STB Calculates Five-Year Change in Railroad Productivity

Why It Matters

The productivity figure feeds the rail cost adjustment factor, influencing freight rates and carrier earnings across the industry.

Key Takeaways

• STB sets 1.015 productivity growth for 2020‑24
• Annual growth rate equals 1.5% per year
• 2024 productivity slowed 2.5% versus 2023
• Comment period ends April 15, 2026
• Changes affect quarterly rail cost adjustment factor

Pulse Analysis

The Surface Transportation Board (STB) released its latest five‑year productivity calculation, proposing a geometric mean of 1.015 for the 2020‑2024 period. This figure translates to a 1.5 % annual increase in the efficiency with which railroads convert inputs into freight output. Compared with the 1.014 average for 2019‑2023, the modest 0.1 % rise reflects a slight rebound after a 2.5 % slowdown in 2024, when the annual factor fell to 1.014 from 1.040 the year before. The STB’s methodology, a moving five‑year geometric average, has been the standard for cost‑recovery adjustments since 1989.

The productivity index directly feeds the quarterly rail cost adjustment factor (RCAF), the mechanism that aligns carrier revenues with long‑run efficiency gains. A higher productivity number typically reduces the RCAF, tempering rate hikes for shippers while preserving carrier margins. Conversely, the 2024 dip signals a potential upward pressure on the RCAF for the upcoming quarters, which could ripple through freight contracts and logistics planning. Stakeholders—from Class I railroads to regional operators and major commodity shippers—watch these adjustments closely, as they affect budgeting, pricing strategies, and competitive positioning.

The STB has opened a comment window until April 15, 2026, inviting parties to challenge the data or computational assumptions. Submissions must include detailed workpapers, fostering transparency and enabling peer review. Historically, disputes over productivity calculations have led to modest revisions, but the board’s willingness to entertain alternative estimates underscores the high stakes attached to rail cost recovery. For investors and analysts, the outcome offers insight into regulatory trends that could shape the rail sector’s cost structure and profitability over the next regulatory cycle.