Phetkasem highway
From Wikipedia, the free encyclopedia
 (ทางหลวงแผ่นดินหมายเลข) National highway 4 |
|
| Length (kilometres) | 1,274 |
|---|---|
| Direction | North - South |
| Start | Bangkok |
| Main destinations | Nakhon Pathom Chumphon Phattalung Ban Khu Ha Hat Yai Sadao |
| End | Sadao checkpoint Malaysia-Thailand border |
| Asian Highway Network | AH 2 |
The Phetkasem highway (Thai: ถนนเพชรเกษม) (National highway 
AH 2) or the 4th highway is the longest highway of Thailand, 1,274 km. It begins at Naowa Chamnian bridge in Bangkok Yai, Bangkok. It is named after Luang Phetkasemwithisawasdi, the 7th Director General of Highway department of Thailand.
The provinces along the road are Samut Sakhon, Nakhon Pathom, Ratchaburi, Phetchaburi, Prachuap Khiri Khan, Chumphon, Ranong, Phang Nga, Krabi, Trang, Phattalung and Songkhla, linked to North-South Expressway (NSE) of Malaysia at Sadao pass and Bukit Kayu Hitam pass.
Three sections of the highway are also the Asian Highway AH2.
- From Nakhon Pathom to Chumphon
- From Phattalung to Ban Khu Ha
- From Hat Yai to Malaysia border, where it connects to the North-South Expressway, Malaysia
