• PDF version [PDF: 441KB]

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.

The wire ropes ^(*1) being trial installed this time were confirmed to be safe in the provisional two-lane section in a large vehicle collision test ^(*2) conducted on March 8, 2017, at the Tomakomai Cold Region Test Road of the Civil Engineering Research Institute for Cold Region.

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. Construction period
   Ten nights between Monday, May 22nd and Tuesday, June 6th, 2017, excluding Friday, Saturday and Sunday
   Nighttime road closures will be implemented from 8:00 PM to 6:00 AM the following morning (backup days: Wednesday, June 7th and Thursday, June 8th)
2. Construction section/installation extension
   Approximately 5km between Yubari IC and Shimukappu IC Doto Expressway
3. Construction details
   Construction work to install wire ropes in place of rubber poles and curbs to separate the inbound and outbound lanes of the temporary two-lane section

2. Reference

1. Overview and results of the collision test
   (Open to the public on March 8, 2017 at the Tomakomai Cold Region Test Road of the Civil Engineering Research Institute for Cold Region)
   • Test conditions: Tested with a large vehicle (20t), collision speed of 52km/h, collision angle of 6 degrees, tension of 5kN
   • Experimental results: We were able to confirm the function of preventing the vehicle from protruding to the oncoming lane.

   

2. Wire rope trial installation section
   From the press release dated March 1, 2017, "Temporary two-lane Expressway: Wire rope trial installation section"

   

   • The extension may be increased or decreased depending on on-site inspections.