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By Jason Schroeder
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Macrolevel TAC Planning Fundamentals
📌 The macrolevel TAC plan serves as the strategic plan and constitutes the contractual promise, derived from the slowest reasonable speed plus risk analysis.
🗓️ The macro plan typically uses a five-day TAC time as a standard reference, aligning work within weekly intervals common in the industry.
🔗 It structures work using programs, milestones, phases, zones, TAC time, trains, and trade flow to create a high-level overview of project duration and budget confirmation.
Zone Identification and Work Density
📐 Zones should be leveled by work density, not by area, using tools like work density analysis based on architectural drawings (e.g., grid mapping).
🧩 The process involves identifying observable constraints (physical limitations) first, then mapping work density scores across defined grid blocks to determine size.
🔄 The goal is to adjust zone boundaries until their calculated work densities are close (ideally within 10%) to ensure balanced flow.
From Macro Guess to Data-Driven Promise
🔢 The initial zone count in the macro plan is a guess; this guess is then tested using the macro calculator with fixed parameters (5-day TAC time and guessed zones).
📊 The calculator determines viable zone counts based on achieving 35% to 50% realized flow potential, adjusting the initial guess to a data-backed promise regarding the number of TAC wagons (work packages) needed.
📈 This refined macro plan (the promise) is distinct from the norm level plan (the tactical target), which incorporates buffers for optimized, faster execution.
Key Points & Insights
➡️ The macrolevel TAC plan is essential for establishing overall duration, confirming the budget, and onboarding builders to the single-page strategic plan.
➡️ Buffers are always required in a production plan; the assignment targets including 5% to 20% buffers within the sequenced TAC wagons.
➡️ Strategic planning (Macro) differs from tactical execution (Norm); the macro is the "art form" focusing on strategy, bottlenecks, and gaining time, while the norm is the "engineering plan" focused on disciplined process execution.
➡️ Using TAC planning avoids the chaos of CPM by incorporating trade flow and buffers, leading to healthier project durations and the ability to finish 1% to 5% earlier than projected.
📸 Video summarized with SummaryTube.com on Dec 10, 2025, 02:38 UTC
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Full video URL: youtube.com/watch?v=97rABafhyB0
Duration: 1:08:00

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