The Ortigas Avenue is a 15.5-kilometre (9.6 mi) highway traversing through the eastern part of Metro Manila and the western part of Rizal province. It is one of the busiest highways in Metro Manila, with more traffic than Epifanio de los Santos Avenue. The western terminus of the highway is at San Juan City. The highway then traverses through Ortigas Center and along the cities of Mandaluyong, Quezon City and Pasig, followed by the municipalities of Cainta and Taytay, ending in the city of Antipolo.