By James Simons-
In a sweeping challenge to decades‑old rail practices, the newly appointed general secretary of the Associated Society of Locomotive Engineers and Firemen (Aslef) has reignited a long‑running debate about passenger safety by calling for every train in Britain to carry a second safety‑critical person in addition to the driver. Dave Calfe’s mark a shift in the railway safety conversation one that goes beyond pay disputes and industrial action and strikes directly at how the nation’s trains are staffed and operated. His proposal has reignited tensions between trade unions, government, and train operators, and come amid broader public concern over rail safety and service quality.
Calfe, who took over the union’s top job earlier this year, stressed that the change is not simply about employment but operational safety and passenger experience. “Expecting a driver to manage up to 1,000 passengers alone possibly in the middle of nowhere is unreasonable,” he told reporters, arguing that visible staff beyond the cab would not only improve responses to emergencies but also reassure passengers and deter anti‑social behaviour.
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The union’s stance directly challenges what is widely known in the industry as Driver‑Only Operation (DOO) a practice introduced in the 1980s and now common on many regional and intercity routes, where the train driver is the sole safety‑critical staff member on board.
Under DOO, the driver is responsible not only for controlling the train but also for managing door operations and responding to onboard incidents without routine support from other safety‑trained staff.
Critics of DOO, including members of the public and railway worker organisations, argue that this model places excessive responsibility on individual drivers and can erode safety margins in complex situations such as evacuations, medical emergencies or unexpected technical failures.
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Evidence presented by unions like Aslef suggests that a visible, trained second person on every carriage enhances safety outcomes and passenger confidence a sentiment echoed in recent industry submissions to parliamentary transport committees. These documents indicate that many passengers feel safer when staff are present and able to intervene beyond the driver’s cab.
The call for two safety‑critical staff on every train has stirred debate just as public confidence in rail services faces enduring scrutiny. While modern signalling systems and automated protections like the Train Protection & Warning System (TPWS) help prevent major collisions and enforce speed compliance, they do not replace the human element needed for emergency response and passenger welfare roles unions say are best fulfilled by additional on‑board personnel.
Supporters of Calfe’s position point to a litany of historical rail incidents, arguing that human support beyond the driver plays an essential role when technology and infrastructure stress converge.
Incidents such as the 2025 Shap derailment in Cumbria, where crew worked to evacuate passengers safely after a landslip forced a high‑speed train off the tracks, highlight the critical need for trained staff on board especially when quick, coordinated responses are required under duress.
“We’re not talking about nostalgic staffing models,” Calfe told in a wide‑ranging interview. “We’re talking about realism. Expectations around rail travel have changed dramatically since the 1980s. Sunday journeys on busy routes now rival weekday commuter volumes. A modern railway needs more than an operator in the cab.”
Opposition to extending mandatory two‑person staffing comes largely from cost‑focused rail operators and government officials who point to staff shortages, rising operational costs, and the challenges of delivering reliable services in a constrained funding environment.
They argue that DOO, where implemented with appropriate technology and procedures, has not demonstrably reduced safety standards and is essential for keeping fares affordable and services frequent. Industry spokespeople also highlight that many urban and intercity networks already operate safely under existing DOO frameworks, as long as staff are well‑trained and supported.
Economists and transport analysts, however, warn that framing the debate as binary “more staff equals better safety” versus “technology is enough” misses the larger point about systemic resilience.
They suggest that rail safety depends on layers of overlapping protection: sophisticated signalling, trained personnel across functions, clear emergency protocols, and a culture that prioritises the well‑being of passengers and crew alike.
In their view, Calfe’s proposal represents a broader demand for rail services to be robust, human‑centred and accountable rather than streamlined to the point where operational risk migrates unchecked to a single individual.
The debate also rekindles discussion about regional variances in staffing and service levels. Trains operating in densely populated cities often carry staff in addition to the driver, especially where accessibility needs or security concerns are higher, while long‑distance and rural services rely heavily on DOO to remain economically viable.
Balancing these different operational realities remains a sticking point for policymakers trying to reconcile safety, service quality and fiscal sustainability.
Public sentiment on the issue appears mixed but increasingly attentive to safety concerns. Surveys commissioned by transport watchdogs show that passengers often feel more at ease when multiple trained staff members are visible on board, particularly among elderly travellers, people with disabilities, and those travelling alone.
Many rail users have also voiced frustration over inconsistent staffing levels across routes and times of day, further fuelling calls for a uniform safety standard.
Politically, Calfe’s intervention comes at a time of heightened scrutiny over rail performance. Recent surveys indicate that passenger confidence in train operators is at a low point, with Transport Focus reporting overall satisfaction with rail journeys in Great Britain at just 81 % in early 2024, down from previous years, while Ipsos found that 40 % of Britons rate rail services as poor and nearly half have avoided trains due to concerns about reliability.
Complaints over delays, overcrowding, and service disruptions dominate public discourse, reinforcing the perception that rail travel is inconsistent and stressful. Against this backdrop, calls for enhanced safety measures and additional on-board staff resonate with voters, who increasingly see reliable and secure train travel as a fundamental public service rather than a luxury.
Opposition parties have started to weigh in, with some calling for formal government review of staffing policies and independent safety audits of DOO practices across the network.
Advocacy groups representing passengers with accessibility needs have also seized the moment, arguing that additional safety staff would make rail travel more inclusive, especially for wheelchair users or those requiring assistance boarding and alighting.
Despite resistance from some quarters, Calfe insists that the conversation has already shifted. “This isn’t just about union demands,” he said. “It’s about what passengers want and what society values when it comes to public transport. Safety should never be a secondary consideration because it’s expensive or inconvenient. Lives matter.”
With rail industry braces for its busiest travel season yet with spring and summer timetables promising heightened demand the pressure to address safety, staffing and service quality is unlikely to abate. Whether Calfe’s call for a second safety‑critical person on every train translates into legislative or regulatory change remains an open question.
What is clear is that the conversation about how Britain runs its railways has moved beyond strikes and schedules into a broader debate about public trust, accountability and the role of human presence in an increasingly automated age.
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