Midibus

While used in many parts of the world, the midibus is perhaps most common in the United Kingdom, where operators have found them more economical, and to have a sufficient number of seats compared to full size single-decker buses.

The term "midibus" is not in common use in the United States; such smaller and lighter-duty buses are not used for public transit there except in some very specialized instances.

For example, Muni in San Francisco operates both 30-foot (9.1 m) and 40-foot (12 m) versions of the Orion VII transit bus to serve routes that include some of the steeper and curvier hills.

Several shuttle bus companies such as Goshen Coach and Crystal have manufactured rear-engined vehicles with 30–35 seats, but no generic term has ever been applied to them.

In the 2000s, some manufacturers introduced mid-sized bus models based on large truck frames.