Commonwealth Avenue, Quezon City 4.98

Commonwealth Avenue, formerly known as Don Mariano Marcos Avenue, named after the father of President Ferdinand Marcos, is a 12.4km highway located in Quezon City, Philippines, which spans from 6 to 18 lanes and is the widest in the Philippines. It is one of the major roads in Metro Manila and is designated as part of Radial Road 7 of the older Manila arterial road system and N170 of the Department of Public Works and Highways national highway system.Commonwealth Avenue starts from the Quezon Memorial Circle inside the Elliptical Road, and it passes through the areas of Philcoa, Tandang Sora, Balara, Batasan Hills and ends at Quirino Highway in the Novaliches area.The avenue, being located on Quezon City, which is listed as one of several cities in Metro Manila with high incidence of road accidents, has a high rate of accidents, especially related to overspeeding, and has gained the nickname Killer Highway. A 60kph speed limit is enforced to reduce the high rate of accidents on the avenue.Route descriptionCommonwealth Avenue follows a curving route from Elliptical Road to Quirino Highway, which includes the section named Fairview Avenue. The main segment, south of the roundabout with Doña Carmen Street, is characterized by partial control of access, where at-grade intersections are replaced with interchanges and U-turn slots, and pedestrian crossings placed on overpasses (or footbridges). The segment has 18 lanes, with 9 lanes per direction, excluding lanes allocated for buses and jeepneys. Fairview Avenue has 6 to 8 lanes, with 3 to 4 lanes per direction, but intersections are mostly at-grade, usually with traffic lights.