Oakland, Calif.-based AC Transit is preparing to put 23 streamlined, articulated New Flyer buses into daily East Bay passenger service.

The first of the sleek-looking Xcelsior model coaches will begin operation June 16 along one of the region’s most heavily traveled corridors, International Boulevard in Oakland.

The new buses are low floor with seating for up to 52 passengers and include a host of enhancing features including:

• Five percent less weight than normal to yield at least a 2% increase in fuel mileage.

• Disc brakes that reduce maintenance costs by an estimated $13,000.

• Quieter engine to decrease noise pollution.

• Improved driver area with a recessed overhead control panel.

• LED interior lighting and headlights.

• 330 horsepower engine with exhaust after-treatment for lower emissions.

• Two ADA wheelchair positions and front door wheelchair ramp.

• Three passenger doors.

• Roof mounted air conditioning.

• Stop request pull cords with push buttons at exit doors.

• Electric cooling system for better fuel economy.