THE NUMBERS, EXPLAINED
How to use this calculator.
Aggregate throughput worksheet only; does not prescribe ride dispatch operations or safety limits.
Start with your inputs
Enter seats per dispatch, dispatch interval (seconds), downtime per scheduled hour (minutes), observed seat occupancy (%). Keep amounts in the units shown on each field. The example is a starting point, not a recommended value.
| Input | Example value |
|---|---|
| Seats per dispatch | 20 |
| Dispatch interval (seconds) | 120 |
| Downtime per scheduled hour (minutes) | 10 |
| Observed seat occupancy (%) | 80 |
A worked example
With the example inputs above, dispatches per scheduled hour is 25. Change the inputs to explore your own scenario.
| Result | Example answer |
|---|---|
| Dispatches per scheduled hour | 25 |
| Available seat throughput per hour | 500 |
| Expected riders per scheduled hour | 400 |
How this is calculated
Dispatches per scheduled hour
Divide operating seconds by dispatch interval.
Available seat throughput per hour
Multiply dispatches by seats.
Expected riders per scheduled hour
Apply observed seat occupancy to capacity.
Symbols and units
- a
- Seats per dispatch
- b
- Dispatch interval (seconds)
- c
- Downtime per scheduled hour (minutes)
- d
- Observed seat occupancy (%)
Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.
Assumptions and limits
Aggregate throughput worksheet only; does not prescribe ride dispatch operations or safety limits.
Calculations use the values you enter. Blank or invalid inputs show an error instead of silently substituting zero. Results are displayed to useful precision; calculations retain the underlying numeric precision.
Questions about this tool
What does the result tell me?
Dispatches per scheduled hour; Available seat throughput per hour; Expected riders per scheduled hour. The result applies to the method and inputs described above. Check the units and assumptions before using it in a decision.
Why might another calculator differ?
Differences in units, rounding, timing or model definitions can produce different answers. Compare the input definitions and the method, rather than only the final number. For this tool: Aggregate throughput worksheet only; does not prescribe ride dispatch operations or safety limits.
Are my inputs stored or sent to AI?
Calculations on this page happen in your browser. The separate AI question finder sends its submitted conversation to OpenAI; these calculator fields are not sent. Favourites and recent tool names are stored locally. A shared link contains the inputs you choose to include.
Further reading
OpenStax: Describe and Identify Cost Drivers ↗
Background reading; this does not imply endorsement or independent review of SumFizz.
Review status
Software example and browser checks are recorded in our quality report. No external expert review is claimed. Created with coding assistance; calculations run as ordinary browser code.
Read the quality report →