The transportation networks in New Caledonia face several geographical constraints, including its insularity, climate, distance from Metropolitan France (approximately ), the relatively large size of the main island, Grande Terre (with an area of , it is the largest French island, twice the size of Corsica), and the presence of the Central Range spanning nearly its entire length. Additionally, there are limited alternatives to road transport for internal travel, except for inter-island maritime connections and a still-limited domestic air network.

Since 1999, New Caledonia has held authority over foreign trade (except for import and export restrictions related to matters under state jurisdiction, such as customs regulations), territorial maritime services (including ship registration, though maritime safety and international regulations remain under state control), air services (except for connections with other French territories, aircraft registration, and international aviation safety), road transport, vehicle registration (consisting of a six-digit number followed by "NC"), issuance of driver's licenses (valid throughout France but not subject to the points-based system used in Metropolitan France), issuance of vehicle registration certificates, and the promotion of road safety (though general regulations, enforcement, and penalties remain under state jurisdiction for public safety). The transport and distribution of electrical energy, as well as territorial port and airport infrastructure, also fall under New Caledonia's purview.

In 2009, additional responsibilities were transferred from the state to New Caledonia, including the policing and safety of domestic air traffic (for operators based in New Caledonia whose primary activity is not international air transport), maritime traffic within New Caledonia, and maritime rescue operations in territorial waters, as outlined in Article 26 of the 1999 Organic Law.

These responsibilities are managed by the Directorate of Infrastructure, Topography, and Land Transport (DITTT) of the Government of New Caledonia and two joint state-New Caledonia services: the Directorate of Civil Aviation (DAC) and the Maritime Affairs Service (AffMar). These sectors are overseen by one or more members of the local government. Since , Gilbert Tyuienon (a member of the FLNKS-UC, also vice-president of the government until ) has been responsible for domestic air, land, and maritime transport. Since , international air transport has also been included, marking the first time since 2009 that this sector has not been managed by the executive president.

Road transport

Road transport is the dominant mode of transportation in New Caledonia, especially on Grande Terre, the main island. Driving is on the right, adhering to the French traffic code with local adaptations.

Brief history

For European settlers, horse-drawn transport, including sulky, buggy, and patache (stagecoaches), was the primary means of land travel outside Nouméa until 1900, when road development allowed up to of daily travel. A relay station with a hotel was established in La Foa. Automobiles appeared in 1903, and by 1904, an automobile mail service between Nouméa and Bourail replaced boat transport.

Total road network

As of early 2006, the total road network spanned , equating to per —a density five times lower than Metropolitan France but three times higher than Australia and comparable to New Zealand—and approximately per 1,000 inhabitants. The network is evenly distributed across the three provinces, with disparities decreasing. In 2006, the South Province had ( per ), the North Province had ( per ), and the Loyalty Islands Province had ( per ).

The road network extends nearly continuously around the perimeter of Grande Terre, except for the "forgotten coast" between Thio and Yaté. Six transverse roads cross the Central Range, connecting Mont-Dore to Yaté, Boulouparis to Thio, La Foa to Kouaoua or Canala, Bourail to Houaïlou, Koné to Poindimié (the Koné-Tiwaka), and Koumac to Ouégoa.

Types of road networks

New Caledonia's road networks are categorized into three types based on ownership and maintenance: territorial roads (RT) managed by New Caledonia, provincial roads (RP) managed by the provinces, and municipal roads (urban roads and rural paths) managed by the communes.

Territorial roads

There are four territorial roads, totaling in 2006, representing 10.2% of the total network. These primarily connect the South and North Provinces or serve economically significant territorial infrastructure. Most are fully paved:

Territorial Road 1 (RT 1), the longest and oldest, spans . It runs along the west coast of Grande Terre from Nouméa to Koumac, serving the Brousse and village centers of communes north of Nouméa (Dumbéa, Païta, Boulouparis, La Foa, Moindou, Bourail, Poya, Pouembout, Koné, Voh, Kaala-Gomen, and Koumac). It also serves Nouméa–La Tontouta International Airport. Speed limits range from on open stretches to , , or in urban areas. Territorial Road 2 (RT 2) connects the port of Wé in the east to Lifou-Wanaham Airport in the north on Lifou, covering . Territorial Road 3 (RT 3), one of the six roads crossing the Central Range, spans . It starts at Bourail on the west coast, crosses the Roussettes Pass to Houaïlou, then follows the east coast northwest to the junction with the Koné-Tiwaka transverse road after Poindimié. Territorial Road 4 (RT 4), the shortest at ( unpaved), connects Poya to the mining village and industrial port of Népoui on the west coast.

Provincial roads

Provincial roads total , nearly all paved, comprising 13.84% of New Caledonia's road network. The North Province has the largest share (), followed by the South Province () and the Loyalty Islands Province ().

North Province

Provincial Road North 1 (RPN 1) extends , continuing from RT 1 north of Koumac along the west coast to Poum. Provincial Road North 2 (RPN 2), or "Koné-Tiwaka," is a transverse road from Koné on the west coast to the Tiwaka River mouth on the east coast, connecting to RT 3 and RPN 10. Provincial Road North 3 (RPN 3), approximately , runs from Houaïlou along the east coast to the Petchekara Pass near Thio, passing through Kouaoua and Canala. The pass is a scheduled road. Provincial Road North 5 (RPN 5), about , forms part of the Amieu Pass transverse road, connecting Sarraméa to Canala at the Koh Pass, where it meets RPN 3. Provincial Road North 7 (RPN 7), a transverse road, connects Koumac to Balade on the east coast, joining RPN 10. Provincial Road North 8 (RPN 8), , runs from Koumac along the west coast to the Paagoumène wharf. Provincial Road North 10 (RPN 10), the longest northern provincial road at , runs along the east coast from the Tiwaka River mouth to Balade, passing through Touho, Hienghène, and Pouébo. It includes a ferry crossing at the Ouaieme River near Hienghène.

South Province

Three expressways serve Greater Nouméa, including two bypass roads: one to Dumbéa and Païta northwest of the capital, and another to Mont-Dore east of the capital: The Western Bypass (VDO) comprises: Expressway No. 1 - Normandie Road (E1), commonly known as the "bypass," is an four-lane road opened in 1969. It connects the General Patch (Pacific) roundabout at Nouméa's city center and port to the Normandie Bridge near the boundaries of Nouméa, Dumbéa, and Mont-Dore. Speed limits are ( at the Berthelot/Mageco roundabout, now bypassed by an overpass) and in the Ducos and Rivière-Salée areas. It is managed by the South Province. Expressway No. 2 - Northern Road (E2), or "savexpress," is a road opened in 1979, managed by the South Province's financing company, PromoSud. It runs from the E1 at Koutio in Dumbéa to the Téné junction in Païta, where it joins RT 1. Initially a toll road, it became free on . It is now fully four-lane, with speed limits of to Koutio's toll booth and thereafter. The Eastern Bypass (VDE), opened between 2000 and 2001, spans from the Rabot (Belle-Vie) roundabout northeast of Nouméa to the Boulari roundabout in Mont-Dore's urban center. Initially a toll road, it became free on and is managed by Savexpress. Fully four-lane, its speed limits are at roundabouts, to the Tina toll booth, to the Week-End roundabout serving La Conception, and thereafter. Much of its route is built on reclaimed land in the sea. Provincial Road 1 (RP 1), or "Southern Road," is approximately , connecting the Normandie interchange northeast of Nouméa to the Pirogues River mouth in Plum. It serves as the central axis of Mont-Dore, spanning nearly its entire length from west to east. Provincial Road 2 (RP 2), or "Mont-Dore Corniche," is about . It branches from RP 1 at the La Coulée roundabout and rejoins it at Plum, bypassing the Plum Pass and skirting the Mont-Dore massif along the coast. It serves the Vallon-Dore and Mont-Dore Sud areas, primarily consisting of secondary residences and suburban subdivisions. Provincial Road 3 (RP 3), or "Yaté Road," is the southernmost transverse road on Grande Terre, spanning about . It starts at RP 1 near La Coulée, passes the Deux Tétons Pass, and follows Yaté Lake to Yaté village. Provincial Road 4 (RP 4), or "Thio Road," is a transverse road from Boulouparis on the west coast, via the Nassirah Pass, to RP 10 between Thio-Village and Thio-Mission on the east coast. Provincial Road 5 (RP 5), or "Amieu Pass Road," forms the first half of the transverse road from Fonwhary (near La Foa and Farino) to the Koh Pass, connecting to Kouaoua or Canala in the North Province. It spans about to the border between Sarraméa and Canala, then becomes RPN 5. It provides the only access to Farino and Sarraméa. Provincial Road 7 (RP 7), or "Baie des Dames Road," is about within Nouméa's Ducos Peninsula quarter, serving as its main axis from the Montravel interchange with E1 to the Koumourou fuel reservoirs, covering the entire industrial zone. Provincial Road 10 (RP 10), or "Petchekara Road," spans along the east coast from the junction with RP 4 between Thio-Mission and Thio-Village to the Petchekara Pass at the border with Canala in the North Province, where it becomes RPN 3. The pass is a scheduled road. Provincial Road 11 (RP 11), or "Yahoué Road," is about in Greater Nouméa, connecting RP 1 at the border of Nouméa's Normandie and Mont-Dore's Pont-des-Français to the Yahoué residential suburb. Provincial Road 12 (RP 12), or "Auteuil Road," is less than , connecting the Yahoué and Auteuil suburbs of Mont-Dore and Dumbéa. Provincial Road 14 (RP 14), or "Magenta Road," spans , covering most of Roger Gervolino Street from the Magenta-Plage roundabout to the Rabot (Belle-Vie) roundabout, passing Magenta Airport. Provincial Road 16 (RP 16), or "Farino Road," is about , branching from RP 5 to serve Farino. Provincial Road 17 (RP 17), or "Waho Road," connects RP 3 to the Waho tribal village, the administrative center of Yaté, over about . Provincial Road 18 (RP 18), or "Sarraméa Road," spans about , branching from RP 5 to serve Sarraméa. Provincial Road 20 (RP 20), or "Poé Road," is , starting from RT 1 after the Néra River bridge near Bourail, heading south then west to Poé Beach via Roche Percée and the Gouaro tribal village.

Loyalty Islands

Provincial Road 1 (RP 1) on Lifou, about , runs from the Kumo roundabout near Lifou-Wanaham Airport to the Chépénéhé tribal wharf in the west. Provincial Road 2 (RP 2) on Ouvéa, just over , connects Ouloup Airport in the center-east to the Wadrilla tribal wharf in the center-west. Provincial Road 3 (RP 3) on Maré, about , connects La Roche Airport in the northeast to Tadine in the southwest.

Municipal roads