Argentina/Highways

Feature: Argentina/Highways

Description

Normalization of roads within Argentina.

Group

highways

Tags

highway=* maxspeed=* surface=* smoothness=* lanes=* shoulder=*

This page documents the standard for the classification and tagging of circulation ways in Argentina, effective since 05/2018 with updates in 12/2023 and 08/2025.

General Principles of Classification

The main criterion for the hierarchy of ways (highway=*) is the importance or function of the way, not its physical characteristics (except in the case of motorway). This importance is defined by the size of the localities it connects and the associated traffic flow. Because public bodies in Argentina do not have a consistent hierarchy system among themselves, the OpenStreetMap community has developed this scheme to ensure map consistency.

Detailed Justification of the Road Hierarchy

The main driver for the hierarchy is the amount of traffic. In the absence of comprehensive statistics for the entire country, the classification sought to approximate the "amount" of traffic of a road through other parameters. However, the final result is an approximation, always subject to review by the community. It is noteworthy that the dimensions of our country and the coexistence of densely populated areas with large unpopulated areas necessarily lead to different assessments of the importance of a route depending on the region. It is not necessary for a road to have the same hierarchy throughout its entire length.

• Trunk Roads (trunk): These are generally the roads that link cities of more than 100,000 inhabitants with Buenos Aires or a nearby regional capital (usually provincial capitals, plus Rosario). They are also the links between the country's large cities and the main road links with neighboring countries. They tend to attract population, with many localities and services found along their route.
• Primary Roads (primary): These are the roads that connect cities of more than 10,000 inhabitants with their regional capital or Buenos Aires, or relatively close cities of more than 10,000 inhabitants.
• Secondary Roads (secondary): These connect localities of more than 1,000 inhabitants.
• Tertiary Roads (tertiary): Pavement is a great traffic motivator; a dirt road that gets paved gains traffic almost immediately. If it also links important cities, this road can go from tertiary to primary just because of this work. Paved tertiary roads are only those small sections, because where they extend to several towns they start to become the mandatory route for nearby rural areas.

For a more detailed explanation, follow the reference links to the urban forum, rural forum, and the analysis of the 2023 update.

Classification of Ways (highway Tag)

Urban Ways

Type	Tag	Description and Criteria
Motorways	highway=motorway
Trunk avenues with service roads	highway=trunk	These are trunk avenues with side streets to differentiate through traffic from local traffic. They prevent direct access from frontage properties. They are usually continuations of motorways or expressways. They usually have a maxspeed=* greater than 60 km/h. Ex: Av. 9 de Julio (CABA), 3 de Abril/Ferre/Independencia (Corrientes).
Trunk avenues	highway=primary	These are the main avenues that cross the city or act as ring roads. They serve to exit the city and are often part of a route. Wide, with more than 2 lanes per direction. Use in cities of 10,000 inhabitants or more.
Avenues	highway=secondary	Avenues in general, usually paved. Wide, although they may have only one lane per direction. Use in localities of 1,000 inhabitants or more.
Minor avenues	highway=tertiary	Short sections of avenues without relevance (maximum 500m). Low traffic and do not connect to important places. Paved.
Unpaved avenues	highway=tertiary	They are wide and have the traffic of an avenue, but are unpaved. They connect places that do not have paved access.
Main streets	highway=tertiary	Streets of normal width that function as avenues due to high traffic and commercial activity. They connect important parts of the city. May have right-of-way or synchronized traffic lights (green wave). Always paved. The use of tertiary in a city should be chosen carefully and with local knowledge.
Streets in general	highway=residential	Most streets in residential areas. maxspeed=* of 40 km/h or less.
Semi-pedestrian streets / Gated communities	highway=living_street	"Living streets" with pedestrian priority and very low speed limits (10-20 km/h). In gated communities add: access=private.
Pedestrian streets	highway=pedestrian	Wide pedestrian ways that were formerly streets (e.g., Florida street, CABA).
Footpaths	highway=footway	Trails and sidewalks exclusively for pedestrians.

Rural Ways

Type	Tag	Description and Criteria	Example
Motorways	highway=motorway	Minimum 2 lanes per direction and separated carriageways. No at-grade crossings or frontage access. maxspeed=* between 80 and 130 km/h.	RN8 (Buenos Aires)
Routes
Trunk (Connects > 100,000 pop.)	highway=trunk	Expressways (Autovías): Separated carriageways. May have at-grade crossings. Add motorroad=yes if there is no frontage access. Safe/multi-lane routes: 3 or more total lanes. High-traffic paved routes: 2-lane roads connecting large cities or international crossings.	RP 2 (Buenos Aires) RN12 (Misiones) RN11 (Santa Fe) RN3 (Santa Cruz)
Primary (Connects > 10,000 pop.)	highway=primary	Expressways (Autovías): With direct access from frontage lots. Parallel trunk: Old route superseded by a new motorway/expressway. Main access: Connects localities between 10,000 and 100,000 inhabitants.	RP11 (Buenos Aires) RP5 (Córdoba) RN1V09 (Córdoba)
Secondary (Connects > 1,000 pop.)	highway=secondary	Connects localities between 1,000 and 10,000 inhabitants. Generally paved and with low traffic.
Tertiary (Connects < 1,000 pop.)	highway=tertiary	Connects small settlements and hamlets. Includes most gravel or dirt roads (surface=unpaved).
Other Roads
Rural or local roads	highway=unclassified	Roads of local importance that are not part of the main route network.
Tracks in fields	highway=track	Tracks and access roads to rural properties, usually dirt and for agricultural use.
Footpaths	highway=footway

General Tagging Guide

• Motorways and expressways: Both directions of travel must be drawn separately (dual carriageways with oneway=yes).
• National Routes (on ways): Add the tag ref=RNroute (e.g., RN9).
• Provincial Routes (on ways): Add the tag ref=RProute (e.g., RP11).
• Links / Ramps (highway=*_link): Do not carry ref=* or name=*. They can carry destination=* and its variants.
• Service roads (highway=service): Entrance to service stations, parking lots, etc.
• Speed limits: See ES:Key:maxspeed and the table of maximum and minimum speeds.
• Street names: See ES:Names.
• Street numbering: See ES:Argentina/Altura de las calles.
• Roundabouts: See ES:Tag:junction=roundabout.
• Road signs: See Señales_viales_en_Argentina.
• Recommended tags: It is recommended to complete whenever possible: maxspeed=*, lanes=*, surface=*, shoulder=*, and smoothness=*.

Route Relations (type=route)

Main article: Key:network

According to the consensus reached by the community in August 2025, route relations must follow the following tagging standards.

network Tag

The simple standard agreed upon in 2016 and revalidated in 2025 is reaffirmed. Hierarchical formats by province (e.g., AR:B, AR:S) are incorrect and must be unified to the documented format.

Shield	Network	Network Tag
	National Routes	network=AR:national
	Provincial Routes	network=AR:provincial
	Secondary Provincial Routes	network=AR:provincial:secondary

ref Tag

The ref tag in route relations (type=route) must contain only the identifier that appears inside the road shield, without the "RN" or "RP" prefixes.

• Correct: ref=9, ref=11, ref=A012
• Incorrect: ref=RN9, ref=RP11, ref=RNA012

This rule does not apply to the ref tag on individual ways (highway=*), where the prefix can still be used (e.g., ref=RN9), as the way lacks the context of the network tag.

Original discussion (2016) in the forum. Vote and revalidation (2025) in this thread.

Implementation Status by District

Implementation status table and details by province (click to expand)

This table reports on the update of the new categories of circulation ways by district. It can be consulted graphically on this map and this map.

District	Updated	highway=trunk
		Classified	Unclassified or proposal pending
Buenos Aires		RN33, RN3, RN5, RN7, RP6,RN8, RN9, RP2, RN226, RP51, RN188, RP65 (Junín-Bolívar-RN33), RP88, RN288, RP58, RN3 (RP17-Av Gral Paz), Av44 and La Plata ring road, RP63, RP11, RP56
Catamarca	Yes	RN38, RN64, RP33, RN60, RN157
Chaco	Yes	RN11, RN16, RN89
Chubut		RN3, RN26, RN25, RN40
Ciudad Autónoma de Buenos Aires	Yes	Avenida 9 de Julio
Córdoba		RN7, RN8, RN9, RN19, RN35, RN36, RN38, RN60, RN158 and RNA005.	RN19 (Arroyito)
Corrientes	Yes	RN12, RN14, RN16, Avenida 3 de abril, RN117, RN121, RN123
Entre Ríos		RN12, RN18, RP39, RN136, RN174, RP26, RP11, RP16, RP20
Formosa	Yes	RN11, RN81
Jujuy		RN9, RN34, RN66, RN1V66, RN52
La Pampa		RN5, RN35, RN188, RN 143, RP20, RN151, RN154, RN22
La Rioja		RN38, RP5, RN79, RN77
Mendoza		RN143, RN144, RN40, RN7	City of Mendoza. Review connectivity on RP13
Misiones	Yes	RN12, RN14, RN105
Neuquén		RP7, RN22, Avenida Alfredo Fortabat (Zapala), RN40 (from Zapala to RN242), RN237, RN40 (from RN237 to RN231), RN231, RN242
Río Negro		RN3, RN22, RN151, RN250, RN251
Salta		RN9, RN16, RN34, RN50, RP57, RN51
San Juan	Yes	RN40, RN141, RN77, RN20
San Luis		RN7, RN8, RN20, RN79, RN146, RN147
Santa Cruz	Yes	RN3, RN40, RN288, RN27
Santa Fe	Yes, needs to complete routes with tertiary	RN8, RN9, RN11, RN19, RN33, RN34, RNA007, RNA008, RNA012, AP01, RN168
Santiago del Estero		RN9, RN64, RN34, RN89
Tierra del Fuego, Antártida e Islas del Atlántico Sur	Yes	RN3
Tucumán		RN9, RN38, RN1V38, RN157

Buenos Aires

The motorways (highway=motorway) in the province are routes RN9, RN8 (Pilar-Pergamino), RN7 (Buenos Aires-Luján), RN5 (Luján-Mercedes), Camino del Buen Ayre, Autopista Presidente Perón, RNA001 and RN1, RNA004, RP36 (RP1-RP2), RP2 (RP36-RP2).

The trunk routes are RP2, Avenida 44 and the La Plata ring road, RP6, RP58, RN3, RN5, RN7, RN8, RN188, RN226, RN228, RP88, RP65, RP51, RN33, RN35, RN22. RP2 connects the southern metropolitan area with the city of Mar del Plata (664,892 inhabitants). Avenida 44 and the La Plata ring road connect this city of 799,523 inhabitants with the Doctor Ricardo Balbín motorway (RN1) and RP6. RP6 connects the locality of Zárate (98,522 inhabitants, 2010) with La Plata, serving as access to the metropolitan area from the north and south of the country. RP58 connects the locality of Monte Grande (140,420 inhabitants) with RP6 and RP2 towards Mar del Plata. RN3 connects the city of Buenos Aires with the city of Bahía Blanca (301,572 inhabitants) and Patagonia. RN5 connects the city of Santa Rosa (103,241 pop.) with the city of Buenos Aires. RN7 connects the city of Buenos Aires and the west of the Buenos Aires Metropolitan Area with San Luis and Mendoza, cities of more than 100,000 inhabitants, and the Cristo Redentor international pass to Chile. RN8 connects the cities of Villa Mercedes, Río Cuarto, and Pergamino (more than 100,000 inhabitants) with the city of Buenos Aires. RN188 connects San Nicolás de los Arroyos (133,602 inhabitants) with Junín (101,500 inhabitants). RP65 connects Junín with Bahía Blanca (291,327 inhabitants) by taking RN33 in Guaminí. RP51 connects Olavarría (102,000 inhabitants) with Bahía Blanca. RN226 connects Mar del Plata with Tandil (116,916 inhabitants) and connects these cities with San Rafael (Mendoza) by taking RN188 in General Villegas. The connection between Mar del Plata and Bahía Blanca is made by routes RP88, RN228, and RN3 from Tres Arroyos. RN33 connects Rosario with Bahía Blanca. RN35 connects Bahía Blanca with Santa Rosa and Río Cuarto (158,298 inhabitants). RN22 connects Bahía Blanca with Neuquén.

Catamarca

The trunk routes (highway=trunk) are RN38, RN64, RP33, RN60, and RN157. The first connects San Fernando del Valle de Catamarca (160,058 inhabitants) with San Miguel de Tucumán (527,607 inhabitants) and to the south with La Rioja (180,219 inhabitants). RN64 connects the provincial capital with Santiago del Estero (252,192 inhabitants) and the northeast of the country. Routes RP33 and RN60 connect San Fernando del Valle de Catamarca with Córdoba (1,655,481 inhabitants). RN157 runs through the east of the province from San Miguel de Tucumán towards Córdoba.

Chaco

The trunk routes (highway=trunk) are the national routes RN11, RN16, and RN89. The first is the main access to Resistencia (420,000) and Formosa (200,000) from Buenos Aires. Route RN16 is the main access to Sáenz Peña (90,000) and the link between Resistencia and Corrientes; it is also the main link between Salta and Jujuy with almost the entire NEA region. RN16 also has 55 km of expressway. RN89 links the NEA with Tucumán, Santiago del Estero, and Cuyo; it is also an alternative route to Córdoba for Chaco and Formosa. With these routes, more than half of the cities with over 10,000 inhabitants are covered.

The primary routes are RN95 in its entirety, as it serves as access to Villa Ángela (40,000), Castelli (27,000), and Tres Isletas (17,000); it is also paved up to the bridge over the Bermejo River, being one of the 3 links with the province of Formosa, and one of the two paved links with the Province of Santa Fe, which is why its classification is primary in its entirety. RP90 is primary in its entirety as it is the main link for San Martín (30,000) and also one of the three links with Formosa. Finally, RP56, which is the access to La Leonesa-Las Palmas (14,000), is primary; RP4 between RN16 and Villa Berthet, as the main access to Villa Berthet (10,000); RP3 between RP90 and RN95, the main access for Pampa del Indio (9,000) and closes a loop with RN95; and RP9, the shortest link to reach Tres Isletas and Castelli from Resistencia.

The other paved routes are secondary: RP5 (link to Hermoso Campo, 5,000); RP13 (link between RN89 and RN95, access to Villa Ángela from the west); RP6 (link between RN89, RN95, and RP4); RP4 between RN16 and RP3 (link for Pampa del Indio and Presidencia Roca with the provincial center-west); RP7 between RP90 and RN16 (as of 2018 under construction between RP9 and RN16, link for San Martín with the provincial center-west); RP9 between Castelli and Miraflores (main access to Miraflores, 5,000); RP3 between RN95 and Villa Río Bermejito (access to Villa Río Bermejito, 4,000).

Chubut

The trunk routes (highway=trunk) are the national routes RN25, RN26, RN3, and RN40. RN25 connects Trelew (102,419 inhabitants) with San Carlos de Bariloche (112,887 inhabitants). RN26 connects Comodoro Rivadavia (173,266 pop.) with RN40, linking from this intersection the provinces of Tierra del Fuego and Santa Cruz with San Carlos de Bariloche and the Cardenal Samoré international pass. RN3 connects Comodoro Rivadavia with Puerto Madryn (107,673 pop.) within the province, and to the south and north with the provincial and national capitals.

Ciudad Autónoma de Buenos Aires

The motorways (highway=motorway) in the city are RNA001 (Avenida General Paz), AU1 (Autopista 25 de Mayo), AU6 (Autopista Perito Moreno), AU7 (Autopista Presidente Héctor José Cámpora), AV1-N (Autopista Arturo Illia), AV1-Sur (Autopista Presidente Arturo Frondizi), Autopista Teniente General Luis Dellepiane, Avenida Intendente Cantilo, Avenida Leopoldo Lugones, Paseo del Bajo, RN1 (Autopista Doctor Ricardo Balbín). The trunk route (highway=trunk) is Avenida 9 de Julio.

Córdoba

The motorways (highway=motorway) in the province are routes RN9, RN2V9, RN20, RN38, RPU304, and RNA019. RN9 connects Córdoba with Rosario. RNA019 is the Córdoba ring road. RN2V9 connects the Córdoba ring road with RN9 towards Santiago del Estero. RN20 is a motorway between the Córdoba ring road and RPC45. RN38 is a motorway from RPC45 to Avenida San Martín at the access to Villa Carlos Paz.

The trunk routes (highway=trunk) are RN7, RN8, RN9, RN19, RN35, RN36, RN38, RN60, RN158, and RNA005. RN7, which connects Buenos Aires with Mendoza, crosses the south of the province. RN8 connects Río Cuarto (158,298 pop.) with Pergamino (104,086 pop.) to the east and with Villa Mercedes (111,391 pop.) to the west. RN9 connects the city of Córdoba (1,655,481 pop.) to the north with the city of Santiago del Estero (252,192 pop.). RN19 connects Córdoba with Santa Fe (391,231 pop.) and Paraná (247,863 pop.). RN35 connects Río Cuarto with Santa Rosa (103,241 pop.). RN36 connects the city of Córdoba with Río Cuarto. RN38 connects the city of Córdoba with San Juan (441,477 pop.); it is accessed by taking the Variante Costa Azul. RN60 connects the city of Córdoba with San Fernando del Valle de Catamarca (160,058 pop.) and La Rioja (180,219 pop.). RN158 connects Río Cuarto (158,298 pop.) with Rosario, connecting with RN9 in Villa María. RNA005 forms the junction between RN8 and RN36 in the city of Río Cuarto.

Corrientes

The trunk routes (highway=trunk) are the national routes 12, 14, 117, 119, 121, and 123. Route 12 follows the course of the Paraná River, concentrating 6 of the 14 localities with 9,000 or more inhabitants. It connects Paraná (247,863 inhabitants) with the city of Corrientes (346,634 inhabitants) and Posadas (277,574 inhabitants). Route 14 follows the course of the Uruguay River to Santo Tomé where it begins to move away; on it are 4 of the 9 cities with more than 20,000 inhabitants. It connects the metropolitan area of Buenos Aires with the international crossings of Paso de los Libres and Santo Tomé - São Borja and with the province of Misiones. RN117 is the link between RN14 and the Paso de los Libres - Uruguaiana bridge; RN119 serves as a connection between RN14 from Concordia towards Corrientes; RN121 links RN14 with the bridge between Santo Tomé and São Borja. RN123 connects RN12 with RN14 and serves as a connection between the cities of Corrientes, Resistencia, and the entire north of the country with the international crossing of Paso de los Libres.

The primary routes (highway=primary) include national route 120, a link to Gobernador Virasoro (30,000), in the section that joins RN12 and RN14. RN127 is one of the 3 paved links with Entre Ríos, connecting with Federal (16,075 pop.) and Paraná. RP27 runs almost parallel to the Paraná between the cities of Goya (77,000 pop.) and Saladas, being the main link to Bella Vista (29,000) and Santa Lucía (12,000). RN123 connects Bella Vista with Mercedes. RN118 cuts across RN12 linking Bella Vista with Ituzaingó (19,000), connecting Saladas (13,000), San Miguel (5,000), and the accesses to Mburucuyá (7,000) and Concepción (4,000). RP5 is the primary link for San Luis del Palmar (11,000) with the city of Corrientes. RP9 connects San Luis del Palmar with the trunk network (RN12) towards Ituzaingó. RP71 is the access from RN14 to Colonia Liebig's - Estación Apóstoles (5,000) and the locality of Apóstoles (Misiones, 20,000 pop.).

The secondary routes include the other paved roads: RP20 access to Itatí (7,000); RP5 from San Luis del Palmar to RN118, main access to Caá Catí (5,000); RP6 access to Concepción; RP24 between RN12 and RN119 (access to Perugorría, 3,000); RP126 access to Sauce (7,000); RP40 between Mercedes and Puesto Ciro; RP94 that follows the course of the Uruguay River from Santo Tomé; RP34 access to San Carlos (2,000).

The paved tertiary routes are: RP15 access to San Antonio de Itatí; RN122 access to Yapeyú; RP159 access to Pedro R. Fernández and RP38 access to Puerto Goya.

Entre Ríos

The trunk routes (highway=trunk) are the national routes 12, 14, 18, 136, and 174, and provincial routes RP39, RP11, RP16, and RP20. RN12 connects the city of Paraná (247,863 inhabitants) northwards with the city of Corrientes (346,634 inhabitants) and southeastwards with the Colón - Paysandú international crossing via RP39. RN14 runs through the province connecting the cities on the Uruguay River coast and provides access to the international crossings of Gualeguaychú - Fray Bentos, Colón - Paysandú, and the Salto Grande international bridge. This route connects southwards with the city of Buenos Aires and northwards with the provinces of Corrientes and Misiones. RN18 connects the city of Concordia (149,450 inhabitants) with Paraná and Santa Fe. RN136 leads to the Libertador General San Martín International Bridge, which connects Gualeguaychú and Fray Bentos. RN174 connects Rosario (1,320,000 pop.) with Victoria; continuing with RP26 and RP39, they connect to the international crossings of Colón-Paysandú and Salto Grande. RP11 and RP16 connect Rosario with Gualeguaychú (209,461 pop.). RP20 is part of the connection between Paraná and Gualeguaychú.

Formosa

The trunk routes (highway=trunk) are the national routes RN11 and RN81. The first connects the 2 main cities of the Province, Clorinda (47,004 inhabitants) and Formosa (234,354 inhabitants). It also connects with Resistencia (385,726 inhabitants) and with the San Ignacio de Loyola Bridge international crossing. RN81 connects the city of Formosa with RN34 towards the Salvador Mazza - Yacuiba international crossing in the province of Salta. It is the main population axis, crossing the province transversely through the center; it connects 7 of the 10 localities with more than 5,000 inhabitants.

The primary routes are the other national routes that cross it: RN86 and RN95, and RNA011. RN86 follows the course of the Pilcomayo River and is another settlement axis with 7 localities of more than 2,000 inhabitants. RNA011 is the connection between Clorinda and Asunción via raft. RP1 between El Colorado and RN11 connects 3 localities forming a small southern corridor. RN95 and RP3 run from North to South connecting the axes of RN81, RN86, and the Bermejo River.

The other paved routes are secondary: RP2 between Laguna Blanca and RN11 (access to Riacho He-He, 4,000); RP9 between RN95 and the Paraguay River; RP1 between RN11 and the Paraguay River, access to Herradura (2,000); RP23 between the Bermejo River and the Pilcomayo River, access to an international bridge; RP20 between RP23 and RN95; RP26 between RN81 and RN86, and RP28 between RN81 (Las Lomitas) and RN86 (Posta Cambio Zalazar).

Jujuy

The motorways (highway=motorway) are RP1 (Avenida General Savio), RN9 from San Salvador de Jujuy to Yala, and RN66 (Autopista Presidente Raúl Alfonsín) from Perico to San Salvador de Jujuy.

The trunk routes (highway=trunk) are RN9, RN34, RN66, RN1V66, and RN52. RN9 connects San Salvador de Jujuy (231,229 inhabitants) with the La Quiaca-Villazón international crossing. RN66 and RN1V66 connect San Salvador de Jujuy with RN34. RN34 connects San Salvador de Jujuy with the Salvador Mazza-Yacuiba international crossing. RN52 connects San Salvador de Jujuy with the Jama international pass; it continues with the same classification in Chile and is used as an alternative to the Cristo Redentor international pass.

La Pampa

The trunk routes (highway=trunk) are RN5, RN35, RN188, RN152, RN143, RP20, RN151, RN22, and RN154. RN5 connects Santa Rosa (103,241 inhabitants) with the city of Buenos Aires. RN35 connects Santa Rosa with Río Cuarto (158,298 inhabitants) to the north and with Bahía Blanca (301,572 inhabitants) to the south. RN188 connects Santa Rosa with Villa Mercedes and San Rafael (118,850 inhabitants). Towards Neuquén (231,780 inhabitants), from Santa Rosa, the best route is composed of RN35, RN152, RN143, and RP20. RN151 runs through the west of the province and connects Neuquén with San Rafael. RN22 crosses the south of the provincial territory and connects Bahía Blanca with Neuquén. RN154 connects RN35 with RN22 and is part of the route between Santa Rosa and Puerto Madryn.

La Rioja

The trunk routes (highway=trunk) are RN38, RN150, RN40, RN79, and RP5. The first connects La Rioja (180,219 inhabitants) northwards with San Fernando del Valle de Catamarca (160,058 inhabitants) and southwards with San Juan (160,058 inhabitants), with this road including a section of RN150 and RN40. RN79 connects with the city of San Luis (204,019 inhabitants). RP5 leads from La Rioja towards Córdoba (1,655,481 inhabitants).

Mendoza

The province's motorways are located in the city of Mendoza. They are RN7 (Avenida de Acceso Este), RN40 (Acceso Sur), RP1 (Gobernador Ricardo Videla), RP10 (Emilio Civit), and a section of the Corredor del Oeste Juan Domingo Perón.

The trunk routes (highway=trunk) are RN7, RN40, RN143, RN144, RN145, and RN188. RN7 connects Mendoza (115,041 inhabitants) with the city of San Luis (204,019 inhabitants) and from there to Buenos Aires to the east. To the west, it connects with Chile through the Cristo Redentor international pass. RN40, between RN143 and RN145, is part of the link between Mendoza and the Pehuenche international pass. To the north, it connects the city of Mendoza with San Juan. RN143 connects the city of San Rafael (118,850 inhabitants) southwards with Neuquén (231,780 inhabitants) and with Santa Rosa (103,241 pop.), taking RN188 in General Alvear. RN144 connects San Rafael with RN40 towards the Pehuenche international pass.

Misiones

The trunk routes are the national routes 12, 14, and 105. The first follows the course of the Paraná River, a major settlement axis of Misiones, access to Posadas (320,000) from the west and the North, and ends at the bridge to Foz do Iguazú, one of the main border crossings; it also has 22 km of expressway. Route 14 crosses approximately halfway between the Paraná and Uruguay rivers, until it ends at Bernardo de Irigoyen, another of the main border crossings with Brazil. Route 105 links routes 12 and 14 in 33 km to be the main access to Posadas from Buenos Aires. Only two of the 16 localities with more than 10,000 inhabitants in Misiones are not connected by any of these routes, with 9 on RN12 and 5 on RN14, forming two very distinct settlement axes.

The primary routes are those that link routes 12 and 14 to cities with more than 10,000 inhabitants. Going from South to North: RP4 (access to Alem), RP103 (access to Oberá), RP7 (access to Aristóbulo del Valle), RP11 (access to Dos de Mayo and San Vicente), RP17 (links Eldorado with Bernardo de Irigoyen), and RN101 (access to Andresito, 12,000, and border crossings San Antonio, Integración, and Capanema). Also RP1, the main access to Apóstoles (25,000). Another case is RP103 between Oberá and RP2. The list is closed by the most populated section of RP2 that goes from San Javier to El Soberbio; RP2 follows the course of the Uruguay River, forming a settlement axis parallel to RN12 and RN14 but less intense.

The other paved routes are secondary: RP1 from Apóstoles to Azara (3,000); RP2 from Azara to the Corrientes border; RP10 from Apóstoles to Concepción de la Sierra (6,000); RP2 from Concepción to San Javier; RP3 from RN12 to Cerro Azul; RP225 from San Martín to Alem; RP4 from Alem to RP2; RP215 and RP209 from RP4 to RP2; RP6 from Corpus (2,000) to Campo Viera; RP5 from RP6 to Panambí; RP223 from RN12 to RP7; RP8 from Campo Grande to RP2 via Veinticinco de Mayo (4,000); RP9 from Villa Salto Encantado to 25 de Mayo; RP13 from San Vicente to El Soberbio; RP221 from RP13 to RP2; RP2 from El Soberbio to Moconá Falls; RP20 from San Pedro to Pozo Azul; RP27 from San Pedro to Paraíso (border crossing); RP19 from Wanda to the bridge over the San Antonio River (border crossing); RP24 access to Paso Integración from RN101.

Paved tertiary routes: RP30 (access to Arroyo del Medio); RP211 (access to Dos Arroyos); RP220 (access to Salto Encantado Park).

Neuquén

There is a motorway (highway=motorway), RP7, in the city of Neuquén from RN22 to Avenida del Trabajador.

The trunk routes (highway=trunk) are RP7 and the national routes RN22, RN40, RN231, RN237, RN242, and Avenida Alfredo Fortabat in Zapala. RP7 connects the city of Neuquén northwards with RN151 towards San Rafael and Santa Rosa. RN22 connects Neuquén (231,780 inhabitants) with Bahía Blanca (301,572 inhabitants) to the east, and is part of the route to Bariloche (112,887 inhabitants) and the Pino Hachado international pass. The section of RN40 between RN237 and RN231 is part of the connection from Neuquén and Bariloche to the Cardenal Antonio Samoré international pass. The section between Zapala and Las Lajas serves as a connection from Neuquén to the Pino Hachado international pass. RN231 is the access to the Cardenal Antonio Samoré international pass. RN242 is the access to the Pino Hachado international pass from RN40. Avenida Alfredo Fortabat in Zapala forms the link between RN22 and RN40, connecting Neuquén with the Pino Hachado international pass.

Río Negro

The trunk routes (highway=trunk) are RN3, RN22, RN23, RN151, RN250, and R251. RN3 connects the cities on the Atlantic coast of the Patagonian region with the north of the country and the national capital. RN22 connects Bahía Blanca (Buenos Aires) with Zapala (Neuquén), crossing the province of Río Negro between Río Colorado and Neuquén. RN151 connects RN22 in Cipolletti (Río Negro) with RN143 in La Pampa. It is part of the route between Neuquén and Santa Rosa, and Neuquén and San Rafael. RN250 connects Viedma (52,789 pop.) with RN22 and from there with Neuquén (231,780 pop.). RN251 connects San Antonio Oeste with RN22. It is on the route between Puerto Madryn and the rest of the country to the south, and the cities of Santa Rosa, Río Cuarto, and Córdoba to the north.

Salta

The province's motorways (highway=motorway) are located in the city of Salta. They are the Southeast, West, and Northwest ring roads, and the section of RN9 from Acceso Evita to Avenida Italia.

The trunk routes (highway=trunk) are RN9, RN16, RN34, RN50, RP57, and RN51. RN9 connects Salta (535,303 pop.) with Tucumán (527,607 pop.) to the south. RN16 connects Salta (535,303 pop.) with Resistencia, Corrientes, and Posadas. RN34 connects Salta northwards with the Salvador Mazza-Yacuiba international pass and is also the best route to San Salvador de Jujuy; to the south, it connects with Santiago del Estero. RN50 connects RN34 with the Aguas Blancas international pass. RP57 (Acceso Evita, Avenida Robustiano Patrón Costas) connects RN9 (motorway) with the Northwest ring road. RN51 crosses the city, connecting the West Ring Road with RN9 at its eastern entrance.

San Juan

The motorways are the Avenida de Circunvalación (A014) and national route 40 to the South, which is named Acceso Sur, from A014 to 8th Street (RP179).

The trunk routes (highway=trunk) are the national routes 20, 40, 141, and 150. The first is the main access to San Juan (441,477 inhabitants) from Buenos Aires and Río Cuarto, after passing through San Luis (204,019 inhabitants). Route 40 to the south links with Mendoza and Patagonia, and is currently (2023) being transformed into a motorway to the city of Mendoza. To the north, it connects with La Rioja (180,219 inhabitants) and the northwest region along with RN150. Route 141 is the best alternative to link with Córdoba, Santiago del Estero, and the northeast of the country.

The primary routes are RN40 northwards from Huaco to the provincial border. It is fully paved and is one of the links with the province of La Rioja, which is why its classification is primary in its entirety. RN150 is primary from RN40 to San José de Jáchal. RP7, a parallel avenue to RN40, links the city of San Juan with the municipalities of Rawson (114,000) and Pocito (41,000). RP19 and RP93 link the city with the departments of Chimbas (87,000) and Albardón (24,000). RP203 (Avenida de Los Ríos) and Diagonal Sarmiento are the main accesses to the City of Caucete (38,000). RP104 is an avenue that provides access to Santa Lucía (43,000). RP75, only in the city of Albardón (24,000), as it is the main access to it. Finally, RP12 and RP14 connect the city of San Juan with the department of Rivadavia (83,000).

The secondary routes are: RN142 links RN20 with Costa de Araujo in Mendoza (2,000). RP12 is the main access to Zonda (5,000) from the east and RP38 from the north; this route also serves to link with Ullum (5,000), after joining RP89, from the north. Ullum is reached from the city by RP60. RP319 allows entry to Media Agua (22,000), while from Media Agua, a connection to Caucete is achieved by RP162 and RP270. RP510 links the City of San Juan with Valle Fértil (7,000). RP75 is the main access, from the main town of Albardón, to Angaco (4,000) and from the city by RP1 and RP170. RP119, access to San Martín (10,000). RP170 and RP230 to Route 20 link San Martín and Angaco with Caucete. RP99 links Angaco with Chimbas. RN149, RP436, and RP412 link San Juan with Calingasta (2,000). RP436 and RN149 link San Juan with Rodeo (2,000). RN150 links Rodeo with Jáchal to the east and with Chile to the west; this classification is chosen for the international route as it is not fully paved, so the pass has little traffic and is only open in summer. RP155 access to 9 de Julio (9,000) from the city of San Juan and RP182 links with Caucete.

The paved tertiary routes are: RN153 to Pedernal, RP295 access to Cochagual, RP430 access to Angualasto, RP49 connection Jáchal – Huaco, RP459 connection Jáchal – Tamberías, RP511 connection San Agustín de Valle Fértil – La Rioja. RP54 linking Ullum with Jáchal and RP412 from Calingasta to Villa Nueva.

San Luis

The trunk routes (highway=trunk) are the national routes RN7, RN8, RN20, RN79, RN146, and RN147. RN7 connects the city of San Luis (204,019 pop.) eastwards with Mendoza and westwards with Villa Mercedes (111,391 pop.) and Buenos Aires. RN8 connects the city of Villa Mercedes with Río Cuarto (158,298 pop.). RN20, in the sections where it is part of the connection from San Luis to San Juan and La Rioja. RN79 connects San Luis with La Rioja (158,298 pop.) from RN20. RN146 connects the city of San Luis with the city of San Rafael (118,850 pop.). RN147 connects the city of San Luis northwards with RN20. From that intersection, it connects westwards via RN20 with the city of San Juan (441,477 pop.).

Santa Fe

In the province, the motorways (highway=motorway) are RN9, RNA008, AP01, RNA007, and RN34 (Rafaela bypass). RN9 connects Rosario (1,320,000 pop.) with the province of Buenos Aires to the south and the province of Córdoba to the west. RNA008 connects routes RN9, RP18, RN33, RN34, AP01, RN174 and maintains the continuity of all these routes. AP01 (Autopista Brigadier Estanislao López) connects Rosario with Santa Fe (391,231 pop.). RNA007 (Avenida Circunvalación Mar Argentino) surrounds the city of Santa Fe and connects with RN168 towards Paraná (247,863 pop.), AP01 towards Rosario, and RN11 towards Resistencia.

The trunk routes (highway=trunk) are RN11, RN19, RN33, RN34, RN168, and RN174. RN11 connects Santa Fe with Resistencia (385,726 pop.) and through this city with Corrientes and Formosa. RN19 connects Santa Fe with Córdoba (1,655,481 pop.). RN33 connects Rosario with Bahía Blanca (301,572 pop.) and with Santa Rosa (103,241 pop.). RN34 connects Rosario with the city of Rafaela (108,631 inhabitants) and with Santiago del Estero (252,192 pop.). RN168 connects Santa Fe with Paraná. RN174 connects Rosario with Victoria, and then taking RN12 to Gualeguaychú (209,461 inhabitants).

Santa Cruz

The trunk routes (highway=trunk) are RN3, RN40, RN288, and RP27. RN3 runs along the Atlantic coast of the province, connecting the province of Tierra del Fuego with Río Gallegos and northwards with the rest of the country. Routes RN40, RN288, and RP27 connect Río Gallegos with the Cardenal Samoré international pass to Chile.

Santiago del Estero

The trunk routes (highway=trunk) are RN9, RN34, RN64, and RN89. RN9 connects Santiago del Estero (252,192 pop.) and La Banda (106,441 pop.) with San Miguel de Tucumán (527,607 pop.) to the north and Córdoba to the south. RN34 connects Santiago del Estero with Salta (535,303 pop.) to the north and with Rafaela (108,631 pop.) to the south. RN64 connects Santiago del Estero with San Fernando del Valle de Catamarca (160,058 pop.). RN89 connects Santiago del Estero with Resistencia (385,726 pop.) and through this city with Corrientes and Formosa.

Tierra del Fuego

The trunk routes (highway=trunk) are RN3 from Ushuaia to San Sebastián and RN24CI from this locality to the border crossing. It connects the cities of Ushuaia and Río Grande (more than 60,000 inhabitants). It establishes the connection of these cities with other provincial and national capitals. It also leads to the San Sebastián Pass where the Chilean route 257 continues, also classified as highway=trunk.

Tucumán

The motorways (highway=motorway) of the province are located in the city of San Miguel de Tucumán. They correspond to RN38 from the junction with RN157 and RN9 to RP347. A section of RP314 between Tucumán and Tafí Viejo.

The trunk routes (highway=trunk) are RN9, RN38, RN1V38, and RN157. RN9 connects Tucumán (527,607 pop.) with Salta (535,303 pop.) to the north and with Santiago del Estero to the south. RN38 and RN1V38 connect Tucumán with San Fernando del Valle de Catamarca (160,058 pop.). RN157 connects Tucumán with Córdoba (1,655,481 pop.) and Rosario.