Light Rail

An urban passenger rail mode descended from the traditional tram but built to run on its own reserved track, in tunnels or on elevated sections as well as in mixed street traffic, giving it more speed and capacity than a streetcar while costing far less to build than a full metro. The United States Urban Mass Transportation Administration coined the term in 1972 to describe this intermediate class of system as European tram networks modernized in the postwar decades. More than 400 cities worldwide now operate light rail lines, ranging from a few street-running cars to extensive multi-line networks. This description is adapted from Wikipedia contributors under CC BY-SA 4.0; changes were made. https://creativecommons.org/licenses/by-sa/4.0/