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How to Run a Fleet Utilization Audit and Right-Size Your Fleet Without Disrupting Service

Written by Phelps Rogovoy | Nov 24, 2025 2:31:16 PM

Many public-sector fleets know they have a utilization problem, but they don’t know where it lives. One department says they need more vehicles. Another has units parked most of the week. Leadership wants cost control, and staff want reliability. A utilization audit is the simplest way to move past assumptions and build a clear, defensible plan.

A strong audit does not have to be disruptive or complicated. With the right data and a structured approach, you can identify underused vehicles, rebalance supply across locations, and right-size your fleet while maintaining service levels.

What a Utilization Audit Actually Measures

A utilization audit looks at how each vehicle is used compared to how it is expected to be used. The goal is to understand demand, availability, and efficiency across the entire fleet.

Key measures include:
• Miles driven per vehicle per month
• Reservation frequency and duration
• Hours in use compared to hours available
• Idle time by vehicle type and location
• Reservation-to-use ratio for motor pools
• Seasonal or program-based spikes in demand

When these measures are captured consistently, they reveal where resources are mismatched and which assets no longer serve their purpose.

Why Right-Sizing Requires Audit Data

Right-sizing is often misunderstood as “cutting vehicles.” In reality, right-sizing is about matching fleet size to real operational demand. That might mean retiring some vehicles, reallocating others, or increasing access through shared motor pools to reduce duplication.

Without audit data, right-sizing becomes a political conversation. With audit data, it becomes an operational decision. Utilization numbers allow you to show leadership and departments exactly why a vehicle should be shared, reallocated, or removed.

A Simple, Repeatable Audit Process

Step 1: Centralize your usage data
If your data lives across spreadsheets, emails, and separate systems, your audit will stall. Start by consolidating reservation records, mileage, and vehicle location information into a single view. Fleet management software makes this step dramatically easier.

Step 2: Segment the fleet by use case
Compare like with like. Group vehicles by class, mission, or location so your benchmarks are meaningful. A sedan pool and a utility truck program should not be measured against the same threshold.

Step 3: Establish a baseline threshold
Set a realistic utilization target for each segment, based on real demand. For example, a shared sedan pool may target a higher reservation rate than a specialty-response unit.

Step 4: Identify outliers
Look for both ends of the spectrum:
• Low-use vehicles that fall below your threshold
• Overbooked vehicles that signal unmet demand

Outliers are the first place to focus right-sizing decisions.

Step 5: Review causes, not just numbers
Before action, confirm why a vehicle is underused. Common causes include location mismatch, policy barriers, driver resistance, after-hours access issues, or maintenance downtime. If the cause is fixable, solve that first.

Step 6: Take action in phases
Right-sizing should be staged, not abrupt. Start with reallocation, then pooling, then retirement of assets that remain low-use after changes are implemented.

What Often Gets Missed in Audits

Most fleets focus only on miles driven, which can hide real patterns. A vehicle may have low mileage but high reservation demand for short trips. Another may have moderate mileage but sit idle for long stretches.

Reservation-to-use ratios reveal ghost reservations and no-shows. Dwell time highlights location imbalances. Policy enforcement data shows whether access restrictions are suppressing utilization.

The best audits combine multiple metrics so the story is accurate and defensible.

Case Study: Adapt Integrated Health

Adapt Integrated Health managed vehicles spread across four counties, with some sites reporting shortages and others holding surplus vehicles for occasional use. Using FleetCommander utilization reports, Adapt compared demand and idle time across locations. The data showed a significant number of low-use vehicles that could be reassigned into shared pools.

After right-sizing through reallocation and pooling, Adapt reduced projected fleet size needs by 55 percent while expanding service access. Staff gained reliable vehicle availability across sites, and the organization redirected savings into operations instead of idle assets.

The Bottom Line

A utilization audit gives you clarity, credibility, and control. It turns competing opinions into measurable facts, and it creates a roadmap for right-sizing that protects service quality while reducing waste. For public-sector fleets, that combination is rare and powerful.