Answer :
Answer:
Conceptual or planning design phase.
Explanation:
Construction management have following phases
Phase 1 :Conceptual or planning design phase.
Phase 2 : Engineering and design phase.
Phase 3 :Procurement phase.
Phase 4 :Execution phase.
Phase 5 :Operation and maintenance phase.
These all phases running in a proper sequence .So at the begging of construction the first phase is conceptual or planning phase.