← All Routes
L4
Osmeña Line
P. Quirino Ave. → SM Center Muntinlupa
24.11 km
Total length
12
Stations & stops
5
Feeder routes
3
Tertiary routes
24/7
Operations
Route Schematic
NavotasMOANovalichesMet. TheaterLibisPITXSumulongTaytayMuntinlupaQuirinoCubaoGilmoreEDSA–QAOrtigas

Figure not to scale. All stations proposed — subject to revision.

Feeder routes
40Sales Road – Lawton Avenue Line
41C5 Road Ext. – Dr. Arcadio Santos Ave. Line
42Doña Soledad Ave. – General Santos Ave. Line
43Dr. Arcadio Santos Ave. – NAIA Road Line
44Alabang – Zapote Road Line
Tertiary routes
400Daang-Hari Road Line
401Commerce Avenue Line
402Marcos Alvarez Avenue Line

Codes 100+ are tertiary (T) lines — third-tier routes serving smaller catchment areas.

Other lines
Why this corridor

Maximizing SLEX — south to the heart of Manila.

Maximizing the SLEX corridor — connecting Manila City southward to the borders of Muntinlupa. For commuters from the southern edge of the metro, this line moves them into the heart of Manila without multiple transfers. It anchors the south.

Proposed stations & stops
Terminal
Interchange
Stop
LRTRail connection
Quirino Avenue Terminal
San Andres Stop
542 m
Zobel Roxas Stop
803 m
Buendia Avenue Stop
1.07 km
Antonio Arnaiz Avenue Stop
831 m
Magallanes Stop
1.48 km
Villamore Airbase Stop
1.90 km
East Service Terminal
L3
1.44 km
Doña Soledad Avenue Stop
3.19 km
Dr. Arcadio Santos Avenue Stop
3.68 km
Starmall Alabang Stop
4.27 km
Muntinlupa City Hall
2.33 km
SM Center Muntinlupa Terminal

This proposal is a starting point, not a final answer.

All routes, corridors, and line designations are proposals subject to revision. Routes may be added, modified, or removed depending on actual commuter demand, road conditions, right-of-way constraints, and the evolving needs of Metro Manila's residents.

This plan was built from observation, research, and citizen-level analysis — not from engineering surveys or official feasibility studies. Any actual implementation would require rigorous technical study, public consultation, and formal planning processes.

For research and advocacy purposes only. Not for sale. Not for political use. Version 4 — May 2026.