Editing Highway system in Taiwan (section)

==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 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>