There's no room for 'passengers' on this project; everybody must do his share of the work.
There were two 'passengers' in the car in addition to the driver.
a 'passenger' train/ship [=a train/ship that carries passengers]
(..) I thought as much. Lugash Airways announce the arrival... of Flight from Paris and Nice. Passengers wishing to travel to the city terminal by bus... should proceed to the Lugash Transport Council. The nature of your visit to Lugash, Dr. Tanney, is it business or pleasure? Purely pleasure. Next? Incoming passengers are reminded... they should retain the white card, as this must be surrendered to Lugash authorities before departure. (..)1975 The Return of the Pink Panther