Phet Kasem Road

National Highway 4 shield}}
ถนนเพชรเกษม
Thanon Phetkasem
ทางหลวงแผ่นดินหมายเลข 4
ถนนเลียบชายฝั่งพม่า, ถนนกาญจนวณิชย์
Thanon Kanchanawanit, Burma Coast Road
Route information
Part of AH2 AH123
Existed1950–present
Major junctions
North end(Starting from Phetkasem Road) Naow Chamnian Bridge in Bangkok Yai, Bangkok
(Beginning of Highway 4) Phetkasem Road, km.26+420 in Om Yai, Sam Phran, Nakhon Pathom
Major intersectionsAH2-T in Bang Khae, Bangkok
in Nakhon Pathom (Planned)
AH2-TAH123-T in Nakhon Chai Si, Nakhon Pathom
in Nakhon Chai Si, Nakhon Pathom
in Mueang Nakhon Pathom, Nakhon Pathom
AH123-T in Ban Pong, Ratchaburi
in Bang Phae, Ratchaburi
AH2-T in Mueang Ratchaburi, Ratchaburi
in Mueang Ratchaburi, Ratchaburi
AH2-T in Mueang Ratchaburi, Ratchaburi
in Pak Tho, Ratchaburi
in Thayang, Phetchaburi
AH2-T in Cha-am, Phetchaburi
AH2-T in Pranburi, Prachuap Khiri Khan
in Mueang Prachuap Khiri Khan, Prachuap Khiri Khan
in Thasae, Chumphon
AH2-T, in Mueang Chumphon, Chumphon
in Mueang Ranong, Ranong
in Takua Pa, Phang Nga
in Takua Thung, Phang Nga
in Ao Luek, Krabi
(Planned)/ in Ao Luek, Krabi
in Huai Yot, Trang
in Mueang Trang, Trang
in Mueang Trang, Trang
in Mueang Trang, Trang
AH2-T, in Mueang Phatthalung, Phatthalung
in Rattaphum, Songkhla
in Bang Klam, Songkhla
(Planned)/ AH18-T, in Hat Yai, Songkhla
in Hat Yai, Songkhla (Planned)
in Sadao, Songkhla
(Planned)/ in Sadao, Songkhla
South end FT 1, E1 in Sadao Checkpoint, Sadao, Songkhla
Location
CountryThailand
ProvincesBangkok, Samut Sakhon, Nakhon Pathom, Ratchaburi, Phetchaburi, Prachuap Khiri Khan, Chumphon, Ranong, Phang Nga, Krabi, Trang, Phatthalung, Songkhla
Major citiesBangkok, Nakhon Pathom, Prachuap Khiri Khan, Chumphon, Ranong, Phang Nga, Krabi, Trang Phatthalung, Hat Yai, Sadao
Highway system

Phet Kasem Road (Thai: ถนนเพชรเกษม, RTGS: Thanon Phet Kasem, pronounced [tʰā.nǒn pʰét kā.sěːm])[1] or Highway 4 (Thai: ทางหลวงแผ่นดินหมายเลข 4, AH2) is one of the four primary highways in Thailand, along with Phahonyothin Road (Highway 1), Mittraphap Road (Highway 2), and Sukhumvit Road (Highway 3). At 1,310.554 km, route 4 is the longest highway in Thailand.

  1. ^ ราชบัณฑิตยสถาน. อ่านอย่างไร และ เขียนอย่างไร ฉบับราชบัณฑิตยสถาน. พิมพ์ครั้งที่ 22. กรุงเทพฯ : ราชบัณฑิตยสถาน, 2557, p. 58.