Radial Road 3 (R-3), informally known as the R-3 Road, is a network of roads and bridges which comprise the third

arterial road An arterial road or arterial thoroughfare is a high-capacity urban road that sits below highway A highway is any public or private road or other public way on land. It includes not just major roads, but also other public roads and rights o ...

Metro Manila Metropolitan Manila ( ), commonly shortened to Metro Manila and formally the National Capital Region (NCR; ), is the capital region and largest List of metropolitan areas in the Philippines, metropolitan area of the Philippines. Located ...

in the

Philippines The Philippines, officially the Republic of the Philippines, is an Archipelagic state, archipelagic country in Southeast Asia. Located in the western Pacific Ocean, it consists of List of islands of the Philippines, 7,641 islands, with a tot ...

. It connects the cities of

Manila Manila, officially the City of Manila, is the Capital of the Philippines, capital and second-most populous city of the Philippines after Quezon City, with a population of 1,846,513 people in 2020. Located on the eastern shore of Manila Bay on ...

Makati Makati ( ; ), officially the City of Makati (), is a highly urbanized city in the National Capital Region of the Philippines, known for being one of the leading financial centers in the country. As of 2013, the city has the highest concent ...

Pasay Pasay, officially the City of Pasay (; ), is a Cities of the Philippines#Legal classification, highly urbanized city in the Metro Manila, National Capital Region of the Philippines. According to the 2020 Philippine census, 2020 census, it has a ...

Taguig Taguig (), officially the City of Taguig (), is the List of cities in the Philippines, fifth-most populous city in the Philippines situated on the eastern shores of Metro Manila, the national capital region. It is a center for culture, finance ...

Parañaque Parañaque, officially the City of Parañaque (, ), is a Cities of the Philippines#Legal classification, highly urbanized city in the Metro Manila, National Capital Region of the Philippines. According to the 2020 census, it has a population of ...

, and

Muntinlupa Muntinlupa (), officially the City of Muntinlupa (), is a Cities of the Philippines#Legal classification, highly urbanized city in the Metro Manila, National Capital Region of the Philippines. According to the 2020 census, it has a population o ...

Route description

Osmeña Highway

Between its northern terminus at the intersection with Quirino Avenue ( C-3) in Paco district and

EDSA Epifanio de los Santos Avenue, commonly referred to by its acronym EDSA (), is a major Ring road, circumferential road around Manila, the capital city of the Philippines. It passes through 6 of Metro Manila's 17 local government units or citi ...

( C-4) at

Magallanes Interchange The Magallanes Interchange is a four-level partial turbine interchange in Makati, Metro Manila, Philippines. It serves as the junction between the Osmeña Highway, Epifanio de los Santos Avenue (EDSA), and South Luzon Expressway (SLEX) while al ...

, R-3 is known as Osmeña Highway. It used to be known as ''South Superhighway'' and was renamed after

Commonwealth A commonwealth is a traditional English term for a political community founded for the common good. The noun "commonwealth", meaning "public welfare, general good or advantage", dates from the 15th century. Originally a phrase (the common-wealth ...

president

Sergio Osmeña Sergio Osmeña Sr. (, ; zh, c=吳文釗, poj=Gô͘ Bûn-chiau; September 9, 1878 – October 19, 1961) was a Filipino people, Filipino lawyer and politician who served as the List of presidents of the Philippines, fourth president of the Ph ...

. The South Luzon Expressway (SLEX) fills a gap in Barangay Magallanes, Makati, between the Magallanes Interchange and the old northern terminus of West Service Road, located next to

Skyway A skyway, skybridge, skywalk, or sky walkway is an elevated type of pedway connecting two or more buildings in an urban area, or connecting elevated points within mountainous recreational zones. Urban skyways very often take the form of Cover ...

's Magallanes on-ramp at the city's boundary with

East Service Road and West Service Road

R-3 later follows the alignment of East and West Service Roads, both

frontage road A frontage road (also known as an access road, outer road, service road, feeder road, or parallel road) is a local road running parallel to a higher-speed, limited-access road. Where parallel high-speed roads are provided as part of a maj ...

s parallel to the South Luzon Expressway from Sales Interchange in Pasay and

to Alabang Exit in

. The alignment of West Service Road starts as a zipper lane on the southbound lane of SLEX at the Makati–Pasay boundary, extending as a shoulder onto Sales Interchange, while that of East Service Road commences at Lawton Avenue in Taguig. However, the R-3 section of West Service Road terminates at its sharp curve next to SLEX's Alabang and South Station Exits.

Manila South Road

Finally, R-3 traverses the entirety of the Muntinlupa segment of Manila South Road (National Highway), serving as the logical continuation of the East Service Road. It stretches from its junction with Montillano Street and

Alabang–Zapote Road Alabang–Zapote Road is a four-lane national road which travels east–west through the southern limits of Metro Manila, Philippines. It runs parallel to Dr. Santos Avenue in the north and is named after the two barangays it links: Alabang, Mu ...

beneath SLEX's Alabang Viaduct in

Alabang Alabang () is a barangay in Muntinlupa, Philippines. At one time, the area was a farming district and has since grown from a village to a major commercial center, including Filinvest City, Madrigal Business Park, and a transportation hub. It ...

to the Muntinlupa Bridge, which crosses the Tunasan River at the city's border with San Pedro, Laguna.

References

{{Road infrastructure in Manila Routes in Metro Manila