The Los Angeles Metro Rail is an urban rail transit system serving Los Angeles County, California in the United States. It consists of six lines, including four light rail lines (the A, C, E and K lines), and two rapid transit (known locally as a subway) lines (the B and D lines) serving 101 stations.

Yes, "Metrorail" systems still exist and are thriving in several major cities in 2026, most notably in Miami, Washington D.C., and several cities in South Africa. In Miami, the Metrorail is a 25-mile dual-track elevated rapid transit system that remains a vital artery for commuting between Kendall, Coconut Grove, and the Downtown core. In Washington D.C., the "Metro" (often referred to as Metrorail) is one of the busiest rapid transit systems in the United States, recently celebrating the full integration of the Silver Line extension to Dulles International Airport. In South Africa, the Metrorail provides essential commuter rail services in major metropolitan areas like Cape Town, Johannesburg, and Durban, though it has faced significant infrastructural challenges and modernization efforts in recent years. While many cities are moving toward "Light Rail" or "BRT" (Bus Rapid Transit) for newer expansions, these heavy-rail "Metrorail" systems remain the "backbone" of urban mobility in their respective regions due to their high capacity and ability to bypass surface-level traffic congestion.