Trucking Has Less Slack Than Prior Cycles. Shippers Should Rebuild Routing Guides Now.

For much of the recent freight recession, shippers had an unusual luxury: time. Tender rejections were manageable, spot options were available, and routing guides could limp along even when they were built on stale lane assumptions. That window is narrowing.

Logistics Management reported that motor carriers are seeing the first meaningful profitability turn in roughly three years. The article is not calling for an instant boom, and neither should shippers. The economy is still uneven. But the freight market does not need a boom to change procurement behavior. It only needs less excess capacity than shippers are used to.

That is the phrase that matters: less slack. J.B. Hunt leadership told investors that the truckload market is experiencing a structural capacity shift, with customers facing a market that has “fundamentally less slack than it did in prior cycles.” When a large carrier says the cycle is different, shippers should not wait for tender rejections to spike before doing basic hygiene on routing guides.

The capacity turn is showing up before demand feels hot

The important signal is not that demand has suddenly exploded. It is that supply is getting more disciplined after a long weak cycle. Trucking rate increases and carrier profitability were thin for years. As smaller carriers exit, compliance pressure rises, and fleets become more selective, the same freight demand can feel tighter simply because fewer trucks are willing or able to chase it at weak rates.

Logistics Management’s reporting points to several practical signals. Shippers are seeking cheaper modes as rates and fuel surcharges increase. Some freight is shifting from truckload to less-than-truckload. ArcBest’s asset-based transportation unit, primarily ABF Freight, benefited from a tightening truckload market and LTL tonnage outperformance. Most notably, ArcBest’s LTL contract renewals came in 6.3% higher, the strongest renewal rate since Q3 2022.

That 6.3% figure should get procurement teams’ attention. LTL pricing strength often shows up when shippers are no longer confident that every shipment deserves a full truckload move, or when fragmented orders need more flexible networks. It can also reflect carriers protecting yield after years of margin pressure. Either way, it means routing decisions are getting more expensive to get wrong.

A second Logistics Management report on April intermodal volumes adds useful context. Total April intermodal volume slipped 0.6% year over year, but domestic containers rose 8.6%, all domestic equipment increased 8.2%, and the new IANA Intermodal Volume Index stayed above its baseline for three consecutive months. IANA’s Andrew Sibold also noted that trucking headwinds and fuel pressure could create an opportunity for some share shift into intermodal.

That is the market shippers are entering: not a clean capacity crisis, but a more selective environment where mode choice, carrier depth, and routing discipline matter again.

Legal and compliance pressure may tighten usable capacity

Capacity is not just a count of trucks. It is a count of trucks that a shipper, broker, insurer, and customer are willing to use.

FreightWaves argued that recent broker-liability pressure could change how freight is tendered to carriers with poor or missing safety ratings. Its piece cited roughly 1.2 million trucks operating with no FMCSA safety rating and about 300,000 trucks with conditional ratings, framing those groups as capacity that could become harder for brokers to use if legal risk changes carrier-selection behavior.

That is a strong market call, and shippers should treat it as a risk scenario rather than a guaranteed forecast. But the operational lesson is sound. The practical capacity available to a shipper is not the whole truck universe. It is the safe, compliant, financially stable, service-capable carrier base that can meet lane requirements and survive the vetting process.

If procurement teams discover that half their backup carriers are weak on insurance, safety status, visibility integration, EDI/API readiness, or claims performance, they do not really have backup capacity. They have names in a spreadsheet.

Routing guides need rebuilding before the rejection wave

A routing guide built during loose capacity often carries bad habits. Primary carriers keep lanes because they were cheap, not because they are resilient. Backup carriers are listed but rarely tested. LTL conversion rules are vague. Accessorial policies are enforced inconsistently. Spot freight is treated as a release valve instead of a measured exception.

That approach works until capacity tightens. Then the guide fails in a predictable sequence: the primary carrier rejects, the secondary carrier has no real commitment, the broker quotes above budget, the customer-service team escalates, and finance discovers the true cost after the shipment is already gone.

Shippers should rebuild around four operating questions.

First, which lanes actually need primary and backup commitments? High-volume, customer-critical, and hard-to-cover lanes deserve named carrier depth, not generic backup capacity.

Second, when should freight convert from truckload to LTL, partial, pool distribution, or intermodal? The answer should be based on shipment weight, cube, service requirement, destination density, appointment rules, and claims risk—not whoever shouts loudest at 4 p.m.

Third, how early can the team see tender deterioration? Tender rejection trends, late acceptance, appointment misses, and carrier ETA variance should trigger action before the monthly scorecard meeting.

Fourth, which accessorials are controllable? Detention, layover, redelivery, liftgate, limited access, and reclassification costs become more painful when base rates rise. Tight markets punish sloppy dock scheduling and incomplete shipment data.

The playbook for shippers

A stronger routing guide does not have to be complicated. Start with the top 20% of lanes by spend and service sensitivity. Confirm the primary carrier’s real capacity commitment, then validate at least one backup with current rates, operating authority, safety profile, insurance, and visibility requirements. If a lane has seasonal spikes, build those assumptions into the guide now instead of treating them as exceptions later.

Next, create explicit LTL conversion logic. The current market is already showing movement from TL to LTL, and ArcBest’s 6.3% renewal increase suggests LTL carriers know their value. Shippers should decide when consolidation is worth waiting for, when LTL is the better economic choice, and when service promises justify full-truckload cost.

Finally, monitor tender behavior weekly. A routing guide is not a PDF; it is a living operating system. If rejection rates rise, if secondary carriers start quoting above plan, or if accessorials increase on specific lanes, the guide should update before the next bid cycle.

CXTMS helps logistics teams turn those rules into execution: carrier selection, tender sequencing, exception alerts, cost controls, and lane-level performance visibility in one workflow. If your routing guide still reflects the loose-capacity market, now is the time to rebuild it. Schedule a CXTMS demo and see how disciplined transportation execution protects service before the cycle tightens further.