WikiProject Thailand

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Thailand, Asia
Latitude: (13.0, Longitude: 101.5
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Use this template for your city

Thailand is a Country in Asia at latitude 13° 0′ 0″ North, longitude 101° 30′ 0″ East.

Lots of work to do here.


Community

There are some users in Thailand, add your own username if you map in Thailand by adding the following category to your user page (you can add your town or city at the same time). [[Category:Users in Thailand|name]]

OSM community meeting in Chiang Mai, March 2011
Bangkok OSM community mapping party, April 2012

There is an internet forum (message board) and a Facebook group for people in Thailand where you can talk with others about all things regarding OpenStreetMap (OSM) and in particular about mapping in Thailand. In this forum you can write your posts either in Thai language or in English language. If you have any questions about OpenStreetMap in Thailand, feel free to ask there. Proposals for this page can be added on the WikiProject Thailand Drafts page and discussed in the forum.

A nice tool from geofabrik labs was used to generate an animated gif of Thailand. It shows the progress of OSM in Thailand. A big THANK YOU to the community for making that huge progress. Keep on the good work.

Projects

Territory based projects

  • Bangkok - Capital city and largest of Thailand's city by far
  • Phang Nga - Province in the South West. Some people interested in this area
  • Chiang Mai - Province in the North and the 2nd largest city of Thailand
  • Phuket - Island province to the South of Thailand

For a list of Nakhon (City), Mueang (Town) and Tambon (Township) see Wikipedia: List of cities in Thailand

Other projects

  • Remote Surveys - Project for collaborative surveys of cities in Thailand

Conventions

The user-base in Thailand is growing therefore we need to start coordinating.

As OpenStreetMap is a wiki-like project, every user is basically free to choose whatever tags he likes. Over the time some key/value pairs had become standard in the way to tag things. These are documented in the wiki, a good starting point is the Map Features page.

For Thailand some specialties exist in how to tag things here. This page lists only the things that are handled special in Thailand.

When conventions are final they will appear on this page, if they are still under discussion they will be listed on the Talk page.

Multilingual names

The maps Mapnik and Osmarender at OpenStreetMap.org use name=* e.g. the local names for rendering. There are maps available where the language can be chosen:

  • Thailand, Laos, Cambodia, Vietnam: Billingual, local (e.g. Thai) and English
  • World: Several languages. Hint: Select "osm-labels-de" for Thai.

Background according to Wikipedia:

  • "In linguistics, romanization or latinization, alternately spelt as latinisation or romanisation (see spelling differences), is the representation of a written word or spoken speech with the Roman (Latin) alphabet, or a system for doing so, where the original word or language uses a different writing system (or none). Methods of romanization include transliteration, for representing written text, and transcription, for representing the spoken word." Reference: wikipedia: Romanization.
  • "The Royal Thai General System of Transcription (RTGS) is the official system for rendering Thai language words in the Latin alphabet, published by The Royal Institute of Thailand. It is used in road signs and government publications, and is the closest thing to a standard of transcription for Thai, though its use by even the government is inconsistent." References: wikipedia: Royal Thai General System of Transcription and wikipedia: ISO 11940.

How to get the transcription of names:

  1. Collect it from signs when collecting data. Map users will compare to signs.
  2. Wikipedia, other sources on the internet or for names of administrative organisations The Royal Institute: CHANGWAT, KHET, AMPHOE AND KING AMPHOE DIRECTORY.
  3. Use the program for Windows Chulalongkorn University: Thai Romanization Program.
  4. Transcribe yourself according to wikipedia: Royal Thai General System of Transcription.

Tagging example:

name=ภูเก็ต. Local language Thai. Note: There's an ongoing discussion in regard to brand names
name:th=ภูเก็ต. Thai.
name:en=Phuket. "Romanization".

The renderer can create maps in one or two languages:

  • Thai only: e.g. ภูเก็ต
  • English only: e.g. Phuket
  • Bilingual: e.g. ภูเก็ต Phuket just by using the name and the name:en value.

People who can read Thai will prefer the names in Thai due to reasons discussed in wikipedia: Royal Thai General System of Transcription (RTGS). Other people will prefer the transcription of names in Roman characters. When using the map and comparing names to signs or when asking Thai people for help a bilingual map is convenient.

Highway classification

The table shows the classification of the highways used in Thailand for OSM and typical tagging examples. It follows the numbering scheme issued by the Thai authorities - with exception for trunk classification.

But over time e.g. a three-digit highway may become in total or in sections the importance and the standard of a two-digit (primary) or even of a one-digit (trunk) highway. In these cases all or larger sections of this highway can be classified higher. The same applies for urban highways. An unclassified highway without number can be classified tertiary.

In some cases a section of a trunk or primary road that crosses an urban area has lost its role as the fastest route due to a newer road around that urban area. In those cases the bypassed section can be classified lower and the newer and faster way around be upgraded to the bypassed section's former classification.

Please note that there is an active discussion about changing the classification scheme on the [forum], and this scheme may change soon.

See also the Thai highway network article on Wikipedia.

Official classification Reference number OSM tagging

Typical examples

Description, comments Photo
Expressway (ทางพิเศษ) Zeichen 330.svg

N/A

highway=motorway
ref=7
int_ref=AH19
lanes=2
oneway=yes
toll=yes
motorcycle=no
Roads tagged as motorway should be controlled-access highways. They do not provide access to properties, and are not accessible to motorcycles or pedestrians. They are often tolled.

There are two systems of controlled-access highways in Thailand: the motorway and the expressway.

Sirat.jpg
Motorway (ทางหลวงพิเศษ, special highway) Thai Motorway-t7.svg

One or two digits, beginning with 5–9

Thai Motorway-f9.svg

7, 9, 35, 338

highway=trunk
ref=2
int_ref=AH12
lanes=2
name=ถนนมิตรภาพ
name:th=ถนนมิตรภาพ
name:en=Mittraphap Road
oneway=yes
Green-background signs denote routes which are legally designated as motorways but currently lack full access control. They are usually accessible to motorcycles, and may provide access to adjacent properties. They should be tagged as highway=trunk (see below). Hgwy1amphoekokha090515.jpg
National Highway (ทางหลวงแผ่นดิน) Thai Highway-2.svg

One digit, beginning with 1–4

Trunk classification should be applied to roads that look like motorways and are geared towards fast far-distance traffic, but are toll free and with unrestricted access; even bicycles and pedestrians may use them. Characteristics include:
  • Speed limit and average speed of /h or more.
  • Motorcycles may or may not be limited to the left lane.
  • At least 2 lanes in each direction with a ditch or barrier separating traffic in each direction.
  • Designated places for U-turns are typical.
  • Junctions hardly impeding the traffic on the trunk, traffic lights are not common.

If sections of other highways fulfil the above specification, those sections should also be classified as trunk roads.

Thai Highway-22.svg

Two digits, beginning with 1–4

highway=primary
ref=205
name=ถนนสุรนารายณ์
name:th=ถนนสุรนารายณ์
name:en=Suranarai Road

Primary roads are built for long-distance travel, typically beyond province borders. They are mostly 1, 2 or 3 digit roads that do not meet trunk standards.

Examples are

Highway 22: Udon Thani–Nakhon Phanom
Highway 205: Lopburi–Nakhon Ratchasima

Typical features of primaries are:

2 or more lanes, wide enough for two vehicles to pass each other without reducing speed
often extra lanes on the side (shoulder), comfortably wide for bicycles and motorcycles
paved (asphalt or concrete)
SakhonNakhonHw22 20090514b.jpg
Thai Highway-205.svg

Three digits, beginning with 1–4

Thai Highway-3278.svg

Four digits, beginning with 1–4

highway=secondary
ref=3278
name=ถนนเสรีไทย
name:th=ถนนเสรีไทย
name:en=Seri Thai Road
Secondary roads are major roads inside a province.

E.g. Highway 3278: Min Buri - Bang Kapi (Bangkok)

Typical features of secondaries are:

2 lanes
often a 4 digit road maintained on national level, white sign.
paved (asphalt or concrete)

Note that new roads often receive a 4-digit reference number, regardless of their importance - they might also be primaries or tertiaries.

ทางหลวง 3306, อำเภอเลาขวัญ, Jan2013.JPG
Rural road (ทางหลวงชนบท, rural highway) Yasothon Rural Rd 4011.jpg

Two-letter province code and four digits

highway=tertiary
ref=ยส.4011
E.g. Highway ยส.4011:, a rural road in the province Yasothon

Tertiary roads

connect two or more villages/hamlets
are often 4 digit roads maintained on province level, blue sign.
most of them are paved, but unpaved roads are possible (adding a surface tag is appropriate)

Note that the provincial code is an integral part of the reference number. If you cannot type Thai characters, use e.g. "xx" to denote the presence of the provincial code rather than omitting it completely.

Roads that have a provincial prefix in their reference number should be tagged with ref=pf.nnnn where pf is the provincial prefix in Thai characters, followed by a dot, followed by the numerical portion of the reference number. There should be no spaces in the ref tag value.

Concession highway (ทางหลวงสัมปทาน) N/A N/A Concession highway is an administrative classification. Classification should follow the road's characteristics.
Local route (ทางหลวงท้องถิ่น, local highway) Local ref milepost for Wiki (IMG 4626).jpgสท.ถ1-0011

(Administrative reference, usually not signposted)

highway=unclassified Typically unclassified roads in Thailand are the roads having no designated number and connect villages to major highways. Unclassified is used for minor public roads typically at the lowest level of the interconnecting grid network. Unclassified roads have lower importance in the road network than tertiary roads, and are not residential streets or agricultural tracks. Unclassified roads are considered usable by motor cars.

The photo shows a milestone located in Sukhothai province illustrating the fact that some local highways are marked in this fashion.

N/A N/A
highway=residential
highway=living_street
highway=pedestrian
highway=footway
highway=service
highway=track
highway=path

References

Map Features #Highway
Highway tag usage
Tagging samples/out of town
Tagging samples/urban
Asia/Asian Highway Network

Fuel stations

Use amenity=fuel to tag the location. The name is going to name=*, name:en=*, name:th=* respective operator=*, operator:en=*, operator:th=*. Some, may be the most common fuel stations are:

The fuel types can be tagged as described here Tag:amenity=fuel.

Waterways

Besides the tags listed in Map Features the following tagging is common in Thailand. Try adding width=* to specify the width of the waterway.

Tag Element Natural waterways Rendering Photo
waterway=riverbank Area Used for larger rivers (more than 12m wide), to define an area between the opposite riverbanks. Rendering-waterway-riverbank.png
Chao Phraya - Horizons.JPG
waterway=river Way Larger river, แม่น้ำ (Mae Nam). Typically wider than 5m. If the waterway is smaller than 5 meters you should consider using waterway=stream instead. Rendering-waterway-river.png
Khek River in Wang Thong.jpg
waterway=stream Way Naturally formed waterway. Typically smaller than 2m, but can be used up to 5m (e.g. if the water is not deep and people can walk through it).
Rendering-waterway-stream-mapnik.png
BangSpa3.jpg
Tag Element Man-made waterways Rendering Photo
waterway=canal Way If the name of the waterway contains the word "Khlong" (Thai: คลอง) or if it looks like a typical canal or khlong we should tag it as "canal". Add boat=* where appropriate.
Bkkpadungkrungkasem03.jpg
waterway=ditch Way If the waterway is significant smaller than a typical canal (less than 2 meters), chances are good that it is a "ditch".
Klong Isaan.jpg
waterway=drain Way If it is made out of concrete (คอนกรีต) or build from other hard materials, it is maybe a "drain". A drain must not nessessarily contain water all the time. In dry seasons it could be dry and only be filled while it is raining! If the width exceeds 3 meters and the drain does contain water most of the time consider using waterway=canal instead.
Example Drain.jpg

Administrative levels

In Thailand there are 2 systems, the provincial and the local administration. References: wikipedia: Administrative divisions of Thailand and Thailand subforum.

The provincial administration is hierarchical and centrally controlled by Department of Provincial Administration and Ministry of Interior:

Kingdom of Thailand > province > district > subdistrict > village
Ratcha Anachak Thai > changwat > amphoe > tambon > muban
ราชอาณาจักรไทย > จังหวัด > อำเภอ > ตำบล > หมู่บ้าน).

The local administration is administrated locally under the support of Department of Local Administration:

  • county (Provincial Administrative Organization (PAO), องค์การบริหารส่วนจังหวัด (อบจ)): same boundary as province.
  • municipality (thesaban, เทศบาล) has 3 classes:
    1. city (thesaban nakhon, เทศบาลนคร)
    2. town (thesaban mueang, เทศบาลเมือง)
    3. township (thesaban tambon, เทศบาลตำบล).
A municipality can cover
  • tambon (Tambon Administrative Organization (TAO), องค์การบริหารส่วนตำบล (อบต)
can cover one or more adjoining subdistricts in the same district, also subdistricts partially if area shared with a municipality.
  • community (chumchon, ชุมชน)
is administrated by a municipality and can be part of a subdistrict or cover parts of more than one subdistrict. Sometimes they share the same area as the Muban within the municipality

References: wikipedia: Thesaban and wikipedia: List of cities in Thailand.

There are two special cases:

  • Bangkok Metropolitan
is divided into khet (เขต) which are divided into khwaeng (แขวง).
is both a local administration as well as at province level
  • City of Pattaya
is part of but not administrated by Amphoe Bang Lamung. This is not reflected here and probably can't be tagged in OSM anyhow.
there are more special administrative areas in planning to be similar with Pattaya, i.e. Mae Sot, Ko Samui, Hua Hin Cha-am.

The table shows the values for Key:admin_level and for Key:place. Municipality extends in parallel to subdistrict and may be more or less than one subdistrict. 10 administrative levels are used. The table lists the terms for the administrative units in English, Romanized Thai and Thai.

Country Administrative levels Key:admin_level and Key:place
1 2 3 4 5 6 7 8 9 10
Flag of Thailand Thailand
English
N/A Kingdom of Thailand N/A Province /
Bangkok
N/A District /
Bangkok: Khet
N/A Subdistrict /
Bangkok: Khwaeng
N/A Village place=hamlet
Municipality City place=city
Municipality Town place=town
Municipality Township place=town
Tambon Administrative Organization (TAO) place=village
Community
place=neighbourhood
Flag of Thailand Thailand
Romanized Thai
- Ratcha Anachak Thai - Changwat /
Krungthep
- Amphoe /
Krungthep: Khet
- Tambon /
Krungthep: Khwaeng
- Muban place=hamlet
Thesaban Nakhon place=city
Thesaban Mueang place=town
Thesaban Tambon place=town
Tambon Administrative Organization (TAO) place=village
Chumchon
place=neighbourhood
Flag of Thailand Thailand
ไทย
- ราชอาณาจักรไทย - จังหวัด /
กรุงเทพฯ
- อำเภอ /
กรุงเทพฯ: เขต
- ตำบล /
กรุงเทพฯ: แขวง
- หมู่บ้าน place=hamlet
เทศบาลนคร place=city
เทศบาลเมือง place=town
เทศบาลตำบล place=town
องค์การบริหารส่วนตำบล (อบต.) place=village
ชุมชน
place=neighbourhood

Addresses

In Thailand addresses general consist of

Term Example Tag Photo
English Romanized Thai Thai Romanized Thai addr=*
housenumber Lekthi Ban เลขที่บ้าน 85/1 addr:housenumber Addr hamlet subdistrict district province.jpg
hamlet Muban (Mu) หมู่บ้าน (หมู่) Mu 2 addr:hamlet
subdistrict Tambon ตำบล Bang Talad addr:subdistrict
district Amphoe อำเภอ Pak Kret addr:district
province Changwat จังหวัด Nonthaburi addr:province


Data sources

In addition to a survey with GPS one may also use some aerial images if available with a suitable license.

Bing aerial imagery is available in many parts. Landsat provides coverage of the whole country and is available with different image modes.


World of maps contains a map of Thailand that is in the public domain

Quality Control