single-decker bus

A single-decker bus or single-decker is a bus that has a single deck for passengers. Normally the use of the term single-decker refers to a standard two-axled rigid bus, in direct contrast to the use of the term double-decker bus, which is essentially a bus with two passengers decks and a staircase. These types of single-deckers may feature one or more doors, and varying internal combustion engine positions.