Western Trunk line

{{Short description|Railway line in Taiwan}}

{{Infobox rail line

| name = Western Trunk line

| color = 063391

| native_name = 西部幹線

| native_name_lang = zh-tw

| image = 300px

| caption = Western Trunk line in blue

| type = Conventional railway

| start = {{stl|Taiwan Railways|Keelung}}

| end = {{stl|Taiwan Railways|Pingtung}}

| stations = 134

| open = 10 August 1902

| operator = Taiwan Railway Corporation

| tracks = 2 (predominantly)

| gauge = {{RailGauge|3ft6in|lk=on}}

| linelength = {{Convert|420.8|km|abbr=on}}{{efn|Keelung to Pingtung via {{stl|Taiwan Railways|Taichung}}}}

| electrification = 25 kV/60 Hz catenary

| speed = 150 km/h (93mph)

| map_state = collapsed

| map = {{Western Trunk line RDT}}

}}

Western Trunk line ({{zh|t=縱貫線|p=Zòngguàn xiàn|poj=Chhiòng-koàn sòaⁿ}}) is a railway line of Taiwan Railway in western Taiwan.{{cite web|title=About TRA|url=http://www.railway.gov.tw/en/CP.aspx?sn=16989&n=19586|website=Taiwan Railways Administration.MOC|access-date=1 March 2017|language=en|date=December 11, 2008}}{{cite web|title=Statistics|url=http://www.railway.gov.tw/tw/CP.aspx?sn=7460&n=6886|website=交通部臺灣鐵路管理局|access-date=1 March 2017|language=zh|date=December 11, 2008}} It is by far the busiest line, having served over 171 million passengers in 2016. The total length of the line is {{Cvt|404.5|km}}.

The line is an official classification of physical tracks and does not correspond to particular services. It is connected to Taichung line (mountain line; {{lang|zh-tw|山線}}) at Zhunan and Changhua. Many services turn inland to take the Taichung route, then reconnect back to the main line (West Coast line). Train schedules and departure boards mark either mountain or coastal ({{lang|zh-tw|海線}}) line to indicate the route taken.