MRT Line 4 (Metro Manila)
The Metro Rail Transit Line 4, also known as MRT Line 4 is an approved monorail rapid transit line to be built in Metro Manila and Rizal in the Philippines. When completed, it will be the first monorail line in the Philippines and the second rapid transit line serving the province of Rizal after the extension of LRT Line 2 to Antipolo.
The proposal, consists of eleven stations, will have a right-of-way alignment along N. Domingo, Ortigas Avenue and Taytay Diversion Road, linking suburban Taytay, Rizal to the Ortigas Center business district in eastern Metro Manila.
The project costed an estimated ₱59.3 billion or US$1.1 billion. It was approved by the Investment Coordination Committee of the National Economic and Development Authority last June 2015 as a public–private partnership project. The initial project was not pushed through until it was approved for a second time on December 20, 2019. When completed, it is expected to significantly reduce the volume of vehicular traffic along Ortigas Avenue and improve connectivity in the eastern parts of the metropolis, including the nearby municipalities in southwestern Rizal.
According to the Department of Finance, the Philippine government is looking to fund the construction through the Asian Infrastructure Investment Bank and the Asian Development Bank.
History
Construction
The line is set for construction this 2021 with assistance from the Asian Development Bank and targeted to be operational by 2025.Route
It will start from N. Domingo, one block away from Gilmore station of Line 2 at Quezon City in the west, to SM City Taytay in Dolores, Taytay in the east, passing through the cities of Mandaluyong and Pasig and the municipality of Cainta. An empty lot beside the Taytay Municipal Hall and Manila Club East Resort had been reserved for the depot.Proposed stations
The first proposal in 2015 involves the construction of 13 elevated stations along Taytay Diversion Road, Ortigas Avenue, ADB Avenue, Shaw Boulevard, P. Sanchez Street, and V. Mapa Street :| Name | Structure Type | Transfers | Location |
| Elevated | rowspan="7" | Taytay, Rizal | |
| Elevated | - | Taytay, Rizal | |
| Elevated | Cainta, Rizal | - | |
| Elevated | Pasig | - | |
| Elevated | Pasig | - | |
| Elevated | Mandaluyong/Pasig | - | |
| Elevated | Mandaluyong/Pasig | - | |
| Elevated | MRT Line 3 via Ortigas | Mandaluyong | |
| Elevated | rowspan="4" | Mandaluyong | |
| Elevated | - | Mandaluyong | |
| Depressed | - | Mandaluyong | |
| Depressed | Manila | - | |
| Depressed | Manila | LRT Line 2 via V. Mapa |
The 2019 proposal reduces the line from to and it will consist of 11 stations, plus 2 stations that could be built for future demand.
| Name | Structure Type | Transfers | Location |
| rowspan="13" | rowspan="8" | Taytay, Rizal | |
| - | - | Taytay, Rizal | |
| - | - | Taytay, Rizal | |
| | - | - | Taytay, Rizal |
| Cainta, Rizal | - | - | |
| Pasig | - | - | |
| Pasig | - | - | |
| | Pasig | - | - |
| Pasig | Metro Manila Subway via Ortigas North | - | |
| EDSA | MRT Line 3 via Ortigas | Quezon City | - |
| rowspan="2" | San Juan | - | |
| - | San Juan | - | |
| LRT Line 2 via Gilmore | San Juan | - |
Alignment between Ortigas Center and LRT-2
The line is a component of the Manila East Rail Transit Project proposed by the Japanese government in February 2015 which aims to provide a medium-capacity rail transport system connecting central and eastern Metro Manila with the province of Rizal. Its proposed alignment is along Ortigas Avenue with an option to extend the line to as far east as the Rizal municipality of Angono on the Manila East Road, and west to either of the following terminals:- Option 1: interchange with Santa Mesa station via ADB Avenue, Sheridan Street, Pioneer Street, Boni Avenue, Aglipay Street and Lubiran Street.
- Option 2: interchange with V. Mapa station via ADB Avenue, Shaw Boulevard, P. Sanchez Street and V. Mapa Street.
- Option 3: interchange with Gilmore station via a straight path following Ortigas Avenue and Gilmore Avenue in San Juan and its western extension Granada Street in Quezon City.