Double-decker bus
With the exception of coaches, double-decker buses are uncommon in the United States. Many private operators, such as Megabus, run by Coach USA, employs double-decker buses on its busier intercity routes.
Trolleybuses in Greater Boston
The present fleet is made up of vehicles built by Neoplan USA and fitted with Škoda electrical equipment. There are two distinct groups: The network serving Cambridge and vicinity uses a fleet of 28 vehicles, while the Silver Line (Waterfront) uses a fleet of 32 dual-mode buses which are articulated and long. On June 18, 2014, an contract from Maine Military Authority would overhaul the 32 buses. By November of that year, the first 4 which were pilots were shipped and the first one completed overhaul in October 2015 which was #1132.. After the first bus returned, several more were delievered with the last bus #1123 in late March 2018. The last bus to complete overhaul was #1123 and returned in August 2018 which marked the program conclusion  (in august 2018 results). The buses were overhauled in this way . The rigid/standard trolleybuses (numbered 4101–4128) were delivered in 2003–04 and were the first low-floor trolleybuses in North America. Only No. 4101 arrived in 2003, in April, then returning to the factory for modifications. The first day of service for trolleybuses in this series was June 4, 2004. The dual-mode, articulated vehicles (numbered 1101–1132) were delivered in 2004–06 and are also low-floor vehicles.