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| Valles Occidental | |
|---|---|
| Name | Valles Occidental |
| Settlement type | Comarca |
| Subdivision type | Country |
| Subdivision name | Spain |
| Subdivision type1 | Autonomous community |
| Subdivision name1 | Catalonia |
| Subdivision type2 | Province |
| Subdivision name2 | Barcelona |
| Seat type | Capital |
| Seat | Sabadell |
| Area total km2 | 177 |
| Population total | 821,000 |
| Population as of | 2020 |
| Population density km2 | auto |
| Municipalities | Badia del Vallès, Barberà del Vallès, Castellar del Vallès, Cerdanyola del Vallès, Gallifa, Granollers, Lliçà d'Amunt, Mollet del Vallès, Montcada i Reixac, Ripollet, Sant Cugat del Vallès, Sant Quirze del Vallès, Sabadell, Terrassa, Ullastrell |
Valles Occidental is a comarca in the Province of Barcelona within Catalonia, forming part of the metropolitan area surrounding Barcelona. The region comprises industrial cities and suburban towns including Sabadell and Terrassa, with a landscape framed by the Serra de Collserola and the Montseny Massif. Historically tied to textile manufacturing and modernized during the Industrial Revolution, it remains a hub for manufacturing, services, and research linked to institutions such as Autonomous University of Barcelona affiliates.
Valles Occidental occupies a central position in Catalonia, bounded to the south by the Besòs River corridor and to the north by foothills of the Pre-Coastal Range. Neighbouring comarcas include Barcelonès, Vallès Oriental, and Bages, while major transport axes such as the AP-7 and the C-58 cross the territory. The comarca includes urban concentrations in Sabadell and Terrassa and peri-urban municipalities like Cerdanyola del Vallès and Montcada i Reixac, with green spaces linked to Collserola Natural Park and hydrological systems feeding the Llobregat and Besòs basins.
The area shows archaeological remains from the Iberians and Roman infrastructures connected to Barcino. Medieval records tie settlements to feudal lords associated with the County of Barcelona and monastic institutions such as Sant Cugat monastery. Industrialization in the 19th century aligned towns with the textile boom paralleling developments in Sabadell and Terrassa, drawing labor influenced by migrations tied to events like the Spanish Civil War and postwar reconstruction under Francoist Spain. Democratic transition in the late 20th century saw local governments re-align with Generalitat de Catalunya institutions and integration into Barcelona metropolitan area planning initiatives.
Population centres in the comarca reflect diverse origins, including internal migrants from Andalusia and international communities from Morocco, Senegal, and Romania, mirroring broader patterns in Spain. Urban municipalities such as Sabadell and Terrassa account for a majority of inhabitants, with suburban growth in Barberà del Vallès, Ripollet, and Mollet del Vallès. Demographic trends show aging cohorts alongside young families tied to employment at firms affiliated with NATO-linked supply chains and European research projects funded through European Union frameworks.
Historically dominated by textile manufacturing tied to firms in Sabadell and Terrassa, the comarca has diversified into chemical, machinery, and electronics sectors connected to multinational companies headquartered in Barcelona. Industrial parks host SMEs supplying automotive clusters linked to manufacturers in Vallès Oriental and logistics nodes near the Port of Barcelona. The service sector is driven by education and research centers tied to Autonomous University of Barcelona campuses and technology transfer initiatives associated with Barcelona Supercomputing Center collaborations. Economic development plans coordinate with Catalan Agency for Business Competitiveness and regional chambers such as the Barcelona Chamber of Commerce.
Valles Occidental is traversed by major highways including the AP-7 and the C-58, and served by commuter rail networks operated by Ferrocarrils de la Generalitat de Catalunya and Renfe Cercanías Barcelona. Metro and tram interchanges link municipalities to Plaça de Catalunya and Sants Estació, while freight corridors connect to the Port of Barcelona and Barcelona–El Prat Airport. Urban planning initiatives address mobility through projects coordinated with Àrea Metropolitana de Barcelona and investments financed via European Investment Bank instruments.
Cultural life intertwines industrial heritage museums in Terrassa and Sabadell with festivals such as the celebrations at Sant Cugat and local commemorations tied to Catalan traditions like Festa Major. Architectural landmarks include Modernist buildings associated with architects influenced by Lluís Domènech i Montaner and Antoni Gaudí-era contemporaries, and archaeological sites connecting to Roman Barcino routes. The comarca hosts performing arts venues linked to touring companies from Gran Teatre del Liceu and cultural policies coordinated with the Institut Ramon Llull for Catalan language promotion.
Administrative structure follows municipal councils in towns such as Sabadell, Terrassa, Cerdanyola del Vallès, Sant Cugat del Vallès, and Montcada i Reixac, with inter-municipal cooperation facilitated by the Àrea Metropolitana de Barcelona and oversight from the Generalitat de Catalunya. Local elections align with parties including Convergència i Unió, Partit dels Socialistes de Catalunya, Esquerra Republicana de Catalunya, and Partido Popular at different periods, shaping planning and service delivery. Cross-jurisdictional initiatives address housing, transport, and environmental management through frameworks linked to Catalan Water Agency and metropolitan strategic plans.
Category:Comarques of Catalonia