Southeast Metro Manila Expressway

The Southeast Metro Manila Expressway (SEMME), also known as Skyway Stage 4, C-6 Expressway and formerly Metro Manila Expressway, is a proposed 32.664-kilometer (20.296 mi) tolled expressway running across eastern Metro Manila and western Rizal. The expressway will help decongest the existing roadways across Metro Manila, such as EDSA and Circumferential Road 5. The expressway is part of the larger Circumferential Road 6 project, expanding from the original C-6 currently passing from General Santos Avenue in Taguig up to Highway 2000 (Phase 1) in Taytay, will expand to Cainta, Pasig, Marikina, San Mateo, and in Quezon City.

The expressway will begin at the Skyway near FTI (now Arca South), Taguig, and end at the Batasang Pambansa Complex in Quezon City. It will also connect to the North Luzon Expressway (NLEX) in Balagtas, Bulacan via a northern spur diverting from the mainline Southeast Metro Manila Expressway.

The entire expressway will be a future component of Expressway 5 (E5) of the Philippine expressway network.