Precast Concrete & Modular Construction Manufacturing worked example

Transportation Load Planning at 7.2% rigging, permit & delay allowance: a worked example

Here is what the math looks like when conditions slip. We hold every other input steady and drop rigging, permit & delay allowance to 7.2%, then walk the calculation through step by step. Estimate transportation load planning for precast concrete and modular construction manufacturing using production-ready inputs so teams can plan labor hours, schedule the work, or check whether the job fits the available shift time.

The inputs for this scenario

  • Pieces to load and dispatch: 120 units (held at the documented default)
  • Loading & securement rate: 12 units / min (held at the documented default)
  • Rigging, permit & delay allowance: 7.2 % (the input this scenario stresses; the baseline uses 10)

Working through the calculation

  • The calculation starts from the formula this tool documents: Base transportation load planning time = transportation load planning workload ÷ transportation load planning completion rate.
  • Required transportation load planning time works out to 10.72 hr at these inputs, and this is the headline figure for the scenario.
  • Base transportation load planning time works out to 10 hr at these inputs.
  • Transportation load planning allowance applied works out to 7.2 % at these inputs.
  • Transportation load planning completion rate works out to 12 pieces / min at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where rigging, permit & delay allowance sits at 10% and the headline result is 11 hr, this scenario comes in 2.55% below the baseline at 10.72 hr.
  • The practical read: the gap between this scenario and the baseline is entirely attributable to rigging, permit & delay allowance, so recovering it is worth quantifying in dollars before considering equipment or staffing changes. It assumes a steady loading rate across the batch, so it won't capture a single oversized piece needing special rigging that blows past the average — plan that move separately.

Results at a glance

  • Required transportation load planning time: 10.72 hr (headline result)
  • Base transportation load planning time: 10 hr
  • Transportation load planning allowance applied: 7.2 %
  • Transportation load planning completion rate: 12 pieces / min

Run it with your numbers

  • To rerun this with your own numbers, open the live Transportation Load Planning calculator, set rigging, permit & delay allowance to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.