South Bay Light Rail Metro Green Line Facts Hours of Operation: 4:00 a.m. 1:00 a.m. Frequency of Trains: Every 7-8 minutes, during peak hours; every 15 minutes during off-peak hours. Speed: 55 miles per hour Fare: $1.35 one way; ticket machines accept coins and bills ($1, $5, $10, and $20) Length: 20 miles Park-and-Ride lots: Parking is free. Mariposa and Douglas Stations do not have parking. Security: Security provided by the Los Angeles County Sheriff's Department. The Metro Rail system is comprised of the Metro Blue, Green, Red, Purple and Gold Lines. The Metro Blue Line runs north and south between Long Beach and Los Angeles. The Metro Green Line crosses the Blue Line, running east and west between Norwalk and Redondo Beach, curving south near the Los Angeles International Airport. The Metro Purple Line subway shares six stations with the Red Line Downtown and continues to the Mid-Wilshire area. The Metro Red Line subway meets the Blue Line in Los Angeles and provides service through Downtown, between Union Station, Hollywood and the San Fernando Valley, where it meets the Metro Orange Line transitway. The Metro Gold Line connects with the Red Line at Union Station, and runs northeast to Pasadena. A wide range of Metro and municipal connections are available at all Metro Rail stations. (Click on map below for a larger view.)