Fleet Economics · Interactive Model
Find Your Optimal
Utilization Band
Utilization Band
Every fleet faces two opposing costs. Idle trucks bleed dead capital, a real daily cost whether they move or not. A fully deployed fleet with no flexibility creates blocked crew costs, at $3,000 to $5,000 per crew-day. Toggle your fleet strategy below to see how flexibility changes everything.
Fleet Strategy · Toggle to See the Impact
Owned Only
No flexibility buffer
With no flexibility buffer, a single unit failure at high utilization can block a crew immediately. The risk curve rises early and steeply. There is no absorption layer between a truck-down event and lost revenue.
Owned + Lease
Predictable overflow capacity
Leased units act as a contracted buffer. Routine demand swings get absorbed before they cascade into blocked crews. The risk curve flattens noticeably through the mid-utilization range. Your safe operating window widens.
Owned + Lease + Rental
Maximum flexibility
Rental access is the most powerful dampener on blocked crew cost. On-demand capacity means your fleet flexes with the project pipeline. The risk curve stays nearly flat well into the high-utilization range. Rental absorbs what owned and leased capacity cannot.
Dead Capital Cost
Falls as utilization rises
Blocked Crew Cost
Rises as flexibility shrinks
< 73%
Overcapitalized
Dead capital erodes margin. Idle assets cost money every day.
73–81%
Optimal Band
Mixed fleet sweet spot. Own, lease, RPO, and rental in balance.
> 81%
Overexposed
Blocked crew costs spike. One truck down can idle an entire team.
Cost of one idle unit
$198/day
Whether it moves or not
Blocked Crew Cost
$4.5k/day
All-in cost of one blocked crew day
Your Parameters
Unit CapEx
Purchase price per unit, from pickup trucks to specialized vocational assets
$220k
$45k
$500k
Blocked Crew Cost / Day
All-in cost of one blocked crew day, including crew labor, lost contribution margin, field overhead, and penalties
$4.5k/day
$1k/day
$15k/day
How this is calculated
Methodology & assumptions
⌄
Dead Capital Cost · Formula Derived
Daily carry per unit = (CapEx × 22% + $10,000) ÷ 250 working days
Dead capital cost = Idle units × Daily carry per unit
Dead capital cost = Idle units × Daily carry per unit
The 22% ownership cost rate is a midpoint combining cost of capital and economic depreciation. The $10,000 fixed annual amount covers insurance, registration, telematics, and base maintenance.
Blocked Crew Cost · Your Input
Blocked Crew Cost = Crew labor + Field overhead + Lost contribution margin + Penalties + Remobilization
The blocked crew cost is user-controlled so the model can reflect different business realities, crew sizes, and project margins.
Risk Curves · What the Toggle Shows
The three strategy curves are calibrated behavioral models. As owned utilization rises, the probability of a unit failure blocking a crew increases as remaining slack disappears.
The dead capital line is arithmetic. The risk curves are a structural decision model.
Optimal Band · Where the Two Forces Balance
The tipping point is the utilization level where blocked crew cost and dead capital cost are approximately equal. The optimal band is shown as a range around that crossover.
The Takeaway
A mixed fleet, with owned units for base load, leases for predictable growth, RPO to build equity without committing capital, and rental access for demand surges, keeps you inside the optimal band as project demand shifts.