Originally published at: UP, NS: Merger will create 10,000 single-line service lanes, shift 105k truckloads to rail - FreightWaves
Merger of Union Pacific and Norfolk Southern will create 10,000 single-line rail lanes, annually shifting 105,000 truckloads to rail and improving efficiency by eliminating interchanges.
This article presents a strong and credible explanation of why Union Pacific and Norfolk Southern believe single-line service is central to restoring rail competitiveness. On that point, the article is persuasive. The operational case for eliminating interchange friction — fewer handlings, fewer crew changes, fewer gateways, and clearer accountability — is well grounded in decades of rail operating experience. Rail absolutely performs better as a single-line product than as an interline compromise, and the data cited on single-line market share versus interline service reflects that reality.
Where the article becomes less convincing is in its confidence around truckload conversion.
The assertion that 105,000 truckloads will shift from highway to rail risks overstating what a merger alone can accomplish. The primary constraint on rail market share today is not interchange geometry; it is policy-driven price distortion. Trucking continues to operate on heavily subsidized infrastructure, with highway costs externalized to taxpayers and enforcement uneven across states and carriers. As long as that imbalance persists, trucking will retain a structural advantage that no amount of network optimization can fully overcome.
Single-line rail service may narrow the reliability gap with truckload, but it does not erase the underlying economic reality that trucking remains artificially underpriced. Without changes to federal freight policy — including how highway infrastructure is funded and how carrier oversight is enforced — rail’s ability to reclaim long-haul volume will remain limited, regardless of how efficiently it operates.
In that sense, the article is strongest when it focuses on what the merger can realistically deliver: better rail service quality, reduced handling, improved transit consistency, and a more rational east–west network architecture. It is weakest when it suggests that these improvements alone will drive large-scale mode shift.
The UP–NS proposal may improve rail’s competitive position, but it should not be marketed as a substitute for broader freight policy reform. Network efficiency is necessary, but it is not sufficient.