User:TagaSanPedroAko/sandbox/List of secondary and tertiary national roads in Metro Manila

This list shows the secondary and tertiary national roads in Metro Manila. Most of the national secondary roads in Metro Manila are numbered in the 100s series, except N411. Most of the numbered routes follow named roads, and roads that formed the obsoleted Circumferential and Radial Road systems.

Secondary national roads
This lists the secondary national roads (or officially, the national secondary roads) in Metro Manila. Most are numbered in the 100 series, except N411. Named roads and most of the obsolete Circumferential and Radial Roads mostly constitute most of the national secondary roads, except for a few that are part of the one to two-digit primary national road (national primary road) network.

N118
N118, named Polo-Novaliches Road and Kaybiga Road, is a 9.385 km secondary national road in Valenzuela and Novaliches, Quezon City. The national road crosses over the North Luzon Expressway (E1) at Paso de Blas exit, formerly signed as Valenzuela and Malinta exit. A portion of the route in Valenzuela is named and signed as Maysan Road. General Luis Street forms part of the Novaliches segment.

N120
N120 is a secondary secondary road that traverses the western portion of Metro Manila. Most of the route follows the Manila Bay and passes through the Port of Manila. Significant portions of the route are divided roads with center islands. Many portions of N120 are more recognized by their names, like Roxas Boulevard, Bonifacio Drive, Del Pan Bridge, Radial Road 10 (Road 10, or Marcos Road), Circumferential Road 4, and Samson Road. The route forms part of the alternate alignment of AH26 in Metro Manila.

N130
N130 is a secondary national road that starts at Navotas and ends at the Quezon City-Manila boundary. It follows the northern segment of Circumferential Road 3 and most of it follows named roads.

N411
N411 is a secondary national road in Las Piñas and Muntinlupa. Majority of the route forms part of Alabang–Zapote Road, that includes an extension to the Manila–Cavite Expressway in Bacoor. The highway is mostly four-lane, and notorious for perennial traffic congestion.