The project to build the seventh baggage reclaim extension at Heathrow Terminal 4 was completed for pound;225 000 less than the original cost plan. When agreed client variations are added, this represents a saving of 9.7. The project was also completed in 30 weeks - six weeks ahead of schedule - and with only 41 agreed defects at handover. Construction manager Mace puts the savings down to the use of Activity Based Planning. This is a system for planning and monitoring the work of subcontractors by drawing up detailed plans for each trade on a weekly basis.
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