Which classification of bus design is recognized as transit-style?

The classification recognized as transit-style is Type D. This type is characterized by its design, which allows for greater passenger capacity and is often used for public transportation systems. Type D buses typically have a flat front with a larger passenger compartment, accommodating more than 30 passengers comfortably, and they are built on a chassis that is either a cutaway or a bus-specific frame. This design allows for easier access and egress, making it highly suitable for urban environments and transit services.

Types A, B, and C have different configurations, with Type A being smaller and typically built on a cutaway van chassis, Type B being a mid-sized bus generally suited for school transport, and Type C often resembling a traditional school bus but is less commonly used for transit purposes compared to Type D. Thus, the unique features and intended use of Type D make it the correct classification for transit-style buses.