The C Line (formerly the Green Line from 1995 to 2020) is a 19.5-mile (31.4 km) light rail line running between Redondo Beach and Norwalk within Los Angeles County. It is one of seven lines forming the Los Angeles Metro Rail system and opened on August 12, 1995. Along the route, the line serves the cities of Downey, El Segundo, Hawthorne, Norwalk and Lynwood, the Los Angeles community of Westchester, and several unincorporated communities in the South Los Angeles region including Athens, Del Aire, and Willowbrook. A free shuttle bus to Los Angeles International Airport (LAX) is available at the line's Aviation/LAX station. The fully grade-separated route (essentially a light metro) runs mainly in the median of the Century Freeway (Interstate 105) for its eastern portion and on an elevated viaduct for its western portion. A connection between the K Line and the current C Line is currently under construction and is scheduled to enter service in 2023. The two lines will be integrated, and services realigned at that time, although the service pattern has yet to be determined. From Wikipedia