EDSA

Epifanio de los Santos Avenue, commonly referred to by its acronym EDSA, is a limited-access circumferential highway around Manila, the capital city of the Philippines. It passes through 6 of Metro Manila's 17 local government units or cities, namely, from north to south, Caloocan, Quezon City, San Juan, Mandaluyong, Makati, and Pasay. Named after academic Epifanio de los Santos, the section of the road from Balintawak Interchange in Quezon City to Magallanes Interchange in Makati links the North Luzon Expressway (NLEX) and South Luzon Expressway (SLEX), as well as the major financial districts of Triangle Park, Araneta City, Ortigas Center, Makati CBD, and Bay City. It is the longest and the most congested highway in the metropolis, stretching some . The entire avenue forms part of Circumferential Road 4 (C-4) of Metro Manila's arterial road network, National Route 1 (N1) of the Philippine highway network and Asian Highway 26 (AH26) of the Asian Highway Network. The locations around the avenue were marked with great economic and industrial growth, proven by the fact that all but two industrial centers in the Metropolis are directly accessible from the thoroughfare. The decent economic growth of the areas around the avenue adds a significant volume of traffic on the avenue, and in recent estimates, and an average of 2.34 million vehicles go through it every day. The avenue is a divided carriageway, often consisting of 12 lanes, 6 in either direction, with the elevated railroads Manila Metro Rail Transit System Line 3 and Manila Light Rail Transit System Line 1 often serving as its median. Although it is not an expressway, traffic rules and speed limits are strictly implemented to the vehicles that pass along it. It is operated by the Metropolitan Manila Development Authority and is maintained and constantly being repaired by the Department of Public Works and Highways, whose maintenance over EDSA excludes the extension at Bay City in Pasay.