Arterial roads serve as the main route from the national roads to the barangays and its residential and commercial areas. Few examples of those roads include Commerce Avenue between Alabang and Ayala Alabang, Corporate Avenue in Filinvest City, Alabang, E. Rodriguez Sr. Avenue in Poblacion, E. Rodriguez Jr. Avenue in Tunasan, San Guillermo Street in Putatan, and Manuel L. Quezon Avenue from Alabang to Sucat and to the Taguig city boundary. The arterial roads are usually narrow, crowded with tricycles, pedestrians, and parked vehicles, and has few or no sidewalks, while a few, like Commerce Avenue, which has wide divided roads with traffic lights and sidewalks.