Road vehicles — Ergonomic requirements for the driver's workplace in line-service buses — Part 4: Cabin environment

ISO 16121-4:2005 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.

It gives the minimum requirements for the cabin environment.