When transportation and supply chain leaders look to cut emissions, alternative fuels often get top billing. But for many shippers, the fastest gains come from optimizing the network they already operate.
Breakthrough’s latest State of Transportation Report found that half of shippers are prioritizing routing and network design improvements in 2026. This comes as they face pressure to control costs and reduce emissions, especially as diesel fuel volatility intensifies and carriers pass rising costs through to customers.
In that environment, fleet optimization gives shippers a practical way to improve transportation performance. When done well, it can reduce fuel consumption, lower emissions, and deliver immediate cost savings.
The most effective near-term decarbonization strategy is often not a new fuel plan, but better, more continuous management of the existing network. That means treating fleet optimization as an everyday management practice — not a one-time exercise.
The shift from periodic measurement to always-on management
Transportation and supply chain leaders have historically approached sustainability as a reporting initiative. Companies measured emissions periodically, set and published targets, and worked to meet ESG expectations.
But today, even as political pressure leads companies to say less about decarbonization, Breakthrough’s research found that 69% remain very or somewhat likely to reduce emissions this calendar year. The connection is clear: The same decisions that reduce emissions often reduce operating costs and volatility exposure.
That’s why leading shippers are rethinking how transportation data is applied. Those making this transition successfully are embedding emissions and fuel insights directly into workflows to inform daily planning.
For example, a shipper could use lane-level emissions data to identify routes where intermodal transportation is viable, then adjust shipment timing to make that shift possible. The outcome is lower emissions intensity and reduced transportation costs.
On the other hand, a different shipper might use granular emissions and fuel data to pinpoint regions where renewable natural gas is cost-competitive with diesel. That insight can support a transition of part of a dedicated fleet while improving emissions performance.
No two strategies look the same. But companies making measurable progress tend to share one trait: They move sustainability beyond reporting and into the transportation decisions that affect cost, service, and emissions every day.
Practical actions behind continuous cost and emissions optimization
Many organizations already have the transportation, fuel, and emissions data needed to identify performance improvements. What they lack is a consistent way to connect that data across systems and apply it to everyday decisions.
Inefficiencies often show up when emissions, fuel, and transportation decisions are managed separately. Continuous optimization helps shippers find those inefficiencies earlier and act on them more consistently.
- Reduce unnecessary miles and improve utilization
Routing and network optimization remain among the most direct ways to reduce emissions.
Fewer miles driven means less fuel consumed. Load consolidation and improved fill rates also play a role here. Fewer trucks moving the same volume often leads to better asset utilization and lower emissions intensity.
2. Build flexibility into mode and timing decisions
Mode conversion is another important lever, especially when you can shift appropriate freight to intermodal.
In many cases, small changes to shipment timing and planning can create enough flexibility to use more efficient modes or consolidate freight without compromising service.
3. Apply alternative fuels where they make economic sense
Targeted alternative fuel adoption plays a role, too, particularly with renewable natural gas or renewable diesel in lanes and regions where those fuels are already cost-competitive.
Technology partners can help you consolidate data to evaluate cost, availability, and emissions together so you can make the best fuel decision for each lane in your network.
Small transportation decisions compound quickly. A routing change or a better-filled truck may seem small on its own, but when applied consistently across a network, those decisions can create measurable progress in real operating conditions.
The best results come when these strategies are supported by continuous benchmarking and optimization loops that help you identify recurring inefficiencies. These practical, near-term actions move fleet optimization from a periodic exercise to a continuous discipline.
Start with the network you have
Transportation decarbonization does not have to begin with a major change or investment. For many shippers, the most immediate gains come from managing the network they already have more precisely.
Fleet optimization turns transportation data into practical emissions reductions: fewer unnecessary miles, better utilization, and smarter decisions about mode shifts or alternative fuels.
As fuel volatility, cost pressure and emissions expectations intensify, the companies that embed optimization into everyday planning will be better positioned to reduce emissions without losing control of cost or service.
