Every bus you own costs money whether it runs or not: insurance, registration, inspections and depreciation. Every route that runs half-empty costs a driver's time and fuel for seats nobody uses. Utilization is how you see both, and it's one of the first things a district or an auditor looks at.
Here's what a school bus fleet utilization rate means, how to work it out, and what to do with the number.
Two kinds of utilization
| Kind | Measures | Worked out as |
|---|---|---|
| Seat utilization | How full the buses are | Students riding ÷ seats on the bus, for each run |
| Bus utilization | How much each bus is used | Days a bus ran routes ÷ school days in the period |
Both matter. A fleet can have every bus on a route every day (high bus utilization) while many of those routes run with a third of the seats full (low seat utilization).
What's a good number
State audits of school districts often use about 80% of seats filled as a rule of thumb for a well-planned route. Very small runs, special needs routes and long rural routes often run below that for good reasons. For buses, every regular bus should be on a route nearly every school day; spares are expected to be lower.
Tip: Count the students who actually ride, not the ones assigned. Assigned riders can be twice the real number.
Working it out
- Count riders on each run for a few weeks, or use the attendance drivers mark at each stop.
- Divide by the bus's seats for each run's seat utilization.
- Count the days each bus was on a route in the period, and divide by the school days.
- List the lowest: runs under half full, and buses that hardly ran.
- Act on them: combine light runs, move a smaller bus onto a light route, or sell a spare you don't need.
What it's used for
- Planning routes: joining two half-empty runs can save a bus and a driver.
- Sizing the fleet: buses with very low use may be more spares than you need.
- Bids and contracts: some districts ask for ridership and load numbers.
- Replacing buses: a smaller bus may fit a route that never fills a big one.
Good to know: Seat counts depend on the students' ages and your state's rules on how many may sit per seat. Use the capacity your state allows for each bus.
Doing it in FleetCommander
Each bus. Under Reports, Fleet utilization shows each vehicle's Status, how many Routes it was on, its Days assigned, its Utilization and the Miles it drove in the dates you choose. Each school bus's record holds its Student capacity. See the Reports guide.
Each run. With student attendance on, drivers mark each student picked up, a no-show or absent on My Day, run by run. The Student ridership report shows each student's Rides, No-shows, Absent (parent called) and how often they Rode, so you count real riders. Reports print or export as CSV, Excel or PDF.
Ava (Beta), the assistant in the app, answers Which buses were used least this month? or Show the fleet utilization report. More on her page.
Related reading
Questions people ask
- What is school bus fleet utilization?
- Two things: seat utilization (students riding divided by seats, for each run) and bus utilization (the days each bus ran routes divided by school days).
- What is a good school bus utilization rate?
- State audits often use about 80% of seats filled as a rule of thumb for a well-planned route, though special needs and rural routes often run lower for good reasons.
- How do you calculate seat utilization?
- Count the students who actually ride on each run and divide by the seats on the bus.
- Why does utilization matter?
- It shows routes that could be combined, buses you may not need, and gives districts the load numbers some contracts ask for.