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|---|---|
| Ruta nacional A004 | |
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| Route information | |
| Maintained by AUBASA | |
| Length | 8 km (5.0 mi) |
| Existed | 1995–present |
| Major junctions | |
| NE end |  in Hudson |
| SW end |  &sq=&lang=&file=File:RP14-AR.svg){kind=small} &sq=&lang=&file=File:RP36-AR.svg){kind=small} in J.M. Gutiérrez |
| Location | |
| Country | Argentina |
| Highway system | |
National Route A004 is a four-lane highway connecting National Route 1 (mostly known as the "Buenos Aires-La Plata highway") at km marker 31 with the Juan María Gutiérrez Roundabout in Greater Buenos Aires. The road extends for 8 km (5 mi) (numbered km 31 to 30), all within the limits of Berazategui Partido in Buenos Aires Province, Argentina.
This road is the obligatory route for the vacation destinations of Mar del Plata and other cities along the coast of Buenos Aires Province as it connects with Autovía 2, so it has high volumes of traffic during the summer months and Easter.
The A004 is currently operated by AUBASA ("Autopistas de Buenos Aires S.A."), a state-owned company owned by the Government of Buenos Aires Province, which also manages the NR 1 and most routes to the cities of Costa Atlántica.