Provincial Highway 31 (Taiwan)

Provincial Highway 31 (Chinese: 台31線) is a 30.036-kilometre-long (18.664-mile) provincial highway in Taoyuan City, Taiwan. An elevated section of the Taiwan High Speed Rail viaduct and under-tunnel acts as a median for most of the highway, except when the highway is near THSR Taoyuan Station and when the highway is near and on its southern terminus.^[2] The highway serves the THSR Taoyuan Station.

Provincial Highway 31
台31線
Route information
Maintained by Directorate General of Highways
Length	30.036 km[1] (18.664 mi)
Major junctions
North end	Prov 4 in Luzhu
Major intersections	Nat 2 in Luzhu
South end	Prov 66 in Xinwu
Location
Country	Taiwan
Highway system
Highway system in Taiwan
← Prov 30 → Prov 37

Major intersections

County	Location	km[2]	mi	Destinations	Notes
Luzhu	0.0	0.0	Prov 4 (Nankan Road) to Nat 1 – Zhuwei, Taoyuan District
	0.75	0.47	TR 15 (Fuguo Road) – Shuiwei, Zhuwei, Taoyuan District
	2.1	1.3	TR 19 (Fuhua Road) – Dahua, Luzhu Village
	4.8	3.0	Nat 2 – Taoyuan International Airport, Taoyuan District	Exit 5 (Dazhu Interchange) on Fwy. 2
	4.8	3.0	Cty 110 (Xinsheng Road) – Dayuan, Dazhu	Northbound exit and southbound entrance
Dayuan	5.7	3.5	Cty 110A (Zhongzheng East Road) to Nat 1 – Zhongli, Dayuan
Zhongli	8.8	5.5	Cty 113C north (Qingpu Road) – THSR Taoyuan Station	North end of CR 113C concurrency
	9.3	5.8	Cty 113C south (Xinsheng Road) – Zhongli	South end of CR 113C concurrency
	10.6	6.6	Cty 113 – Central Zhongli, Dayuan
	11.8	7.3	TR 43-1 (Shengde Road) – Zhongli, Dayuan
	12.9	8.0	Cty 112 (Zhongzheng Road) – Zhongli, Guanyin
Zhongli–Xinwu border	16.5	10.3	Cty 114 (Minzu Road) to Nat 1
Xinwu	17.9	11.1	Prov 66 to Nat 1 – Pingzhen, Daxi, Guanyin	At-grade intersection
1.000 mi = 1.609 km; 1.000 km = 0.621 mi       Concurrency terminus       Incomplete access