superhighway
US /ˈsuː.pɚˌhaɪ.weɪ/
UK /ˈsuː.pɚˌhaɪ.weɪ/

1.
autoroute, voie rapide
a large, wide road designed for fast travel over long distances, typically with multiple lanes in each direction and limited access points
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The new superhighway significantly reduced travel time between the two cities.
La nouvelle autoroute a considérablement réduit le temps de trajet entre les deux villes.
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Traffic was heavy on the superhighway during rush hour.
Le trafic était dense sur l'autoroute pendant l'heure de pointe.
2.
superautoroute de l'information, réseau à haute capacité
a high-capacity network or system, especially one for information or communication
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The internet is often referred to as the information superhighway.
Internet est souvent appelé la superautoroute de l'information.
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The company invested heavily in building a digital superhighway for its global operations.
L'entreprise a massivement investi dans la construction d'une superautoroute numérique pour ses opérations mondiales.