Rail, Transit & Rolling Stock Manufacturing worked example

Bogie Assembly Throughput at 99% expected bogie line uptime: a worked example

Push expected bogie line uptime up to 99% and the picture changes. This example computes every intermediate figure at that operating point. Use it when bogie assembly throughput in rail, transit and rolling stock manufacturing is being asked to take on more work and you need to know if there is room.

The inputs for this scenario

  • Bogies completed per assembly cycle: 4 units / cycle (unchanged)
  • Available assembly cycles in the period: 480 cycles (unchanged)
  • Expected bogie line uptime: 99 % (raised for this scenario; the documented default is 90)
  • Expected first-pass yield: 97 % (unchanged)

Working through the calculation

  • Applying the documented formula (Gross bogie assembly throughput capacity = bogie assembly throughput output per cycle × available bogie assembly throughput cycles) to the inputs above produces each figure below.
  • At this operating point the engine returns 1,844 units for good bogie assembly throughput capacity, the number this scenario is built around.
  • At this operating point the engine returns 1,920 units for gross bogie assembly throughput capacity.
  • At this operating point the engine returns 19.2 units for bogie assembly throughput downtime loss.
  • At this operating point the engine returns 57.02 units for bogie assembly throughput yield loss.

How this compares with the baseline

  • Against the tool's baseline example, where expected bogie line uptime sits at 90% and the headline result is 1,676 units, this scenario comes in 10% above the baseline at 1,844 units.
  • It multiplies output per cycle by available cycles to get gross capacity, then discounts by uptime and first-pass yield to give good bogie output. The value of this scenario is the size of the gap it exposes: that gap, priced out over a year, is the budget you can justify spending to close it.

Results at a glance

  • Good bogie assembly throughput capacity: 1,844 units (headline result)
  • Gross bogie assembly throughput capacity: 1,920 units
  • Bogie assembly throughput downtime loss: 19.2 units
  • Bogie assembly throughput yield loss: 57.02 units

Run it with your numbers

  • Every input above is editable in the live Bogie Assembly Throughput calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.