PNR Metro Commuter Line

The PNR Metro Commuter Line was a commuter rail line operated by the Philippine National Railways. It was first inaugurated as the Metro Manila Commuter Service in 1970 and originally served the North Main Line and the South Main Line, as well as the defunct Carmona and Guadalupe branch lines. Since then, it adopted several names such as Metrotrak and Metrotren, before its present name was adopted in the late 2000s. The line was also nicknamed the Orange Line due to its designation in the 1970s.

The line had 36 stations serving Metro Manila and Laguna. It was divided into two sections which met at Tutuban station in Tondo, Manila. The Metro North Commuter section ran from Tutuban to Governor Pascual station in Malabon and was colored light green on the system map of PNR. On the other hand, the Metro South Commuter section ran from Tutuban to IRRI station in Los Baños, Laguna and was colored orange on the system map of PNR. Some stations connected to LRT Line 1 and 2, and MRT Line 3.

The line ceased operations on March 28, 2024, to give way for the construction of the North–South Commuter Railway Extension Project (NSCR-Ex). Despite this, plans are underway to reinstate its tracks at a later date following the completion of the NSCR.

The Manila Railroad Company, which preceded PNR, operated various local trains between Manila and its neighboring provinces. Trains from Tutuban will lead to Naic in Cavite, Pagsanjan in Laguna, Montalban in Rizal, and Bulacan during the 1920s.

The Manila Electric Railroad and Light Company (Meralco) also operated electrified Tranvia services in what is now Metro Manila. The 100 km (62 mi) tram system reached Malabon to the north, Pasig to the east, and Libertad (now part of Pasay) to the south, making it one of the longest in Asia in 1924. Both systems were heavily damaged during the Battle of Manila in World War II.

The Metro Manila Commuter Service started on April 6, 1970, which started at Manila North Harbor and ended in Biñan, Laguna. During this decade, more stations were opened although some were either closed or relocated. In 1976, the commuter system peaked and extended as far north as San Fernando, Pampanga, Guadalupe (located in Mandaluyong on the other side of Pasig River) to the east, and College to the south. There were also services in the now-defunct Carmona branch line.

In 1990, the system was undergoing renovations under the working title Metrotrak. By May of that year, the system was inaugurated as Metrotren to distinguish it from the LRT Line 1, then named "Metrorail". However, the Metrotren system eventually suffered neglect due to lack of funding and maintenance. Plans for expansion and rehabilitation such as the Manila–Clark Rapid Railway System project and Guadalupe line revival was also never realized. Another proposal to rehabilitate the line, the Manila–Calabarzon Express was planned but did not succeed.

The Arroyo administration attempted to modernize the PNR system by rebuilding the lines and purchasing new rolling stock. PNR purchased 6 brand new diesel multiple units from South Korea and became its first order in 35 years.