The C Line (formerly the Green Line from 1995 to 2020) is a 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. Service description Route The entire route of the C Line is grade-separated, with its tracks following the median of the Century Freeway (Interstate 105) or an elevated guideway. The line begins in the west at station, then heads roughly north through El Segundo. At , passengers can transfer to any one of several bus lines from different operators, including LAX Shuttle Route M, which provides free service to Los Angeles International Airport. From here, the C Line heads east in the median of the Century Freeway, with a connection to the Metro J Line bus rapid transit line at the Harbor Freeway Station. It then continues to a major transfer connection at the Willowbrook/Rosa Parks station (transfer point to the A Line). Finally, the line terminates in Norwalk, just east of the 605 Freeway. A junction at Willowbrook/Rosa Parks allows trains to transfer to A Line tracks for maintenance and other non-revenue operations. When the C Line began service in 1995, it operated with only one-car trains. As ridership increased, two-car trains were then used. Ridership on the C Line has not been as high as the A Line, although it did have higher ridership than the L Line (then known as the Gold Line) until 2013. Although all of the C Line stations in the median of the Century Freeway were built by