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| 817 series (Renfe) | |
|---|---|
| Name | 817 series (Renfe) |
| Service | 21st century |
| Operator | Renfe |
| Gauge | Iberian gauge |
817 series (Renfe)
The 817 series is a diesel multiple unit operated by Renfe on regional routes in Spain, introduced in the early 21st century to replace older Talbot and UTR units and to complement rolling stock like the Civia and S-599 families. It was developed amid procurement programs engaging manufacturers associated with CAF, Alstom, Siemens, and Bombardier Transportation and entered service during an era of infrastructure projects including the expansion of Adif networks, gauge standardisation debates, and regional transport reforms led by autonomous communities such as Catalonia, Andalusia, and Madrid.
The 817 series serves regional and media distancia links on routes connecting cities such as Barcelona, Valencia, Seville, Zaragoza, and A Coruña while interfacing with mainline hubs like Madrid Atocha, Barcelona Sants, and Valencia Joaquín Sorolla. It operates alongside multiple families including Talgo, S-594, S-730, and AVE high-speed sets, integrating with signalling systems influenced by standards from European Union Agency for Railways and interoperability frameworks linked to Trans-European Transport Network. Deployment was coordinated with agencies like ADIF and local transport authorities including Autoritat del Transport Metropolità.
The 817 series features a stainless steel and aluminium carbody influenced by designs from CAF and aerodynamic research found in prototypes by Alstom and Siemens Mobility. Its diesel powerplants are comparable to engines used by MTU Friedrichshafen and Cummins, with transmissions paralleling units from Voith and ZF Friedrichshafen. Bogies reflect suspension treatments tested on Talgo and CAF Oaris platforms, while onboard systems incorporate passenger information technology developed by suppliers like Thales Group, Siemens, and Hitachi Rail. Accessibility provisions were designed in accordance with regulations from the European Committee for Standardization and initiatives championed by organisations such as UN disability programmes and World Health Organization accessibility guidelines.
Development began after procurement calls responding to capacity constraints on corridors managed by Adif and regional plans from governments in Catalonia, Galicia, and Basque Country. Manufacturers involved included consortia with CAF, Alstom, Siemens, and Bombardier. Industrial policy debates referenced institutions like the European Commission, trade unions such as UGT and CCOO, and financing mechanisms from the European Investment Bank. Prototype testing occurred on lines near Madrid, with acceptance trials overseen by AESF and certification following procedures influenced by ERA directives.
Operators deployed the 817 series on services linking regional capitals including Bilbao, Santander, Vigo, Murcia, and Alicante. Operations intersect with timetables coordinated by Renfe Operadora and regional authorities such as Consorcio Regional de Transportes de Madrid and Autoritat del Transport Metropolità. Maintenance regimes are carried out at depots in cities like Seville, Zaragoza, and Valencia, with component supply chains tied to companies such as MTU, Voith, Knorr-Bremse, and Siemens. Integration with ticketing systems referenced national platforms and interoperability with Eurail-style arrangements for connecting international services via border points like Irun and La Tour de Carol.
Variants include multiple-formation sets adapted for peak commuter flows, tourist services linking destinations like Santiago de Compostela and Ribadeo, and units retrofitted with hybrid diesel-electric technology inspired by research from European Rail Research Advisory Council and trials by Bombardier and Alstom. Modifications addressed capacity, accessibility, and environmental performance, influenced by policies from the European Green Deal, national emission standards, and research centres such as Barcelona Supercomputing Center and Instituto de Ciencias de la Construcción Eduardo Torroja.
Recorded incidents involved collisions and level crossing events investigated by agencies like the Ministry of Transport's accident investigation units and reported in media outlets including El País, ABC, and La Vanguardia. Investigations referenced safety standards from European Union Agency for Railways and technical analyses by organisations such as Instituto Nacional de Seguridad y Salud en el Trabajo and university research groups at Universidad Politécnica de Madrid and Universidad de Zaragoza.
Several decommissioned units were earmarked for preservation by transport museums and heritage railways including the Museo del Ferrocarril de Madrid and regional initiatives in Asturias, Galicia, and Andalusia. The series influenced subsequent procurements by Renfe and design choices made by manufacturers CAF, Alstom, and Siemens Mobility, and contributed to debates in forums like UITP and policy discussions within the European Commission on regional mobility and sustainable transport.
Category:Renfe rolling stock Category:Diesel multiple units of Spain