National Highway 32
ทางหลวงแผ่นดินหมายเลข 32
AH1, AH2 and Highway 32 in Ayutthaya
Route information
Part of AH1 AH2
Length	150.545 km (93.544 mi)
Existed	1973–present
Major junctions
From	Bang Pa-in Interchange in Bang Pa-In, Ayutthaya Province
To	Luang Por O Junction in Manorom, Chainat Province
Location
Country	Thailand
Highway system
Highways in Thailand Motorways Asian Highways

Highway 32 (Thai: ทางหลวงแผ่นดินหมายเลข 32, RTGS: Thang Luang Phaendin Mai Lek 32) is a national highway in Thailand.

It begins in Bang Pa-In District in Phra Nakhon Si Ayutthaya Province at the junction of Phahonyothin Road (Highway 1) and the Outer Bangkok ring road (Motorway 9), then passes through the provinces of Ang Thong, Singburi, and Chainat, where it merges back into Phahonyothin Road directly at the border with Nakhon Sawan Province.

Until the mid-1990s, this highway was tolled. Two toll booths are still there today, but are now used as an administration building.

Compared with other long haul routes in the same direction, Highway 32 provide a shorter and faster way from Bangkok to Nakhon Sawan and Northern Thailand. It belongs to the Asian Highway Network's AH1 and AH2 and the Kunming-Bangkok Expressway.

From 2008 to 2009, due to the high volume of traffic between Bangkok and Nakhon Sawan, the highway was expanded from four lanes to six lanes and in some sections eight lanes.

• ThinkNet:Road Map of Thailand. MapMagic CD + Paper Map.Multi-Purposes Bilingual mapping software, Bangkok, 2008 edition.

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