Trolleybuses (TracklessTrolleys) in San Francisco 2018

One of only five such systems currently operating in the U.S.. the Muni trolley bus system is the second-largest such system in the Western Hemisphere, after that of Mexico City. A particularly notable feature of its operations are very steep grades. The system includes the single steepest known grade on any existing trolley bus line in the world, specifically 22.8% in the block of Noe Street between Cesar Chavez Street and 26th Street on route 24-Divisadero, and several other sections of Muni trolley bus routes are among the world's steepest. While many cities converted their trolleybus systems to diesel buses during the middle of the 20th century, San Francisco kept its trolleybuses due to their ability to climb the city's steep hills, and because electricity was available at extremely lost cost from the city-owned O'Shaughnessy Dam. ~Wikipedia - Thank you for your support. Comment below so all of us can have a productive and insightful conversation about transportation!