What are the methods for measuring construction progress?

Progress measurement methods: (1) Units completed - count physical units (linear feet, cubic yards), (2) Cost ratio - actual cost / budgeted cost, can be misleading, (3) Weighted milestones - assign percentages to milestones, (4) Start-finish - 0-50-100% or 20-80 rule for ongoing activities, (5) Level of effort - time-based for supervision, management, (6) Physical percent complete - supervisor estimate of actual completion. Method selection depends on activity type and measurability. Consistent application essential for reliable earned value analysis. Regular progress updates enable schedule and cost control.