The North Luzon Expressway (NLEX), signed as E1 of the Philippine expressway network, partially as N160 of the Philippine highway network, and R-8 of the Metro Manila arterial road network, is a limited-access toll expressway that connects Metro Manila to the provinces of the Central Luzon region in the Philippines. The expressway, which includes the main segment and its various spurs, has a total length of 101.8 kilometers (63.3 mi) and travels from its northern terminus at Sta. Ines Interchange to its southern terminus in Balintawak Interchange, which is adjacent to its connection to Skyway, an elevated toll road that connects the NLEX to its counterpart in the south, the South Luzon Expressway. The segment of the expressway between Santa Rita Exit in Guiguinto and the Balintawak Interch