Véhicules routiers — Exigences ergonomiques du poste de conduite dans les bus de ville — Partie 4: Environnement dans la cabine

ISO 16121-4:2011 specifies minimum requirements for the cabin environment.

ISO 16121-4:2011 applies to the driver's workplace in low-floor line-service buses designed for the carriage of passengers, comprising more than eight seats in addition to the driver's seat, and having a maximum weight exceeding five metric tonnes and an overall width exceeding 2,30 m.