Cpm Pert And S Curve Training Module2D
Module 2: CPM Fundamentals and Critical Path Scheduling - Cpm Pert Scurve Training Module02 Crashing Tradeoff
Network logic, activity sequencing, forward pass, backward pass, float analysis, and critical path control for construction management.
Open the complete lessonInteractive Time-Cost Crashing Simulator
Compress schedule duration by crashing activities. Observe cost tradeoffs in Philippine Pesos (₱) and critical path shifts.
Daily Overhead (Indirect Cost)
Overhead Rate₱30,000/day
Crash Activities
Activity A (Site Prep) — ₱25,000/day5d (Crashed 0d)
Activity B (Excavation) — ₱40,000/day8d (Crashed 0d)
Activity C (Formwork) — ₱20,000/day6d (Crashed 0d)
Network Status & Path
Time-Cost Optimization Curve
Direct Indirect Total Cost
Project Duration13 days
Total Cost₱690,000
Critical PathA → B
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Time-Cost Tradeoff ChallengeAdjust the sliders to crash activities on the critical path. Can you find the duration that achieves the lowest total cost (the absolute lowest point of the purple total cost line)?(Target: Find the optimal duration of 11 days costing ₱680,000)
Pedagogical Insights
By crashing critical activities (A or B), you successfully compress the project duration. Crashing non-critical activity C reduces its duration but increases direct cost without shortening the project duration, wasting funds. Furthermore, when you crash A and B enough, the parallel path (A-C) becomes critical too, creating a dual critical path. At this point, compressing B further will yield no benefits unless C is compressed simultaneously.
Related simulations
Module 1: Introduction and Rationale - Cpm Pert Scurve Training Module Outcomes MapModule 1: Introduction and Rationale - Cpm Pert Scurve Training Module Project Control WorkflowModule 2: CPM Fundamentals and Critical Path Scheduling - Cpm Pert Scurve Training Module02 Network BuilderModule 2: CPM Fundamentals and Critical Path Scheduling - Cpm Pert Scurve Training Module02 Forward Pass