Arterial road

An arterial road or arterial thoroughfare is a high-capacity urban road. The primary function of an arterial road is to deliver traffic from collector roads to freeways or expressways, and between urban centres at the highest level of service possible. As such, many arteries are limited-access roads, or feature restrictions on private access.

Though the design of arterial roads varies from country to country, city to city, and even within cities, they share a number of common design characteristics. For example, in many cities, arteries are arranged in concentric circles (commonly referred to as ring roads) or in a grid. Many jurisdictions also classify arterial roads as either principal (major) or minor.

In traffic engineering hierarchy, an arterial road delivers traffic between collector roads and freeways. For new arterial roads, intersections are often reduced to increase traffic flow. In California, arterial roads are usually spaced every half mile, and have intersecting collector(s) and streets. Some arterial roads, characterized by a small fraction of intersections and driveways compared to most arterial roads, are also considered to be expressways in some countries and some states of the United States.

Radial Road 2

Radial Road 2, more commonly referred to as R-2, is a network of roads and bridges that altogether form the second arterial road of Manila in the Philippines. The road runs north-south linking the City of Manila to the Metro Manila cities of Pasay, Parañaque and Las Piñas, down to Bacoor, Imus, Dasmariñas, Silang and Tagaytay in the province of Cavite.

Route

The road consists of the following segments from north to south:

Taft Avenue

Between its northern terminus at the Lagusnilad tunnel of Padre Burgos Avenue and Redemptorist Road in Pasay, R-2 is known as Taft Avenue. It serves the districts of Ermita and Malate running underneath the Manila Light Rail Transit System Line 1 (LRT-1) towards Parañaque via Pasay.

Elpidio Quirino Avenue

Taft Avenue merges with Elpidio Quirino Avenue in the intersection with Redemptorist Road at the Pasay–Parañaque border. This section of R-2 runs the entire length of Parañaque from Baclaran to San Dionisio.

Diego Cera Avenue

R-2 is known as Diego Cera Avenue in Las Piñas. It runs between Villareal Street in the San Dionisio–Manuyo Uno border and Alabang–Zapote Road in Zapote.

Radial Road 9

Radial Road 9, more commonly referred to as R-9, is a network of roads and bridges that altogether form the ninth radial road of Manila in the Philippines. It is the westernmost of the radial roads north of the Pasig River that actually lead to the provinces. The road links the City of Manila with Caloocan, Malabon and Valenzuela in the north, leading out of Metro Manila into the provinces of Bulacan, Pampanga, Tarlac, Pangasinan and La Union.

Route

The road consists of the following segments:

Rizal Avenue

Between the Pasig River front of the district of Santa Cruz and the Monumento Roundabout at the intersection with Epifanio de los Santos Avenue (EDSA) in Caloocan, R-9 is known as Rizal Avenue. It runs underneath the Manila Light Rail Transit System Line 1 (LRT-1) linking Santa Cruz with Grace Park. It is the location of three of Metro Manila's biggest cemeteries, the Manila North Cemetery, La Loma Cemetery and the Manila Chinese Cemetery.

MacArthur Highway

R-9 becomes the MacArthur Highway after crossing the intersection of EDSA and Samson Road at the Monumento Roundabout. It connects South Caloocan with Malabon and Valenzuela running parallel to the North Luzon Expressway (R-8) to the east. The highway crosses into the Central Luzon provinces of Bulacan, Pampanga and Tarlac, and Pangasinan and La Union in the Ilocos Region where it is also known as the Manila North Road. The road terminates at the junction with Kennon Road in Rosario.

Radial Road 10

Radial Road 10, more commonly referred to as R-10, is a planned network of roads and bridges that altogether would form the tenth radial road of Manila in the Philippines. It is the westernmost of the radial roads north of the Pasig River running north-south close to the shoreline of Manila Bay. When completed, the road would link the City of Manila with Navotas, and the northern coastal provinces of Bulacan, Pampanga and Bataan in Central Luzon.

At present, only the Tondo–Navotas segment of the road is complete.

Route

The road consists of the following segments:

Marcos Road

Between the Pasig River front of the district of Tondo and the Bangkulasi Bridge over the Bangkulasi Channel, R-10 is known as President Ferdinand E. Marcos Highway or Marcos Road. It is the only segment of R-10 ever completed, thus the name R-10 is thought only as an alternative name for Marcos Road, instead of a highway network as planned. It passes through the Manila North Harbor complex in Tondo before merging with Circumferential Road 4 (C-4) past the Bangkulasi Bridge in Navotas near the Navotas Fish Port Complex which leads to South Caloocan and Quezon City in the northeast.