<Tr> <Th> hide System map </Th> </Tr> <Tr> <Td> <P> </P> </Td> </Tr> <P> The Manila Light Rail Transit System (Filipino: Sistema ng Magaang Riles Panlulan ng Maynila), popularly and informally known as the LRT, is a metropolitan rail system serving the Metro Manila area in the Philippines . Although referred to as a light rail system because it originally used light rail vehicles, it has characteristics that make it more akin to a rapid transit (metro) system, such as high passenger throughput, exclusive right - of - way and later use of full metro rolling stock . The system is operated by the Light Rail Transit Authority (LRTA), a government - owned and controlled corporation under the authority of the Department of Transportation (DOTr). Along with the Manila Metro Rail Transit System (MRT - 3, also called the new Yellow Line), and Philippine National Railways's commuter line, the system makes up Metro Manila's rail infrastructure . </P> <P> The LRT - 1 serves 500,000 passengers daily while the LRT - 2 serves 200,000 passengers . Its 33.4 kilometers (20.8 mi) of mostly elevated route form two lines which serve 31 stations in total . LRT Line 1 (LRT - 1), also called the Green Line (formerly known as Yellow Line), opened in 1984 and travels a north--south route . LRT Line 2 (LRT - 2), the Blue Line (formerly known as Purple Line), was completed in 2004 and runs east--west . The original LRT - 1 was built as a no - frills means of public transport and lacks some features and comforts, but the new LRT - 2 has been built with additional standards and criteria in mind like barrier - free access . Security guards at each station conduct inspections and provide assistance . A reusable plastic magnetic ticketing system has replaced the previous token - based system in 2001, and the Flash Pass introduced as a step towards a more integrated transportation system . In 2015, the plastic magnetic tickets were replaced with the Beep, a contactless smart card, was introduced to provide a common ticketing to 3 rail lines and some bus lines . </P>

What is the meaning of lrt in the philippines