It will be the third line extending outside the Metro Manila area after the opening of the Line 2 east extension in Antipolo, Rizal and the planned Line 7 that starts in North Avenue, Quezon City and ends in San Jose Del Monte, Bulacan. An unsolicited bid to build and operate this project from Canada's SNC-Lavalin was rejected by the Philippine government in 2005. The government is working with advisers (International Finance Corporation, White & Case, Halcrow, and others) to conduct an open-market invitation to tender for the construction of the extension and a 30-year concession to run it. An additional extension from Bacoor to Imus and from there a further extension to Dasmariñas, both in Cavite, are also being considered. On March 22, 2012, the Line 1 south extension project was approved by the National Economic and Development Authority (NEDA). In line with this, the operations and maintenance of Line 1 was awarded to the Light Rail Manila Corporation in 2014 and started operating the line on September 12, 2015. The groundbreaking ceremony of the south extension was held on May 4, 2017, with construction beginning on May 7, 2019. Partial operations of the south extension is slated for 2024, with full operations slated by 2027. The LRTA is also currently conducting studies on the feasibility of a , four-station Line 1 spur from Baclaran towards Terminal 3 of Ninoy Aquino International Airport, with a projected daily capacity of 40,000 passengers. Funding for the project could be sourced from either official development assistance or a public-private partnership. Line 2 is planned to be extended westward from Recto up to the Manila North Harbor in Tondo. New lines The LRT Line 6 was originally conceived as a continuation of the LRT Line 1 to Dasmariñas, Cavite. In its current form, the "Modified" Line 6 proposal is a elevated railway from Niog station in Bacoor to Governor's Drive station in Dasmariñas via the Molino–Paliparan Road. The line will also be extended further north to Ninoy Aquino International Airport (as Line 6B) in Pasay and further south as Tagaytay (as Line 6A extension). There will also be branch lines passing through Dr. Santos Avenue and Alabang–Zapote Road in southern Metro Manila. The combined length of the proposed line including the extensions and branch lines is at and with a track length . Network map Notes References Further reading Allport, R. J. (1986).