Chargement de la carte...
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Le 9 décembre 2018, la fréquentation de la ligne a été augmentée, afin d'assurer les connexions avec le Léman Express (LEX) à Genève-Sécheron-Gare.
La fréquentation est exprimée en nombre de voyageurs par créneau.
La ligne 28 est exploitée avec un parc de 10 véhicules standards offrant les fréquences suivantes :
La ligne fonctionne du lundi au vendredi de 4h30 à 0h35 et les samedis, dimanches et fêtes à partir de 4h35 environ. Après 21h, le tronçon entre Aéroport et Jardin Botanique n'est pas desservi. (source Wikipédia)