Trolleybus

noun
  1. A trolleybus is a type of electric bus that draws power from dual overhead wires using spring-loaded trolley poles. It operates on rubber tires and is guided by the driver, similar to a regular bus, but relies on electricity supplied through the overhead wires for propulsion. noun
    The city decided to expand its public transportation system by adding more trolleybuses to reduce pollution.
    During the morning rush hour, the trolleybus was packed with commuters heading to work.