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| Once rail disaster | |
|---|---|
| Date | 22 February 2012 |
| Time | 08:33 ART |
| Location | Buenos Aires Once railway station |
| Country | Argentina |
| Line | Sarmiento Railway |
| Operator | Trenes de Buenos Aires |
| Type | derailment and collision |
| Passengers | ~1000 |
| Deaths | 51 |
| Injuries | 789 |
Once rail disaster
The Once rail disaster was a catastrophic passenger train crash at Once railway station in Buenos Aires on 22 February 2012 that killed 51 people and injured hundreds. The collision involved a commuter train operated by Trenes de Buenos Aires on the Sarmiento Railway line, and its consequences reverberated through Argentine politics, judicial institutions, and transport policy across the country. The accident intensified scrutiny of public transport privatization, regulatory oversight, and infrastructure investment under the presidencies of Néstor Kirchner and Cristina Fernández de Kirchner.
The Sarmiento line was part of an extensive commuter network linking Buenos Aires suburbs such as Morón, Haedo, and Liniers to central termini like Once railway station. The service had been operated by Trenes de Buenos Aires since privatization initiatives in the 1990s that followed reforms under Carlos Menem. Rolling stock included Toshiba-built electric multiple units commissioned during the late 20th century and later refurbished under concession contracts involving SOFSE and infrastructure programs tied to multilateral lenders. Maintenance, signaling, and platform conditions had been points of contention among unions represented by Unión Ferroviaria, transport inspectors from Comisión Nacional de Regulación del Transporte, and civic groups such as Asociación Madres de Plaza de Mayo that campaigned on urban safety.
In the months preceding the crash, commuters and legislators documented frequent delays, brake faults, and station congestion at Once railway station, a hub serving regional services and connecting to Line A transfers. Reports in national outlets like Clarín and La Nación chronicled infrastructure deficits and contentious concession-renewal negotiations involving executives tied to Grupo Macri and municipal authorities of Buenos Aires.
On the morning peak of 22 February 2012, a westbound Sarmiento train failed to stop and struck the buffers at the platform of Once railway station. The train, composed of electric units originally built by Toshiba Corporation and maintained under contracts with private firms, mounted the platform retaining structures, causing the leading car to collapse onto the concourse and crush waiting passengers. Emergency services from Prefectura Naval Argentina and local units of Bomberos Voluntarios responded, as did medical teams from Hospital Ramos Mejía and Hospital Durand.
Eyewitnesses and surveillance footage showed the train entering at roughly 26 km/h, braking late, and colliding with the buffer stop; factors later debated in judicial proceedings included potential brake failure, human error by the driver, and dysfunctional ATP/ASFA-type automatic train protection systems. The physical destruction concentrated in the head car and platform area, producing a large number of crush and blunt-force injuries consistent with outcomes seen in major rail accidents like the Santiago de Compostela derailment and past station collisions at King's Cross station.
First responders established triage zones outside Once railway station and coordinated patient transfers to regional hospitals, with aerial evacuation requests routed through the Ministerio de Salud. Firefighters from Bomberos de la Ciudad de Buenos Aires used hydraulic cutters and spreaders to free trapped victims. Civil defense units and volunteers affiliated with Cruz Roja Argentina assisted with crowd control and psychosocial care.
Logistics involved multiple agencies, including municipal police from Policía Federal Argentina and EMT operations overseen by the Gobierno de la Ciudad de Buenos Aires. Challenges cited in after-action reviews included platform overcrowding, limited access for heavy rescue apparatus, and delayed ambulance arrival due to congested streets near the station, echoing systemic emergency shortcomings previously raised during incidents involving Aerolíneas Argentinas and mass transit emergencies like the Córdoba rail accident.
Judicial inquiries were spearheaded by federal judge Claudio Bonadio and later transferred through procedural steps to other tribunals, while technical probes engaged experts from the Instituto Nacional de Tecnología Industrial and international assessors. Investigators examined brake system maintenance records, speed logs, event data recorders, and driver training files. Analyses pointed to a combination of contributory causes: deficient maintenance regimes under concessionaire Trenes de Buenos Aires, inadequate implementation of automatic train protection technology, insufficient station buffer design, and possible operator fatigue or error.
Reconstruction of the braking sequence revealed worn brake pads and irregular maintenance intervals documented in internal logs; prosecutors alleged systemic negligence and contract breaches. Comparative inspections also reviewed oversight lapses by regulators linked to the Secretaría de Transporte and criticized the lack of capital investment following public-private agreements inspired by models used during Privatizations in Argentina (1990s).
Criminal charges were filed against the driver, company executives, and government officials, invoking statutes related to homicide and negligent conduct. The trial process extended over years, featuring indictments against executives of Trenes de Buenos Aires, transport officials, and maintenance contractors. Defense arguments cited infrastructure deficits inherited from previous administrations, while prosecutors emphasized managerial culpability and regulatory failure.
Verdicts and sentencing produced political controversy and appeals to higher courts, including interventions by the Corte Suprema de Justicia de la Nación on procedural issues. Civil lawsuits brought by victims' families sought compensation through the courts and negotiations with insurers and state indemnity funds administered under oversight by the Ministerio de Interior.
The deaths and widespread injuries provoked national mourning, candlelight vigils at Plaza de Mayo, and public protests demanding accountability from political figures such as Cristina Fernández de Kirchner and transport ministers. Victim advocacy groups formed coalitions drawing members from labor organizations like La Central de Trabajadores de la Argentina and human-rights NGOs such as Human Rights Watch offices active in Argentina. Commemorations and legal activism sustained media coverage in outlets including Página/12 and led to public inquiries at the Congreso de la Nación Argentina.
In the aftermath, authorities accelerated installation of ATP/ASFA-like automatic braking systems, mandated stricter maintenance audits under state supervision, and moved toward re-nationalization initiatives exemplified by expanded roles for SOFSE (Operadora Ferroviaria). Policy debates in the Congreso de la Nación Argentina focused on renegotiating concessions, increasing capital spending on rolling stock (including procurement from China Railway Rolling Stock Corporation partnerships), and enhancing station infrastructure at hubs like Once railway station. Long-term reforms also considered regional integration projects linked to the Belgrano Cargas program and safety frameworks promoted by international agencies like the International Association of Public Transport.
Category:Railway accidents in Argentina Category:2012 disasters in Argentina