National Route 20 (
National Route 20 | ||||
---|---|---|---|---|
Route information | ||||
Length | 225.0 km[1] (139.8 mi) | |||
Existed | 4 December 1952–present | |||
Major junctions | ||||
South end | National Route 1 / National Route 4 / National Route 6 / National Route 14 / National Route 15 / National Route 17 in Nihonbashi, Chūō, Tokyo | |||
North end | National Route 19 / National Route 153 in Shiojiri, Nagano | |||
Location | ||||
Country | Japan | |||
Major cities | Hachiōji Kofu | |||
Highway system | ||||
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National Route 20 is the successor to the Kōshū Kaidō, an Edo period highway connecting the shogunal capital of Edo and Kofu, then the principal city in Kai Province (or Kōshū, as it was also known). Parts of it still bear the old name.
The highway's course passes the Sakurada Gate of the Tokyo Imperial Palace. Shinjuku Station is on National Route 20. The marathon course of the Tokyo Olympics included parts of National Route 20.
History
edit- 4 December 1952 - First Class National Highway 20 (from Tokyo to Shiojiri, Nagano)
- 1 April 1965 - General National Highway 20 (from Tokyo to Shiojiri, Nagano)
Overlapping sections
edit- From Nihonbashi to Chiyoda (Sakuradamon intersection): Route 1
- In Hachioji, from Yokamachi intersection to Hachimancho intersection: Route 16
- In Otsuki, from intersection to Otsuki-bashi east intersection: Route 139
- From Kai (Ryuo-rittai intersection) to Nirasaki (Funayama-bashi kita intersection): Route 52
Intersects with
editThis article contains a bulleted list or table of intersections which should be presented in a properly formatted junction table.(November 2021) |
- Tokyo
- Kanagawa Prefecture
- Route 412 and Sagamiko-Higashi Exit, Chuo Expressway; at Sagamihara
- Sagamiko IC, Chuo Expressway at Sagamihara
- Yamanashi Prefecture
- Nagano Prefecture
References
edit- ^ "
一般 国道 の路線 別 、都道府県 別 道路 現況 " [Road statistics by General National Highway route and prefecture] (PDF) (in Japanese). Ministry of Land, Infrastructure, Transport and Tourism. Retrieved 19 February 2020. - ^
一般 国道 20号 (in Japanese). Ministry of Land, Infrastructure, Transport and Tourism. Kanto Regional Development Bureau. Archived from the original on 19 December 2010. Retrieved 29 November 2010.