The planning and administration of the country's air transport infrastructure is under the shared responsibilitiy of the Airport Authority of Thailand (AAT) and the Civil Aviation Department (CAD) under the Ministry of Transport and Communications.

Thailand has six international airports and more than 29 domestic airports. The largest airport, Don Muang, handles more than 12 million international and nearly 5 million domestic passengers a year. These volumes are expected to more than double by the end of the decade, requiring additional capacity. Of the other international airports, Phuket has been the most successful one. Chiang Mai and Hat Yai have experienced relatively slow growth. Recently, Chiang Rai was upgraded to an international airport to accommodate growing tourism in the Golden Triangle and facilitate future cross-border trade with neighboring countries.

Major air transportation infrastructure projects include the Second Bangkok International Airport (SBIA) at Nong Ngu Hao, the Global Transpark (GTP) at U-Taphao, and the Heavy Aircraft Maintenance Center (HAMC), also at U-Taphao. There will also be various other projects including the expansion of existing international and domestic airports as well as the development of new airports in the provinces. Combined, these projects will enable Thailand to achieve its goal of becoming a regional air transportation hub.



Lampang Airport, Lomsak Airport, Mae Hong Son Airport, Maesai Airport, Nakhon Sawan Airport, Nan Airport, Phitsanulok Airport, Phrae Airport, Tak Airport, Uttaradit Airport



Buri Ram Airport, Chaiyaphum Airport, Khon Kaen Airport, Loei Airport, Nakhon Phanom Airport, Nakhon Ratchasima Airport, Roi Et Airport, Sakon Nakhon Airport, Ubon Ratchatani Airport, Udon Thani Airport



Lop Buri Airport, Nakhon Pathom Airport, Prachuap Khiri Khan Airport, Sattahip Airport



Chumphon Airport, Krabi Airport, Nakhon Si Thammarat Airport, Narathiwat Airport, Pattani Airport, Ranong Airport, Songkhla Airport, Surat Thani Airport, Trang Airport 



Bangkok International Airport, Chiang Mai International Airport, Chiang Rai International Airport, Hat Yai International Airport, Phuket International Airport, U-Taphao International Airport



Thailand's land transportation system consists of a well-developed road network of approximately 170,000 km, a rail network of more than 4,000 km serving all major regions of the country (except Phuket), and the emerging mass transit systems in Bangkok.  The development of a land transportation infrastructure is mainly the responsibility of six agencies :

  1. Bangkok Metropolitan Administration (BMA)

  2. Department of Land Transportation

  3. Expressway and Rapid Transit Authority of Thailand (ETA)

  4. Highways Department (HD)

  5. Metropolitan Rapid Transit Authority (MRTA)

  6. State Railway of Thailand (SRT)


Among major projects are :

  • four-lane highways to all regions of Thailand

  • dual-track rail lines throughout the country

  • a high-speed rail link to the Eastern Seaboard

  • an inland container terminal at Lat Krabang

  • three truck terminals around Bangkok

  • more expressways in Bangkok

  • mass rapid transit systems in Bangkok

  • a mass-transit system in Chiang Mai

The Highways Department is responsible for maintaining and expanding the country's highway network, which amounts to approximately 50,000 km. (1994)



The State Railway of Thailand (SRT) operates under the Ministry of Transportation and Communications. It is responsible for building , operating, and maintaining Thailand's railway tracks. The route length of the network is nearly 4,000 km. of which only 90 km are double-track.

To improve the railway service and network, more double track projects are being implemented, and an even more ambitious second phase is being reviewed. Additionally, the State Railway Authority of Thailand (SRT), which is considering new railway lines, requires more locomotives and rolling stock, and plans to outsource several activities including maintenance of locomotives, rolling stock , and rail tracks. Some of the new railway lines may be privatized. New projects and expanded railways stations will also give rise to property development opportunities and the provision of services.



The development and management of all major deep-sea ports in Thailand falls under the Port Authority of Thailand (PAT). Other ports, including two smaller deep-sea ports, are under the Harbor Department. At present, there are eight international deep-sea ports in operation,with four private ports permitted to handle container cargo. Laem Chabang Commercial Port and Map Ta Phut Industrial Port were completed in 1992. Songkhla and Phuket Ports have been developed to serve Southern Thailand.


Current commercial ports

1. Klong Toey is the largest port in Thailand and can handle approximately 14 millions tons per year (1.4 million TEU/yr.); the depth of the Chao Phraya River basin is 8.5 meters.

2. Laem Chabang can handle about 7.3 million tons per year (0.6 million TEU/yr.); port depth is 12 meters. Currently, four piers are handled by private companies


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