Will AI Replace Locomotive Firers? The Quiet Decline of a Railroad Role

Only 1,600 people in the United States work as locomotive firers. That is not a typo. There is a town in Iowa with more residents than there are professionals in this entire occupation nationwide.

This is one of the smallest occupations tracked by the Bureau of Labor Statistics, and it is getting smaller. BLS projects a -3% decline through 2034. [Fact] The automation risk sits at 39%, the overall AI exposure at just 26%, and yet the existential question for locomotive firers is not really about artificial intelligence. It is about whether the role has a future at all. The threat is not that AI will outperform you. The threat is that regulators and operators will collectively decide your role is no longer required to be there.

A Role Defined by Watchfulness

If you are not familiar with what locomotive firers do, here is the short version: they are the second set of eyes in the cab. They monitor locomotive gauges and warning systems (automation rate: 55%), watch for track obstructions and signal changes (30%), and assist with coupling and uncoupling operations (12%). [Fact] The job exists because operating a train carrying hazardous materials or hundreds of passengers demands redundancy — a human backup for the human engineer. When something goes wrong at 70 mph with 15,000 tons of freight behind you, two sets of trained eyes is the difference between a near-miss and a disaster.

The highest-automation task is gauge monitoring at 55%. [Fact] Modern locomotives already feature sophisticated sensor suites that can detect anomalies in brake pressure, engine temperature, traction motor current, and fuel levels. GE Transportation's Trip Optimizer system has been calculating fuel-efficient throttle and braking patterns on Class I railroads for over a decade. AI-enhanced predictive maintenance systems can identify mechanical issues before they become emergencies. In many ways, the instruments already monitor themselves — the firer is now the validator, not the primary observer.

Track obstruction monitoring at 30% is harder to automate. [Fact] While LiDAR and camera systems are being deployed along major rail corridors, the variability of real-world conditions — weather, wildlife, debris, construction zones, trespassers on the right-of-way — means human visual confirmation remains important. Computer vision is improving rapidly, but the consequences of a miss are measured in lives. After Lac-Mégantic in 2013, where 47 people died when a runaway oil train derailed and exploded in a Quebec town, regulators on both sides of the border tightened the political math around removing humans from train operations.

Coupling and uncoupling at 12% is deeply physical work. [Fact] This is hands-on railyard labor where a crew member walks between cars, manipulates pin-lifters, connects air hoses, sets handbrakes, and verifies that the consist is properly assembled. AI has almost no path to automating this in the near term — the work environment is unstructured, the variation across yards and equipment generations is enormous, and the consequences of a botched coupling include separated cars rolling free.

The Real Threat Is Not AI — It Is Obsolescence

Here is where the locomotive firer story diverges from most AI-and-jobs narratives. The biggest risk to this occupation is not that AI will replace firers. It is that railroad companies and regulators will decide the role is no longer necessary.

The debate over crew size has been raging in the U.S. railroad industry for years. The Federal Railroad Administration's two-person crew rule, finalized in April 2024 under the Biden administration, requires two crew members on most freight trains. Freight railroads — Union Pacific, BNSF, Norfolk Southern, CSX, Canadian National, Canadian Pacific Kansas City — have pushed back for years, arguing that modern safety technology including Positive Train Control (PTC, mandated after the Chatsworth disaster in 2008) makes a second crew member redundant. The Brotherhood of Locomotive Engineers and Trainmen (BLET) and the SMART Transportation Division have fought back, citing safety concerns. [Claim] The outcome of this regulatory battle — which the 2024 rule did not finally settle, since court challenges continue — will determine the future of locomotive firers far more decisively than any AI advancement.

The median salary is $61,740, which is solid for a role that typically does not require a college degree. [Fact] But with only 1,600 positions nationwide and a declining trajectory, new entrants face a challenging job market regardless of AI. The pipeline into the role traditionally runs through assistant engineer or hostler positions at major freight carriers, and those entry-level slots have been narrowing as railroads consolidate operations.

By 2028, overall exposure is projected to reach 41% with automation risk climbing to 54%. [Estimate] That is a significant increase from today's 26% exposure, driven primarily by advances in autonomous train technology and sensor-based monitoring systems. But the policy variable is what really matters for the timeline — sensor capability and regulatory permission are advancing on different clocks.

Autonomous Trains Are the Real Wildcard

While current AI exposure is low, the technology pipeline tells a different story. Several countries are already testing or deploying autonomous freight trains. Australia's Rio Tinto has operated autonomous trains in the Pilbara region since 2018, running iron ore trains across roughly 1,700 km of dedicated track without crews on board. [Fact] In Europe, the European Train Control System (ETCS) Level 3 specifications enable higher levels of automation, and pilot programs from operators like SNCF in France and DB in Germany are advancing. The technology exists — the barriers are regulatory and labor-political, not technical.

If the U.S. moves toward autonomous or single-operator freight trains — a path that operators like Union Pacific have publicly advocated for — the locomotive firer role does not gradually shrink. It disappears. This is not an AI-augmentation story where workers learn new tools. It is a displacement story where the entire position is eliminated. The political pathway to that outcome runs through the FRA, the Surface Transportation Board, congressional rail safety legislation, and union contract negotiations that typically run on five-year cycles aligned with the Railway Labor Act process.

There is also a passenger rail dimension. Amtrak, regional commuter operators like Metra and the Long Island Rail Road, and high-speed rail proposals like the California system all have their own engineer staffing requirements. Passenger operations historically face stricter scrutiny than freight, but the trend lines are similar — more sensors, more automation, fewer human crew per train.

What This Means If You Are a Locomotive Firer

The honest advice is to plan for transition. If you are early in your career, the path forward likely runs through locomotive engineer certification — moving from the support role to the primary operator role. Engineers face their own automation pressures, but the timeline for full autonomous operation in the U.S. is measured in decades, not years. Engineer certification through a Class I railroad's training program typically takes 6-12 months and opens median earnings closer to $75,000-95,000 depending on seniority and operating district.

If you are mid-career, the union advocacy around crew size requirements is genuinely important. Engage with it. The regulatory framework will shape your career trajectory more than any technology advancement in the short term. The FRA's rulemaking process is open to public comment, and lived experience from crew members carries weight in those filings.

And regardless of where you are, the skills that transfer — equipment monitoring, safety compliance, situational awareness, hazardous materials handling — are valued across the broader transportation sector. Adjacent roles include rail traffic controllers, locomotive maintenance technicians, signal maintainers, and freight terminal supervisors. Some firers also transition into FRA inspection roles or short-line and regional railroad jobs, where operations are often less automated than at the Class I carriers. The career is contracting, but the skill set has portability if you start mapping the exit ramps now rather than later.

The Short Line and Regional Railroad Cushion

The Class I freight railroads dominate the conversation about rail automation, but they account for only a portion of total U.S. rail employment. The American Short Line and Regional Railroad Association (ASLRRA) represents more than 600 short line and regional railroads operating roughly 50,000 miles of track — about a third of the U.S. freight rail network. These smaller railroads handle the first-mile and last-mile connections that connect industrial customers to the Class I trunk lines, and their operating environment is fundamentally different from automated mega-corridors.

Short line operations involve smaller train consists, more frequent stops, more switching work, more direct customer interaction, and far less capital investment in automation. The economics simply do not justify autonomous train deployment on a railroad moving 20-50 trains per week across a 100-mile network. For locomotive firers and engineers who are willing to relocate to short line markets, these railroads represent a meaningful career cushion — slower pay growth than Class I work but more stable employment, less automation pressure, and often more interesting day-to-day operating variety.

The trade-off is real. Short line wages typically run 20-30% below Class I scale. Benefits are often weaker, and pension structures are less generous than the Railroad Retirement Board benefits Class I workers earn. But for workers who value job stability and a less automated work environment, the regional rail sector offers a path that the Class I trajectory does not. Industry associations like ASLRRA and the Railway Tie Association also offer continuing education and certification pathways that help workers move between freight, commuter rail, and tourist/heritage rail operations. The Genesee & Wyoming network of short lines, OmniTRAX, Watco, and Patriot Rail are among the larger short line operators where structured career paths exist for crew members willing to work outside the Class I orbit.

See detailed data for Locomotive Firers

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_AI-assisted analysis based on data from Anthropic's 2026 economic impact research and BLS occupational projections._

Update History

• 2026-04-04: Initial publication with 2025 automation metrics and BLS 2024-34 projections.
• 2026-05-18: Expanded coverage of the FRA two-person crew rule (April 2024), Rio Tinto Pilbara automation precedent, ETCS Level 3 in Europe, and engineer transition pathway with salary ranges.