1. In the context of reticulated services and construction management, which scenario best demonstrates poor coordination in design management?

Question

BlackTom AI · Accepted Answer

Finalising structural drawings before confirming the required electricity load capacity for the building’s peak operation is a clear example of poor design-management coordination.

1. Relevant knowledge points and concepts
- Reticulated services: electrical, plumbing, gas and communications systems that must be integrated into building design. 
- Design coordination: multidisciplinary reconciliation of spatial, load, and routing requirements so architectural and structural elements accommodate services. 
- Electrical load capacity: determines transformer size, main switchgear, cable sizes, conduit routing, floor penetrations, and structural loading for heavy equipment (transformers, switchboards).

2. Step‑by‑step reasoning
- Step 1: Structural drawings define locations of walls, beams, slab openings, and load-bearing elements. These must allow space for major electrical equipment and cable routes.
- Step 2: Required electricity load (peak demand) dictates the size and weight of switchgear, transformer, and cable bundling, and whether additional structural support or larger openings are needed.
- Step 3: If structural design is finalised before the electrical load is confirmed, it may lack required clearances, access, or support capacity.
- Step 4: Resulting outcomes include redesign, costly change orders, construction delays, and potential safety/noncompliance with standards.

3. Calculations/intermediate steps
- No numeric calculation is needed to show the coordination failure; the logical dependency (structural capacity must accommodate electrical equipment determined by load) suffices.

4. Why the correct answer is correct
- The correct option demonstrates a sequence error: a structural decision made without input from a directly dependent discipline (electrical), which is the essence of poor design coordination.

5. Why other options are incorrect
- Option 2 (including electricity connection costs without considering SA Power Networks’ timelines) shows poor scheduling/estimating but not directly design-management failure. 
- Option 3 (coordinating plumbing and gas to share a trench) is efficient, good coordination. 
- Option 4 (separate trades with a shared conduit plan) shows integrated planning and is also good coordination.

6. Conclusion
The best demonstration of poor coordination in design management is: Finalising structural drawings before confirming the required electricity load capacity for the building’s peak operation. This matches the provided answer.

1. In the context of reticulated services and construction management, which scenario best demonstrates poor coordination in design management?单项选择题

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