A blended cost per mile can materially misstate load profitability because driver pay, equipment ownership, overhead, tolls, and trailer costs are not all caused by miles. FreightMath’s Segment Level Costing routes each general-ledger dollar to the operational activity that actually caused it, creating GL-reconciled profitability at the segment, load, lane, and customer level.
Ask most carriers how they cost a load and the answer is familiar: choose a blended cost per mile, multiply it by the miles, and use the result. The method is fast, but it treats unlike costs as though distance causes all of them.
Driver compensation and fuel may follow miles. Equipment depreciation and dispatch salaries accumulate with time or per load. A 300-mile short-haul move that consumes 18 hours does not have the same cost profile as a 300-mile express move completed in six hours. Blending those costs together can misprice the work before a quote is submitted.
What Makes SLC Different
Segment Level Costing is the costing engine at the core of FreightMath. Rather than applying one blended rate, it sends every dollar from the carrier’s general ledger through an allocation engine that uses the basis that best explains how the cost was incurred.
Variable costs such as fuel and driver wages generally follow miles. Overhead costs such as revenue-equipment fixed charges and non-driver compensation follow hours under power or a proportional per-load charge. Certain known costs, particularly driver and owner-operator settlements, bypass the general pool and are assigned directly to the segment where they belong.
Two inputs work together:
- The GL cost pool, standardized through MapLedger into the FreightMath Standard Chart of Accounts.
- Segment-level operational activity, including practical miles and collared transit hours for loaded and deadhead movements.
The cost pool divided by the relevant activity produces the allocation. The resulting operating ratio can be reconciled back to the trial balance.
Five Methods, Zero Double-Counting
Every GL cost is routed through one of five allocation methods. Together, the methods prevent costs from being assigned on the wrong basis or counted twice.
- Variable: Fuel, driver wages, maintenance, insurance, and other mileage-driven expenses are distributed on a cost-per-mile basis.
- Overhead: Revenue-equipment fixed costs, non-driver compensation, technology, administration, and other time- or load-driven costs are distributed by hours under power or a proportional per-load charge.
- Pre-Standard: Actual driver or owner-operator settlements and other direct charges are assigned to the specific segment rather than blended across the fleet. Network-level planning and billing charges can also be applied directly across orders.
- Tolls: Actual toll amounts from third-party lane-routing data are applied to the segment that uses the toll corridor.
- Trailer Pool: Drop-trailer ownership cost at designated pool locations is distributed using trailer-days or trailer-hours at origin and destination.
Because every cost is routed once while all methods run together, the total ties back to the GL.
The Pre-Standard Carve-Out: Actual Settlements, Actual Costs
The Pre-Standard method is where SLC most clearly departs from conventional costing. Owner-operator settlements, custom driver-pay arrangements, and direct load-specific charges are known amounts tied to particular segments. Averaging them across all activity would dilute their accuracy and assign cost to loads that did not incur it.
SLC extracts those amounts from the distribution pool before the general allocation runs and applies them directly to their assigned segments. The final segment cost includes both the general allocation and the direct Pre-Standard amount. FreightMath preserves the direct portion in a separate column so analysts can distinguish assigned costs from distributed costs.
Why This Matters for Owner-Operator Carriers
For fleets with substantial owner-operator activity, conventional CPM costing can spread purchased-transportation cost across the wrong loads. The Pre-Standard carve-out places the actual settlement on the segment the owner-operator ran. SLC also excludes general-pool costs that do not apply to that move, such as company-paid fuel or tractor fixed expense.
The result is an operating ratio for the owner-operator load based on its actual cost rather than a fleet-wide approximation.
The Segment Is the Unit of Truth
SLC works at the segment level rather than beginning with the order or the whole network. A segment is one operational leg: a loaded movement from origin to destination, including stops, or an empty movement between loads, including relay empty moves.
Each segment carries its own practical miles, collared transit hours, labor group, and trailer status. Revenue flows from the order to its loaded segments in proportion to loaded costing miles. Costs flow from the GL to segments through the allocation engine.
Profitability emerges at the segment as revenue minus cost, expressed as an operating ratio. Segments can then be rolled into orders, lanes, customers, or the full network without changing the mathematical foundation.
Deadhead Costs Have To Land Somewhere
Every empty mile consumes distance and time without producing revenue. Which order absorbs that cost changes individual load operating ratios and lane-profitability rankings, even though the network’s total cost does not change.
FreightMath supports three deadhead-attribution models:
- Pre-Allocation: Assign the empty move to the next loaded order as the cost of acquiring that load.
- Post-Allocation: Assign the empty move to the prior delivered order as its repositioning cost.
- Split Attribution: Divide the empty cost evenly between the preceding and following orders.
The GL allocation is identical under all three views. Only the order receiving the empty cost changes. The FreightMath Dashboard allows analysts to compare the models before adopting a reporting standard.
A Foundation, Not a Feature
Segment Level Costing is not an additional report layered onto FreightMath. It is the mathematical foundation for operating ratio by load, lane, customer, driver, and network.
When a carrier asks whether a lane is profitable or whether an account should be repriced, the answer rests on costs that can be traced to the trial balance, allocated using methods that reflect how they were incurred, and placed on the segment where the work happened. That is the practical meaning of making decisions with FreightMath rather than emotion.