Trolleybuses in San Francisco 2018 (Skoda & New Flyer)

San Francisco has a impressive fleet of approximately 300 trolleybuses. Particularly notable are the very steep grades on several routes.
After around 15 years of service the Skoda 14TR trolleybuses are being replaced by New Flyer Xcelsior trolleybuses. The replacement of the articulated Skoda 15TR trolleybuses by articulated Xcelsior trolleybuses is completed.