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🏗️ Site Logistics & Sequence Master
The client wants the building three weeks early and you have a crashing budget. Shorten the wrong activity and nothing happens — the finish date doesn't move a single day. Find the activities that actually control the deadline, and watch the critical path jump to a different chain the moment you shorten it too far.
Activity Durations (days)
Highlighted = currently on the critical path.
Live Schedule
—
Project Duration (days)
—
Days Crashed
🎯 Goal: finish in 40 days or fewer — but every day you shorten an activity costs money, so don't waste crashing on activities with float.
This game runs the same verified CPM engine
(
engine/cpm.js) used by the Critical Path Explorer — forward pass,
backward pass, float, and critical-path identification, cross-checked against
an independent Python implementation before publishing. The sequence
constraints below are ordinary construction logic (you cannot pour a slab
before excavating), not a code requirement.Method
Kelley & Walker (1959)Critical Path Method — total float = LS − ES; only zero-float activities control the finish date.