Provincial Highway 31 (Taiwan)

80px Provincial Highway 31
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Route information
	Maintained by Directorate General of Highways
Length:	17.876 km (11.108 mi)
Major junctions
North end:	PH 4 in Luzhu
	Fwy. 2 in Luzhu
South end:	PH 66 in Xinwu
Highway system

Provincial Highway 31 (Chinese: 台31線) is a 17.876-kilometre-long (11.108-mile) provincial highway in Taoyuan City, Taiwan. An elevated section of the Taiwan High Speed Rail 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.

Major intersections

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