Commercial Vehicle, Bus & Coach Manufacturing worked example

Option Complexity at 56% option control effectiveness: a worked example

Here is what the math looks like when conditions slip. We hold every other input steady and drop option control effectiveness to 56%, then walk the calculation through step by step. Estimate option complexity load for mixed-model commercial vehicle, bus, or coach builds.

The inputs for this scenario

  • Customer option instances built: 145 units (held at the documented default)
  • Mixed-model production period: 40 hr (held at the documented default)
  • Option control effectiveness: 56 % (the input this scenario stresses; the baseline uses 78)

Working through the calculation

  • The calculation starts from the formula this tool documents: Gross option complexity = customer option instances built ÷ mixed-model production period.
  • Effective throughput works out to 2.03 vehicles / hr at these inputs, and this is the headline figure for the scenario.
  • Raw throughput works out to 3.63 vehicles / hr at these inputs.
  • Efficiency works out to 56 % at these inputs.
  • mixed-model production period works out to 40 hr at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where option control effectiveness sits at 78% and the headline result is 2.83 vehicles / hr, this scenario comes in 28.21% below the baseline at 2.03 vehicles / hr.
  • The practical read: the gap between this scenario and the baseline is entirely attributable to option control effectiveness, so recovering it is worth quantifying in dollars before considering equipment or staffing changes. The effectiveness factor is a judgment-based input — if your estimate of how well complexity is controlled is wrong, the effective throughput will be too.

Results at a glance

  • Effective throughput: 2.03 vehicles / hr (headline result)
  • Raw throughput: 3.63 vehicles / hr
  • Efficiency: 56 %
  • mixed-model production period: 40 hr

Run it with your numbers

  • To rerun this with your own numbers, open the live Option Complexity calculator, set option control effectiveness to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.