Provincial Highway 18 (Taiwan)

Taiwan Provincial Highway No. 18 is a highway between Taibao in Chiayi County to Provincial Highway No. 21 at Tatajia (Tataka) in Yushan National Park. It is also called the New Central Cross-Island Highway(新中橫公路) and Alishan Highway(阿里山公路). The highway connects Chiayi City and the rest of Western Taiwan to Alishan National Scenic Area and Yushan National Park. The overall length of the highway is 108.559 km.[1]

Provincial Highway 18 shield}}
Provincial Highway 18
台18線
Alishan Highway
Route information
Maintained by Directorate General of Highways
Length108.559 km (67.455 mi)
Major junctions
West endTaibao, Chiayi
Major intersections Nat 3 in Zhongpu, Chiayi
East end Prov 21 in Xinyi, Nantou
Location
CountryTaiwan
Highway system
← Prov 17→ Prov 19

Route description

The highway begins in front of Chiayi HSR station in Taibao City as HSR Avenue, which connects the station with downtown Chiayi City. The highway continues eastbound as it leaves Chiayi City for Alishan. In Zhongpu the highway has a junction with Freeway 3. The road then passes through Fanlu and Zhuqi before reaching Alishan Township, home to the popular tourist destination of Alishan National Scenic Area and Alishan Forest Railway. The highway then continues eastbound through the Alishan mountains and enters Yushan National Park, before ending at the junction of PH 21 in Tatajia, located near the foot of Yushan, the highest mountain in Taiwan.

The highway was initially planned to extend to Yuli, Hualien as a part of the New Central Cross-Island Highway. Due to environmental concerns, however, most of the segment extending from Tatajia to Hualien was never built. In 2006, the plan was formally abandoned. The only segment that was completed, between Zhuoxi, Hualien and Yuli, was merged into PH 30 as of 2007.

References
  1. 公路總局 (25 July 2018). "省道公路路線". www.thb.gov.tw. Retrieved 22 August 2018.
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