instructed via the project Change Control Procedures after a
number of studies have been undertaken and the architect’s information is
amended followed by the structural and building services engineers’ information.
The Cost Information is also adjusted accordingly.
Stage 4 – Technical Design
Process as Stage 3; however, the architect must also alter the ground floor
finishes and ceiling information and the balustrading setting out for level 1. The
structural engineer must amend the substructure information as well as the
detailed steelwork and slab information for level 1, and the building services
engineer has to alter the electrical schematics and light fitting layout information
on receipt of amended ceiling information from the architect. Depending on the
timing, the specialist subcontractor providing the escalators would have to amend
their information to show the additional escalator, the steelwork contractor would
have to alter the secondary steelwork information and the contractor would have
to consider any logistics issues arising from the changes. The lead designer would
also be required to undertake additional coordination and integration exercises.
Stage 5 – Construction
Process as Stage 4; however, work already undertaken on site must be considered.
Adjustment of the cast ground floor slab is required, secondary steelwork has not
yet been delivered to site but requires modification and the ground floor tiling works
have to be reprogrammed and the critical path reviewed.
Summary
This example demonstrates the additional work triggered by change and underlines
the increased complexity at each stage. The cost of change will directly relate to the
amount of activity undertaken, significantly increasing when fabricated or completed
works on site have to be altered.
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