Work begins in Hokkaido to install wire ropes to prevent head-on collisions on temporary two-lane sections

~The trial will begin on Doto Expressway one of the Hokkaido trial sections~

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  • Press Release Hokkaido office
  • Work begins in Hokkaido to install wire ropes to prevent head-on collisions on temporary two-lane sections

May 16, 2017
East Nippon Expressway Co., Ltd.
Hokkaido office

NEXCO EAST Hokkaido Branch (Sapporo City Atsubetsu-ku) was the first installment in the province in the trial installation section announced in the press release "March 2nd lane highway: About wire rope trial installation section" announced on March 1, We will inform you that the section to undertake construction has become "Dobuto Expressway Yubari IC - Shimano IC".

The actual number of construction days is planned to be 10 nights, and it will be completed in about 3 weeks in consideration of weather conditions.

Regarding the remaining installation section, the Do-O Expressway we are currently preparing for the construction work.

 なお、今回試行設置するワイヤロープ(※1)については、平成29年3月8日に寒地土木研究所苫小牧寒地試験道路で実施した大型車両の衝突実験(※2)において、暫定二車線区間での安全性能が確認されております。

  1. It replaces the rubber pole installed in the median strip of the temporary two-lane section of the Expressway, and has improved the ability to prevent the vehicle from protruding into the oncoming lane.
  2. Press release on March 1, 2017: "Opening of the Wire Rope Collision Test and Accident Response Training Site"

1. Current construction plan

  1. 工事期間
    平成29年5月22日(月)~6月6日(火)のうち、金・土・日を除く10夜間
    20時~翌朝6時の夜間通行止めで実施(予備日6月7日(水)、8日(木))
  2. 工事区間・設置延長
    道東自動車道 夕張IC~占冠IC間 約5km
  3. 工事内容
    暫定二車線区間の上下線を区分するラバーポールと縁石に代わりワイヤロープを設置する工事
Image of rubber pole and curb
Rubber pole and curb
Image of wire rope
Wire rope

2. Reference

  1. 衝突実験の概要・結果
    (平成29年3月8日に寒地土木研究所苫小牧寒地試験道路で公開実施)
    • 試験条件:大型車(20t)、衝突速度52km/h、衝突角度6度、張力5kNにて実験
    • Experimental results: We were able to confirm the function of preventing the vehicle from protruding to the oncoming lane.
    Image of collision experiment
  2. ワイヤロープ試行設置区間について
    平成29年3月1日付記者発表「暫定二車線の高速道路:ワイヤロープ試行設置区間について」より
    Image of the wire rope trial installation section
    • 現地精査により延長は増減することがあります。
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