View source for Highway system in Taiwan

{{short description|none}} <!-- "none" is preferred when the title is sufficiently descriptive; see [[WP:SDNONE]] -->
Highways in [[Taiwan]] are classified into five types:
{|class=wikitable
!Level!!Name!!Chinese!![[Taiwanese Mandarin]]!![[Taiwanese Hokkien]]!![[Taiwanese Hakka]]!!Numbers!!Notes
|-
|1||National Highways||{{large|{{lang|zh-tw|國道}}}}||Guódào||Kok-tō||Koet-tho||1–10||Labeled as [[Freeway]]
|-
|2||Provincial Highways||{{large|{{lang|zh-tw|省道}}}}||Shěngdào||Séng-tō||Sén-tho||1–39, 61–88||The latter are labeled as [[Limited-access road|Expressway]]
|-
|3||County and City Highways||{{large|{{lang|zh-tw|縣道、市道}}}}||Xiàndào, Shìdào||Koān-tō, Chhī-tō||Yen-tho, Sṳ-tho||101–205||
|-
|4||Township and District Roads||{{large|{{lang|zh-tw|鄉道、區道}}}}||Xiāngdào, Qūdào||Hiong-tō, Khu-tō||Hiông-tho, Khî-tho|| ||
|-
|5||Special Roads||{{large|{{lang|zh-tw|專用公路}}}}||Zhuānyòng Gōnglù||Choan-iōng Kong-lō͘||Chôn-yung Kûng-lu|| ||
|}

The system does not apply to other parts of Taiwan, namely [[Kinmen]] and [[Matsu Islands|Lienchiang]] counties, and [[List of islands of Taiwan|islands in the South China Sea]].

Expressways in Taiwan may be controlled-access highways similar to National Freeways or limited-access roads. Most have urban roads 
and intra-city expressways (as opposed to Highway system) status, although some are built and maintained by cities.

== Pedestrians ==

Pedestrian safety is an issue in Taiwan and is a topic where little progress has been observed. The number of pedestrian deaths have remained mostly the same over the 2010s, from 429 deaths in 2011 to a high of 458 in 2019 to 410 in 2021. The number of injured pedestrians climbed, from 13,787 in 2011 to 15,589 in 2021.<ref>{{cite web | url=https://www.taipeitimes.com/News/feat/archives/2022/08/06/2003783058 | title=Taiwan: A 'living hell for pedestrians'|website=Taipei Times | date=6 August 2022 |author1=Han Cheung}}</ref>

This record is related to the lack of pedestrian-friendly infrastructure and public education on pedestrian safety.<ref>{{cite web | url=https://www.taipeitimes.com/News/feat/archives/2022/08/06/2003783058 | title=Taiwan: A 'living hell for pedestrians'|website=Taipei Times | date=6 August 2022 |author1=Han Cheung}}</ref>

==The numbering system==
As a general rule, the odd numbers represent north–south highways and even numbers represent east–west. The numbers increase moving west to east and north to south. Major north-south provincial highways are indicated by a one-digit number. [[Special route]]s of a highway use the same number, followed by a [[celestial stem|heavenly stem]] character (for example, [[National Freeway 3A|National Freeway 3甲]]). However, for English translation, these characters are replaced by letters in the alphabetical order (for example, National Freeway 3A).

==National highways==
National highways are [[freeway]]s with controlled access.{{refn|group=nb|This term "''free''way" means "''free'' of [[Traffic Signal|signals]]", not "''free'' of charge"}}

[[File:Autobahnnetz Taiwan.svg|thumb|300px|National highways of Taiwan]]

=== History ===
The first [[controlled-access highway]], and a predecessor to the national highways in Taiwan, was the [[MacArthur Thruway]], built in 1964 between [[Keelung]] and [[Taipei]].<ref>{{cite news | url=http://www.newdaai.tv/?view=detail&id=81972 | title=Da Ai Headlines for May 2, 2011 | date=2011-05-02 | work=Da Ai World News | access-date=2012-01-10}}{{dead link|date=April 2025|text=It may be difficult to find an archival link that shows what that page looked like in 2011 or 2012, since it is a frequently-updated website. A better source may be needed.}}</ref> Construction on the first modern national highway, [[National Highway 1 (Taiwan)|National Highway 1]], began in 1971. The northern section between [[Keelung]] and [[Zhongli District|Zhongli]] was completed in 1974, and the entire freeway was completed in 1978. It runs from the northern harbor city of [[Keelung]] to the southern harbor city of [[Kaohsiung]], while there was an {{convert|8.6|km|mi|adj=on}} branch (No. 1A) connecting to Chiang Kai-shek International Airport (now [[Taiwan Taoyuan International Airport]]).

Construction began on the other freeways in the late 1980s. The northern section of the second north–south freeway ([[National Highway 3 (Taiwan)|National Highway 3]]) between [[Xizhi]] and [[Hsinchu]] was completed in 1997. The No. 1A Branch was extended to link No. 3 Freeway at [[Yingge, Taipei]], and renamed as the [[National Highway 2 (Taiwan)|National Highway 2]]. Three other short freeways (No. 4, No. 8, and No. 10) were built to link the two north–south freeways in [[Taichung County]] (now part of [[Taichung City]]), [[Tainan County]] (now part of [[Tainan City]]), and [[Kaohsiung County]] (now part of [[Kaohsiung City]]), respectively. The entire No. 3 Freeway was completed in January 2004.

To ease the congestion of No. 1 Freeway in the [[Taipei metropolitan area]], a {{convert|20|km|mi|adj=on}} [[viaduct]] was built in 1997 along the original freeway between [[Xizhi]] and the [[Wugu District]] of New Taipei to serve as a bypass for traffic not exiting and entering the freeway within Taipei.

The construction of a freeway connecting the [[Taipei metropolitan area]] and [[Yilan County, Taiwan|Yilan County]] began in 1991 and was completed in June 2006. It includes a {{convert|12.9|km|mi|adj=on}} tunnel ([[Hsuehshan Tunnel]]), which is the ninth-longest road [[tunnel]] in the world. An extension from [[Yilan County, Taiwan|Yilan County]] to [[Hualien County]] is planned. However, its construction is being delayed by environmental concerns.

On January 2, 2014, the toll system was converted to a distance-based one. Tolls are no longer collected at toll booths but automatically by [[Electronic Toll Collection (Taiwan)|electronic toll collection]] (ETC).

=== Features ===
==== Length, exits, and entrances ====
<gallery>
Image:TaiwanFwy3GuansiSinpuExit.jpg|Exit advance
Image:TaiwanFwy3Jct.jpg|Freeway entrance
Image:Taiwan Freeway Exit Sign.gif|The pre-2006 Taiwan freeway exit sign. The 27 indicates that the exit is the 27th exit, calculated from the northernmost / westernmost point of the freeway.
Image:Taiwan Freeway New Exit Sign.gif|The post-2005 Taiwan freeway exit sign. The 27 indicates that the exit is located at the 27th kilometer, calculating from the northernmost / westernmost point of the freeway. Provincial expressways also allow it in 2007.
</gallery>
Every one tenth of a kilometer is marked on the freeway with Arabic numerals to indicate freeway mileage, which indicates the number of kilometers away from the northern end or western end of the freeway.  Exit numbers are based on the freeway mileage.  With the notable exception of exit-only signs, which are only expressed in Chinese (but with a right arrow indicating an exit-only lane), exit notification and system route reminder signs in the freeway system are almost identical to their US counterparts.

[[Image:Taiwan Freeway Exit Only Road Diagram.PNG|thumb|150px|A diagram that distinguishes an exit only lane from the regular lanes. The exit only lane has a right-turn arrow symbol and Chinese characters that say "Exit exclusive lane."]]

There are four types of exit notification signs. The first notification sign appears two kilometers before the exit, providing the destination name and an Exit 2&nbsp;km notice.  The second sign appears one kilometer before the exit, providing the destination name and a Right Lane notice. The Right Lane notice warns the exiting driver to start switching to the right lane in preparation to exit and does not necessarily indicate that the right lane is an exit-only lane. The third sign appears a few hundred meters before the exit, providing the destination name and a right tilted arrow. The fourth sign is located at the exit and says Exit with a tilted right arrow.

[[Image:Taiwan Freeway 2km Exit Sign.gif|thumb|150px|Sign that indicates that the exit is two kilometers away.]]

[[Image:Taiwan Freeway 1km Exit Sign.gif|thumb|150px|Sign that indicates that the exit is one kilometer away.]]

Exit notification signs were slightly altered in December 2005. The green exit mileage label on top of the exit notification sign has been replaced with a yellow exit mileage label accompanied with the Chinese code name of the interchange. The Chinese code name of the interchange does not necessarily reflect the destinations listed on the exit signs and may represent the general location of the freeway interchange.

Long rectangular-dash dividers usually separate normal lanes. Short rectangular-dash dividers usually indicates a lane that is ready to turn into an exit, a merging lane, or a lane reserved for vehicles that have difficulty climbing high grade regions of the freeway.

Freeway entrances may have traffic lights to control the flow of vehicles entering the freeway.

==== Speed limit ====
The speed limit for cars on Taiwan's freeways range from 80&nbsp;km/h (50&nbsp;mph) on [[National Highway No. 5 (Taiwan)|Freeway No. 5]] (north of [[Toucheng, Yilan]]) to 110&nbsp;km/h (68&nbsp;mph) on [[National Highway No. 3 (Taiwan)|Freeway No. 3]] (south of [[Tucheng City|Tucheng, New Taipei]]). The speed limit for trucks are usually 10&nbsp;km/h lower. In non-traffic jam conditions, a vehicle must travel at least 60&nbsp;km/h (37&nbsp;mph).

Speed limits are enforced through [[traffic enforcement camera|radar activated cameras]] that take pictures of speed-violating cars.  Because of protests, yellow warning signs are given in advance in Chinese of approaching radar activated cameras.

==== Following distances ====
As [[tailgating]] poses serious hazards of rear-ending, Article 6 of the Freeway and Expressway Traffic Control Regulation ({{zh|t=高速公路及快速公路交通管制規則}}) requires the following minimum following distances when the weather is fine:
{| border="1"
! Speed
! Minimum distance per large vehicle<br>(大型車)
! Minimum distance per small vehicle<br>(小型車)
|-
| 60&nbsp;km/h
| 40&nbsp;m
| 30&nbsp;m
|-
| 70&nbsp;km/h
| 50&nbsp;m
| 35&nbsp;m
|-
| 80&nbsp;km/h
| 60&nbsp;m
| 40&nbsp;m
|-
| 90&nbsp;km/h
| 70&nbsp;m
| 45&nbsp;m
|-
| 100&nbsp;km/h
| 80&nbsp;m
| 50&nbsp;m
|-
| 110&nbsp;km/h
| 90&nbsp;m
| 55&nbsp;m
|}
Longer following distance is required in the [[Hsuehshan Tunnel]].

====Traveling through tunnels====
In the tunnel portions of freeways, lane change is prohibited when the lane divider consists of two parallel solid lines, used when lane change is considered unsafe should a collision cause a vehicular fire.  Headlights must be turned on when traveling through tunnels; this is enforced by special cameras. Unlawful lane change or failure to turn on headlights in a tunnel is subject to an administrative fine of 3000 [[new Taiwan dollar]]s.

Additional restrictions apply for the [[Hsuehshan Tunnel]] on Freeway No. 5, which is the longest tunnel in the entire system.
<!----See that article for further information.---->

==== Prohibited traffic ====
Article 19 of the Freeway and Expressway Traffic Control Regulation prohibits uses of and entries onto the freeways by:
# Pedestrians.
# Military troops marching or conducting drills.
# Non-motorized vehicles
# Motorcycles (see also [[Restrictions on motorcycle use on freeways#Taiwan]] for more information).
# Three-wheel motor vehicles or motorized pedicabs.
# Farm machineries.
# Motorized machineries not being motor vehicles.
# Towed vehicles not disabled on the freeways or [[#Expressways|expressways]].

==== [[Electronic Toll Collection (Taiwan)|Electronic toll collection]] ====
Odd-numbered freeways have tolls, which are automatically collected by [[Electronic toll collection|ETC]]. The current rate for cars is (NT$1.2/km up to 200&nbsp;km) + (NT$0.9/excess km), km being kilometers traveled per day. The first 20&nbsp;km per day is free and thus deducted from the distance. Freeways may be used directly, but users are advised to apply for an “eTag”, which is free and when equipped gives 10% discounts and allows you to store pre-paid money for tolls. The eTag can also be set to pay tolls automatically with credit card or a savings account. Users without the eTag pay tolls at convenience stores 3 days after usage and if not, bills will be mailed to car owners.

=== Service and Rest Areas ===
<gallery>
Image:Taiwan road sign Art110.png|Service Area Ahead
Image:TW-Art111.png|Exit to Service Area
Image:TW-Art112.png|Rest Area Ahead
Image:TW-Art113.png|Exit to Rest Area
</gallery>
Freeway service and rest areas start appearing south of Taoyuan City on the No. 1 and No. 3 freeways.  Most rest areas provide gas stations, gift shops, convenience stores, and food courts. The Qingshui rest area located on the 172.4&nbsp;km mileage marker of National Highway No. 3 is so popular that visitors can only park for 45 minutes and are prohibited from barbecuing.

=== List of national highways ===
{{Highway system OSM map
  | highway_system_qid = Q61669822
  | frame-lat = 
  | frame-long = 
  | frame-width = 200
  | frame-height = 250
  | zoom = 
  | length = yes
  | plain = 
  | text = Map of national highways
  | frame-align = right
  }}
There are eight national highways as of 2011. They are administered by the National Freeway Bureau.

* [[National Freeway 1|No. 1]] ([[Keelung|Keelung City]] - [[Cianjhen District|Qianzhen]], [[Kaohsiung]]): 374.4&nbsp;km, completed on October 31, 1978
** No. 1A (Zhuwei, [[Dayuan District]] - [[Guishan District]]): Planned; No. 1A originally ran from Taiwan Taoyuan International Airport to the airport interchange; this is now part of National Freeway No. 2
* [[National Freeway 2|No. 2]] ([[Taiwan Taoyuan International Airport]] - [[Yingge District|Yingge]], [[New Taipei]]): 20.4&nbsp;km, completed on August 24, 1997
** No. 2A ([[Dayuan District, Taoyuan]] - Dayuan District, Taoyuan): Under construction
* [[National Freeway 3|No. 3]] (Dawulun, [[Keelung City]] - [[Linbian, Pingtung]]): 432.0&nbsp;km, completed on January 11, 2004
** [[National Freeway 3A|No. 3A]] ([[Da'an District, Taipei|Da'an]], [[Taipei City]] - [[Shenkeng, Taipei]]): 5.6&nbsp;km, completed on March 21, 1996
* [[National Freeway 4|No. 4]] ([[Qingshui, Taichung]] - [[Tanzi, Taichung]]): 28.0&nbsp;km, completed in November 2001
* [[National Freeway 5|No. 5]] ([[Nangang District (Taipei)|Nangang]], [[Taipei City]] - [[Su-ao, Yilan]]): 54.3&nbsp;km, completed on January 16, 2006
* [[National Freeway 6|No. 6]] ([[Wufeng, Taichung]] - [[Puli, Nantou]]): 37.6&nbsp;km, completed on March 21, 2009
* [[National Freeway 7|No. 7]] (Kaohsiung Port to Freeway 10): Currently under construction
* [[National Freeway 8|No. 8]] ([[Annan District|Annan]], [[Tainan City]] - [[Xinhua, Tainan]]): 15.5&nbsp;km, completed in February 2000
* [[National Freeway 10|No. 10]] ([[Zuoying District|Zuoying]], [[Kaohsiung City]] - [[Cishan District|Cishan, Kaohsiung]]): 33.8&nbsp;km completed in February 2000

{{Freeways and Expressways in Taiwan}}

==Provincial Highways==
[[Image:TaiwanHwy1Hwy68.jpg|thumb|right|150px|Taiwan Highways 1 and 68 near Hsinchu]]
[[Image:TW PHW61.svg|100px|left]]
Provincial highways (of the [[Taiwan Province]]) are administered by [[Directorate General of Highways]] under Department of Transportation and Communications since 1999. Before the mid-1990s, the route numbers of provincial highways were limited to 1–27. In 1992, planning started for 12 east–west expressways and the West Coast Expressway, indicated by route numbers greater than 60, to ease the congestion in the freeways. Some of these expressways are still under construction.

Many of these provincial highways cross through the [[Special municipality (Republic of China)|special municipalities]] (i.e. [[Kaohsiung]], [[New Taipei]], [[Taichung]], [[Tainan]], [[Taipei]]) which are not part of [[Taiwan Province]]. Officially, provincial highways are now known as ''Taiwan highways'', but many people still refer to them as provincial roads ({{zh|t=省道|p=Shěng Dào}}).

In 2007, provincial expressways started using the same exit notification signs that national freeways started using in 2006.

The following is a list of all provincial highways as of 2 August 2006:{{needs update|date=April 2025}}<ref>{{cite web|url=http://www.thb.gov.tw/main_05_road_03_01_body.htm|title=Provincial road table|language=zh|url-status=dead|archive-url=https://web.archive.org/web/20060810143518/http://www.thb.gov.tw/main_05_road_03_01_body.htm|archive-date=10 August 2006|publisher=中華民國交通部公路局}}</ref>

{{Taiwan Provincial Highways}}
{{Imageframe|width=330|content=[[File:Map of Taiwan Provincial Highways.svg|330px]]|caption=Ordinary Provincial Highways (blue) and Expressways (red), Bypass (green)}}

=== Ordinary Provincial Highways ===
* [[Provincial Highway 1 (Taiwan)|1]] ([[Taipei]] - Fenggang, Pingtung): This is the historical north–south highway (縱貫公路).
** 1A ([[Taipei]] - [[Taoyuan District]], [[Taoyuan City]])
** 1B ([[Daya District|Daya]], Taichung - Wangtian, Taichung)
** 1C (Changhua City bypass)
** 1D (Citong - Douliu)
** 1E (Kaohsiung - Houzhuang)
** 1F (Zhunan - Luzhunan)
* [[Provincial Highway 2 (Taiwan)|2]] (Guandu, Taipei - [[Su-ao, Yilan]]) (North Coast Highway)
** 2A ([[Jinshan District|Jinshan]], [[New Taipei]] - [[Taipei]])
** 2B ([[Taipei]] - [[Tamsui District|Tamsui]], [[New Taipei]])
** 2C ([[Nuannuan District|Nuannuan]], [[Keelung]] - [[Daxi, Yilan]])
** 2D (Badu, Keelung - Rueibin, New Taipei)
** 2E (Wujie - Su'ao)
** 2F (Dawuluan, Keelung - [[Port of Keelung|Keelung Harbor]]): An extension of Freeway 3.
** 2G (Toucheng, Yilan)
* [[Provincial Highway 3 (Taiwan)|3]] ([[Taipei]] - [[Pingtung City]])
** 3A ([[Caotun, Nantou]] - [[Nantou City]])
** 3B ([[Daxi District|Daxi]], [[Taoyuan City]] - Shimen Dam
** 3C (Zhushan, Nantou - Jiji, Nantou)
* [[Provincial Highway 4 (Taiwan)|4]] ([[Dayuan District|Dayuan]], [[Taoyuan City]] - [[Shimen Reservoir]])
* [[Provincial Highway 5 (Taiwan)|5]] ([[Taipei]] - [[Keelung City]])
** 5A (Zhangshuwan, New Taipei - Liudu, Keelung)
** ''5B (Xizhi bypass)'': Decommissioned in 2013.
* [[Provincial Highway 6 (Taiwan)|6]] (Houlong, Miaoli - Dahu, Miaoli)
* [[Provincial Highway 7 (Taiwan)|7]] ([[Daxi District]], [[Taoyuan City]] - [[Zhuangwei, Yilan]]): (Northern Cross-Island Highway, 北部橫貫公路)
** 7A (Qilan - Lishan)
** 7B (Sanxia, New Taipei - Fuxing District, Taoyuan)
** 7C (Datong, Yilan - Wujie, Yilan)
** 7D (Shuanglianpi, Yuanshan - Yilan)
* [[Central Cross-Island Highway|8]] ([[Dongshi, Taichung]] - [[Taroko National Park|Taroko]], Hualien) (Central Cross-Island Highway, 中部橫貫公路): This highway was severely damaged between Guguan and Deji by the [[1999 Jiji earthquake]] although the Guguan-Lishan section opened to limited traffic in 2018.
** 8A (Baxin - Deji): This highway was severely damaged in the 1999 Jiji earthquake and has been shut down since.
* [[Provincial Highway 9 (Taiwan)|9]] ([[Taipei]] - Fenggang, Pingtung): The highway runs through the eastern part of [[Taiwan]]. It is the longest highway in Taiwan.
** 9A ([[Xindian District|Xindian]], New Taipei - [[Wulai District|Wulai]], New Taipei)
** 9B (Beinan-Taitung City bypass)
** 9C (Hualien - Shoufeng)
** 9D (Su'ao - Xiulin): old routing of PH 9.
** 9E (Daren - Shizi): old routing of PH 9.
** [[Suhua Highway Improvement Project|Suhua Improve]](Limited-access)
**[[South Link Highway]] Improve(Limited-access)
* [[Provincial Highway 10 (Taiwan)|10]] ([[Taichung Harbor]] - [[Fengyuan District]])
** ''10A (Daya-Shengang-Fengyuan)'': Absorbed into PH 10. 
** 10B (Qingshui - Shalu)
* [[Provincial Highway 11 (Taiwan)|11]] ([[Hualien City]] - [[Taitung City]]): (Hualien-Taitung Coastal Highway)
** 11A (Guangfu - Fengbin)
** 11B (Taitung City)
** 11C (Ji'an - Shoufeng)
* [[Provincial Highway 12 (Taiwan)|12]] ([[Taichung Harbor]] - [[Taichung]])
* [[Provincial Highway 13 (Taiwan)|13]] ([[Xiangshan, Hsinchu]] - [[Fengyuan District]])
** 13A (Zhunan - Miaoli City)
* [[Provincial Highway 14 (Taiwan)|14]] ([[Changhua City]] - Lushan, Nantou)
** 14A (Wushe, Nantou - [[Dayuling]], Hualien)
** 14B (Fenyuan, Changhua - Nantou City)
** 14C (Changhua City alternate)
** 14D (Fenyuan, Changhua - Nantou City)
* [[Provincial Highway 15 (Taiwan)|15]] (Guandu, Taipei - [[Hsinchu City]]): (Xibin Highway, 西濱公路)
** 15A (PH 15 to PH 61 in Dayuan, Taoyuan City)
* [[Provincial Highway 16 (Taiwan)|16]] ([[Mingjian, Nantou]] - [[Xinyi, Nantou]])
* [[Provincial Highway 17 (Taiwan)|17]] (Jianan, Taichung - Shuidiliao, Pingtung): (West Coast Highway)
** 17A ([[Annan District|Annan, Tainan]] - [[Hunei, Kaohsiung]])
** 17B (PH 17 to PH 17A in Annan, Tainan)
* [[Provincial Highway 18 (Taiwan)|18]] ([[Chiayi City]] - Tatajia, Xinyi): New Central Cross-Island Highway (新中橫公路) and Alishan Highway (阿里山公路)
* [[Provincial Highway 19 (Taiwan)|19]] ([[Changhua City]] - [[Tainan]]): Central Highway, (中央公路)
** 19A (Yanshuei, Tainan - Zihguan, Kaohsiung)
* 20 ([[Tainan]] - Haiduan, Taitung): [[Southern Cross-Island Highway]], (南部橫貫公路)
** 20A (Chulai - Chishang)
** 20B (Zuozhen - Nanhua)
* [[Provincial Highway 21 (Taiwan)|21]] (Dongshi, Taichung - Tatajia, Xinyi)
** 21A (ring road around Sun Moon Lake)
* [[Provincial Highway 22 (Taiwan)|22]] ([[Nanzih District|Nanzih, Kaohsiung]] - [[Gaoshu, Pingtung]]): Previously a portion of County Road 188 until 1993.
* [[Provincial Highway 23 (Taiwan)|23]] ([[Fuli, Hualien]] - [[Donghe, Taitung]])
* [[Provincial Highway 24 (Taiwan)|24]] ([[Pingtung City]] - [[Wutai, Pingtung]]), Wutai Highway (霧台公路): Was Highway 22 until 1993. A section in Wutai was severely damaged in 2009 by [[Typhoon Morakot]] and has been shut down since.
* [[Provincial Highway 25 (Taiwan)|25]] ([[Fongshan District]] - [[Linyuan, Kaohsiung]]): Fenglin Highway (鳳林公路)
* [[Provincial Highway 26 (Taiwan)|26]] (Fenggang, Pingtung - Daren, Taitung) Ping-E Highway (屏鵝公路) and Jia-E Highway (佳鵝公路)
* [[Provincial Highway 27 (Taiwan)|27]] (Laonong, Kaohsiung - Wunong, Pingtung)
** 27A (Liouguei to PH 28)
* [[Provincial Highway 28 (Taiwan)|28]] (Hunei, Kaohsiung - Liouguei, Kaohsiung)
* [[Provincial Highway 29 (Taiwan)|29]] (Namasia, Kaohsiung - Linyuan, Kaohsiung) Dalin Highway (達林公路): Was a portion of Highway 21 until 2014.
* [[Provincial Highway 30 (Taiwan)|30]] (Zhuoxi, Hualien - Changbin, Taitung)
* [[Provincial Highway 31 (Taiwan)|31]] (Luzhu, Taoyuan - Xinwu, Taoyuan)
* [[Provincial Highway 37 (Taiwan)|37]] (Xingang, Chiayi - Lucao, Chiayi)
* [[Provincial Highway 39 (Taiwan)|39]] (Xinhua, Tainan - Alian, Kaohsiung)
* [[Provincial Highway 61 (Taiwan)|61B]] (Shengang to national freeway 3, Hemei Interchange)
* [[Provincial Highway 63 (Taiwan)|63A]] (PH 63 to PH 14 in Caotun, Nantou)

==== Quasi Expressways ====
* [[Provincial Highway 63 (Taiwan)|63]] (South District, Taichung - Caotun, Nantou) (Zhongtou Highway, 中投公路)
* [[Provincial Highway 68 (Taiwan)|68A]] (controlled-access) (PH 68 to County Road 123)
* [[Provincial Highway 74 (Taiwan)|74A]] (controlled-access) (PH 74, Kuaiguan IC to PH 1 in Huatan, Changhua)

=== Expressways ===
* [[Provincial Highway 61 (Taiwan)|61]] ([[Bali District]] - [[Cigu District]]) (West Coast Expressway, 西濱快速道路)
** ''61A (PH 15 to Port of Taipei)'': Absorbed into PH 61 in 2020.
* [[Provincial Highway 62 (Taiwan)|62]] (Dawulun, Keelung - Madong, Keelung and [[Ruifang District]] - Ruibin, New Taipei)
** 62A (Keelung Harbor to PH 62, Sijiaoting IC)
* [[Provincial Highway 64 (Taiwan)|64]] (Bali District - [[Zhonghe District]])
* [[Provincial Highway 65 (Taiwan)|65]] ([[Wugu District]] - [[Tucheng District]])
* [[Provincial Highway 66 (Taiwan)|66]] ([[Guanyin District]], [[Taoyuan City]] - [[Daxi District]], [[Taoyuan City]])
* [[Provincial Highway 68 (Taiwan)|68]] (Nanliao, Hsinchu - [[Zhudong, Hsinchu]])
* [[Provincial Highway 72 (Taiwan)|72]] ([[Houlong, Miaoli]] - [[Shitan, Miaoli]])
* [[Provincial Highway 74 (Taiwan)|74]] (PH 3, Kuaiguan IC to PH 3, Wufeng IC)
* [[Provincial Highway 76 (Taiwan)|76]] ([[Puyan, Changhua]] - [[Caotun, Nantou]])
* [[Provincial Highway 78 (Taiwan)|78]] ([[Taixi, Yunlin]] - [[Gukeng, Yunlin]])
* [[Provincial Highway 82 (Taiwan)|82]] ([[Dongshi, Chiayi]] - [[Shuishang, Chiayi]])
* [[Provincial Highway 84 (Taiwan)|84]] ([[Beimen District|Beimen, Tainan]] - [[Yujing, Tainan]])
* [[Provincial Highway 86 (Taiwan)|86]] ([[South District, Tainan]] - [[Guanmiao, Tainan]])
* [[Provincial Highway 88 (Taiwan)|88]] ([[Fongshan District]] - [[Zhutian]])

Since July 1, 2006, the Freeway and Expressway Traffic Control Regulation ({{zh|高速公路及快速公路交通管制規則}}) applies the same traffic rules on the freeways to the expressways, including the same [[#Prohibited traffic|prohibited traffic]] and [[#Following distances|following distances]]. While motorcycles remain generally banned from the expressways, Article 19 of the Freeway and Expressway Traffic Control Regulation makes it officially possible to allow a motorcycle with a cylinder capacity of more than 550&nbsp;cm<sup>3</sup> on certain expressways subject to the following restrictions:
#No sharing the same lane to drive side by side with or to overtake another vehicle, not even another motorcycle
#Headlight on at all times

A trial program to allow a motorcycle with a cylinder capacity of more than 550&nbsp;cm<sup>3</sup> on [[Provincial Highway 68 (Taiwan)|Provincial Highway 68]] and [[Provincial Highway 72 (Taiwan)|Provincial Highway 72]] started in January 2005 for one year and was extended an additional year. On July 2, 2006, more than 1500 Taiwanese motorcyclists took to the streets in [[Taipei]] to demand more open highways; Provincial Highways 68 and 72 were the only Taiwanese expressways open to high-end motorcycles.<ref>{{cite web|url=http://www.taipeitimes.com/News/front/archives/2006/07/03/2003316998|website=Taipei Times|title=1,500 bikers take to the streets to demand open roads|date=July 3, 2006|language=en|author-last1=Wang|author-first1=Flora|url-status=live|archive-url=https://web.archive.org/web/20060822203922/http://www.taipeitimes.com/News/front/archives/2006/07/03/2003316998|archive-date=22 August 2006}}</ref>

Since 2007, a motorcycle with a cylinder capacity of at least 550&nbsp;cm<sup>3</sup> may be driven on expressways but not freeways.<ref>{{cite web|url=http://www.taipeitimes.com/News/taiwan/archives/2007/11/01/2003385728|website=Taipei Times|title=Large-engined bikes take to the nation's expressways|date=November 1, 2007|language=en}}</ref> This major change has resulted in mixed reactions.<ref>{{cite web|url=http://www.taipeitimes.com/News/taiwan/archives/2007/11/04/2003386123|website=Taipei Times|title=Reaction to motorbike rule mixed|date=November 4, 2007|language=en|author-last1=Shan|author-first1=Shelley|url-status=live|archive-url=https://web.archive.org/web/20071229213252/http://www.taipeitimes.com/News/taiwan/archives/2007/11/04/2003386123|archive-date=29 December 2007}}</ref>

== County and city Highways ==
{{Main|List of county and city highways in Taiwan}}
[[Image:Taiwan road sign Art090.1.png|left|75px|Taiwanese Guide Sign G3: County and City Route]]
[[Image:TaiwanCountyRoad120.JPG|150px|Taiwan County Road No. 120]]
[[Image:TaiwanCountyRoad123.jpg|84px|Taiwan County Road No. 123]]

County and city highways are numbered from 101 to 205 since the numbered highways in [[Penghu]] (Pescadores) are incorporated into the system. Including those branch lines, there are totally 147 county and city highways, and the total length stretches over 3,500 kilometres. The lowest number 101 is in New Taipei City. The route numbers generally increase moving north to south. Route No. 200 is in Pingtung. Routes No. 201 to 205 are in Penghu. County highways numbered 179, 184, 195 are nonexistent.

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== Township and District Roads ==
[[Image:Taiwan road sign Art090.2.png|left|75px|Taiwanese Guide Sign G4: Township and District Route]]
[[Image:TaiwanTownshipRoad21.jpg|84px|Hsinchu Township Road No. 21]]
[[Image:TaiwanTownshipRoad23.jpg|150px|Hsinchu Township Road No. 23]]

A Township or District Road is prefixed the abbreviation of the county or city in a Chinese character where it is located. For example, the sample signs above show Hsinchu Roads No. 22, 21, and 23.
These roads are almost always two-lane undivided roads, especially if not carrying two highways in one roadway. In some cases, they may weave through urban neighbourhoods and are treated like lanes or alleys.

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== Special Roads ==
Special Roads in Taiwan are rarely used and appear in certain places.
{{Expand section|date=February 2024}}

== See also ==
{{portal|Roads|Taiwan}}
* [[Transportation in Taiwan]]
{{-}}

==Notes==
{{reflist|group=nb}}

== References ==
<references />

== External links ==
* [http://www.freeway.gov.tw/English/ National Freeway Bureau]
* [http://www.thb.gov.tw/sites/en/ Directorate General of Highways]
* [http://gip.taneeb.gov.tw/dp.asp?mp=6 Taiwan Area National Expressway Engineering Bureau]{{dead link|date=April 2025}}

{{Motorways in Asia}}
{{Transport in Taiwan}}

[[Category:Highways in Taiwan| ]]