A "trolley line" refers to a track or route specifically designed for trolley cars or streetcars to travel on. It is similar to a railway line but is usually found in urban areas and uses electric power. Full definition
The Westborough Bicycle and Pedestrian Advisory Committee's mission is to explore ways Westborough can become safer for pedestrians and cyclists, work to develop a rail trail along an old trolley line in town and advise the Board of Selectmen on roadway safety issues and preventing bicycle accidents. (massachusettsinjurylawyerblog.com)
A mostly east - west Trolley line running between Pacific Beach and El Cajon, via Clairemont, Kearny Mesa, Mission Valley, SDSU. (en.wikipedia.org)
Two Trees and at least nine other developers with projects near the proposed 16 - mile trolley line poured money into the mayor's campaign coffers or his nonprofit, The Post has reported. (nypost.com)