Measures to prevent frontal collision accidents in a temporary two-lane section on wire rope installation work
～Begin the Doto Expressway of the trial section in Hokkaido～
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- Measures to prevent frontal collision accidents in a temporary two-lane section on wire rope installation work
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.
For the wire rope (* 1) tried and installed this time, in the collision experiment (* 2) of a large-scale vehicle carried out on the Tomakomai cold district test road of the Civil Engineering Research Institute on March 8, 2017, the provisional two lane section We have confirmed the safety performance at.
- 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.
- March 1, 2017 Press release "On-site release of wire rope collision experiments and accident response training"
1 This construction plan
(1) Construction period
Of May 22 (Mon) - 6 June (Tue) 2017, except for Friday, Saturday and Sunday
We carry out by night closure from 20:00 to 6:00 the next morning (preliminary days June 7 (Wed), 8 (Thurs))
(2) Construction section/extension of installation
Doto Expressway Yubari IC ~ Shimukappu IC between about 5km
(3) Construction content
Construction to install a wire rope instead of a rubber pole and curb separating the upper and lower lines of the temporary two-lane section
2 Reference
(1) Outline and results of collision experiment
(Published on March 8, 2017 on the Tomakomai cold test road on the Civil Engineering Research Institute)
- Test conditions: Large vehicle (20t), collision speed 52km/h, collision angle 6 degrees, tension 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
Press announcement on March 1, 2017 "From the provisional two-lane expressway: About the wire rope trial installation section"
*The extension may increase or decrease depending on the on-site inspection.
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