trolly

A trolly, also spelled trolley, is a type of electric vehicle that runs on tracks and draws power from overhead wires. These vehicles are often used for public transportation in urban areas. The word "trolley" can also refer to a small cart or hand truck used for carrying goods.

Historically, trolleys were a popular form of public transit in the late 19th and early 20th centuries. They offered a cleaner and more efficient alternative to horse-drawn carriages. Many cities developed extensive trolley networks that served as the backbone of their transportation systems. However, with the rise of the automobile and buses, trolley systems began to decline in many parts of the world.

In recent decades, there has been a resurgence of interest in trolleys and light rail systems. Factors contributing to this renewed popularity include environmental concerns, the desire to reduce traffic congestion, and the aesthetic appeal of these vehicles. Modern trolley systems often incorporate advanced technology for greater efficiency and passenger comfort. The design of trolleys can vary, from vintage-style cars that evoke a sense of nostalgia to sleek, contemporary vehicles. The term "trolley" is also used to describe a movable pulley or a small cart used in shops or on aircraft for serving food.