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| National Route 2 (Argentina) | |
|---|---|
| Country | ARG |
| Type | National |
| Length km | 365 |
| Direction a | Northwest |
| Terminus a | Buenos Aires |
| Direction b | Southeast |
| Terminus b | Mar del Plata |
| Established | 1930s |
| Cities | Lomas de Zamora, Quilmes, Avellaneda, Berazategui, La Plata, Brandsen, Coronel Brandsen, Chascomús, Lezama, Castelli, Maipú, Mar del Plata |
National Route 2 (Argentina) is a major arterial highway linking Buenos Aires with the Atlantic coastal city of Mar del Plata. It serves as the principal access for tourism, freight, and commuter traffic between the Greater Buenos Aires metropolitan area and the Buenos Aires Province seaside, intersecting several provincial and national corridors. The road has evolved from a historic carriageway into a modern dual carriageway with toll plazas, service areas, and multiple interchanges connecting to key transport nodes.
The route begins near Plaza Constitución-adjacent corridors in Buenos Aires and travels southeast through suburban municipalities including Avellaneda, Lanús, Lomas de Zamora, and Quilmes before entering the planned city of La Plata. Past La Plata the highway crosses agricultural and wetland landscapes adjacent to the Laguna de Chascomús basin and proceeds through towns such as Brandsen and Chascomús. Approaching the coast the road passes through the Mar Chiquita corridor and rural districts including Lezama and Castelli before terminating at the ring road around Mar del Plata. Along its length the route connects with major corridors such as National Route 3, National Route 8, National Route 9, National Route 36, and links to the Ricchieri International Airport access roads serving Aeroparque Jorge Newbery and Ministro Pistarini International Airport.
The corridor was originally traced in the 19th century as a link between Buenos Aires and emerging seaside resorts including Mar del Plata and Necochea. During the presidency of Hipólito Yrigoyen and later administrations such as Juan Domingo Perón the route saw early paving and alignment changes to support expanding tourism and military logistics. Reconstruction campaigns in the 1960s under the Instituto Nacional de Obras de Transporte and later projects by Dirección Nacional de Vialidad upgraded alignments and implemented grade separations. The 1990s concession era under administrations following Carlos Menem introduced tolling and private maintenance by consortia influenced by policies similar to those applied to Autopista Buenos Aires–La Plata. Modern widening and conversion to dual carriageway were accelerated after incidents and capacity studies by institutions like the Asociación Argentina de Carreteras.
Key interchanges include the connection with Autopista Buenos Aires–La Plata near La Plata, the junction with Provincial Route 2 auxiliary links serving General Pueyrredón Partido, and the interchange with National Route 3 feeders that route traffic toward Bahía Blanca and Comodoro Rivadavia. The highway also intersects provincial arteries leading to Tandil, Balcarce, and Necochea, and features grade-separated interchanges near Chascomús for access to tourist attractions like Ecoparque Temaikèn-adjacent corridors and conservation areas administered by Administración de Parques Nacionales. Urban connectors enable access to ports such as Port of Buenos Aires and regional logistics centers like Mercado Central.
Traffic volumes peak during austral summer holiday periods as residents from Córdoba Province, Santa Fe Province, Mendoza Province, and the Buenos Aires Province travel to coastal resorts such as Mar del Plata and Pinamar. Daily commuter flows include workers traveling between Quilmes, Avellaneda, and central Buenos Aires, and freight movements serving agricultural exports bound for terminals at Puerto Buenos Aires and regional agro-industrial complexes in Pergamino and Junín. Peak-hour congestion occurs at entry points to Greater Buenos Aires and near toll plazas utilized by long-distance coaches from companies like Aerolíneas Argentinas-connecting services and private carriers such as Flecha Bus and Mar del Plata BusLine subsidiaries. Safety studies by Organización Mundial de la Salud-informed road safety programs and national traffic enforcement agencies have targeted accident reduction on high-risk segments.
Toll concessions established in the 1990s created plazas managed by private consortia under oversight from Dirección Nacional de Vialidad and provincial regulators. Toll plazas provide revenue for maintenance and upgrades; several are located near La Plata and closer to Mar del Plata. Service areas host fuel stations operated by companies like YPF, Shell, and Axion Energy, as well as rest stops with restaurants affiliated with brands such as McDonald's and local franchises. Emergency services coordinate with Policía de la Provincia de Buenos Aires and national highway patrol units, while roadside assistance is provided by insurers working with automotive clubs like Automóvil Club Argentino.
The highway underpins the tourism economy of Mar del Plata, Pinamar, and neighboring resorts, influencing seasonal employment in hospitality, construction, and retail sectors represented by organizations like Cámara Argentina de Turismo and local chambers of commerce. It enables supply chains for agribusinesses in Buenos Aires Province municipalities, linking production zones to ports and processing centers operated by firms such as Molinos Río de la Plata and Bunge Argentina. Social mobility is affected through commuter access to education and healthcare institutions in Buenos Aires and La Plata, including universities like Universidad Nacional de La Plata and hospitals serving provincial populations. Urban expansion along the corridor has led to planning interventions by municipal governments and provincial authorities addressing housing, zoning, and environmental concerns near wetlands under the purview of Secretaría de Ambiente-adjacent programs.
Planned projects include capacity expansion, interchange modernization, and intelligent transportation systems deployments coordinated by Ministerio de Transporte and Dirección Nacional de Vialidad. Proposals involve constructing additional lanes, improving pavement resilience to heavy vehicle loads, and implementing electronic toll collection interoperable with systems used on Autopista Illia and metropolitan expressways. Environmental impact assessments required by agencies such as Instituto Nacional de Tecnología Industrial guide alignments to protect wetland habitats linked to Río de la Plata estuarine systems. Public-private partnership models similar to those used for upgrades on Acceso Norte are under consideration for financing, while regional planning bodies including the Consejo Federal de Inversiones assess the economic returns for provincial stakeholders.
Category:Roads in Buenos Aires Province