The city of Glasgow, Scotland has a transport system encompassing air, rail, road, and an underground light metro line. Prior to 1962, the city was also served by trams. Commuters travelling into Glasgow from the neighbouring local authorities of North and South Lanarkshire, Renfrewshire, East Renfrewshire, and East and West Dunbartonshire have a major influence on travel patterns, with tens of thousands of residents commuting into the city each day. The most popular mode of transport in the city is the car, used by two thirds of people for journeys around the city.