【E18】上信越自動車道（信濃町IC～上越JCT間）の約8割が
12月7日（金）に4車線となります
-Arai PA / Smart IC to Joetsu JCT are all 4 lanes-
- Corporate Top
- Press Room
- Press Release Niigata office
- [E18] About 80% of the Joshin-Etsu Expressway (between Shinanomachi IC and Joetsu JCT) will have four lanes on Friday, December 7
November 27, 2018
East Nippon Expressway Co., Ltd.
Niigata Regional Head Office
NEXCO EAST Niigata Regional Head Office (Chuo-ku, Niigata City) E18 Regarding the four-lane conversion work that was carried out between the Shinanomachi IC on the Joshin-Etsu Expressway and the Joetsu JCT (37.5 km), a new 4 lane operation for 15.9 km started around 3:00 pm on Friday, December 7 I will. With the start of this operation, about 80% (28.7 km) of this section will be 4 lanes, including the extension of 12.8 km already installed with additional lanes.
The start date and time for 4-lane operation may change depending on the weather.
The remaining 20% (8.8 km) will be completed within 2019 (FY2019), and Joshin-Etsu Expressway will be converted into four lanes when the same section is completed.
We will continue to proceed with the construction while paying close attention to safety measures, and we appreciate your understanding and cooperation.
Location map
Schematic of 4-lane operation start section
Joshin-Etsu Expressway From the Shinanomachi IC to Joetsu JCT (37.5km) 4-lane construction section, 4-lane operation will start in the following sections around 3:00 pm on Friday, December 7th.
- 信濃町IC～妙高高原IC間（5.1kmのうち3.2km）*一部区間4車線化
- 妙高高原IC～中郷IC間（12.0kmのうち9.5km）*一部区間4車線化
- 中郷IC～新井PA・SIC間（7.4kmのうち3.0km）*一部区間4車線化
- 新井PA・SIC～上越高田IC間（7.1km）*完全4車線化
- Between Joetsutakada IC and Joetsu JCT (5.9km) * Full 4 lanes
これにより、信濃町IC～上越JCTの区間延長（37.5km）のうち、約8割（28.7km）が4車線となります。今回の4車線運用開始により、新井PA・スマートICから上越JCT間（13.0km）が全て4車線となります。なお、4車線運用開始日時は、天候等により前後する場合がございますので、ご了承ください。
The remaining 20% (8.8km) will be completed within 2019 (2019).
Passengers are requested to continue to cooperate with safe driving in accordance with local traffic regulations.
上信越自動車道 4車線化事業区間の概要
- 道路名：E18上信越自動車道
- 4車線化：信濃町IC（長野県上水内郡信濃町大字野尻）
事業区間～上越JCT（新潟県上越市大字中屋敷） - 区間延長：37.5km（4車線化工事延長：24.7km）
- E18上信越自動車道は、E17関越自動車道 藤岡JCTから群馬県南部、長野県北部、新潟県西部を経て上越JCTでE8北陸自動車道へ接続する、延長約203kmの高速道路です。
- Of this, only 37.5km between Shinanomachi IC and Joetsu JCT is a provisional 2-lane section, and NEXCO EAST Niigata Regional Head Office (Chuo-ku, Niigata City) is working on 4-lane construction for this section.
- This section passes through one of Japan's leading heavy snowfall areas, and it has a steep slope where the elevation rises from 40m on the Sea of Japan side (near Joetsu JCT) to 680m on the Nagano side (near Shinanomachi IC). It has become.
上信越自動車道4車線化による効果 ◆重大事故の減少
- 平成11年の上信越自動車道全線開通以降に、暫定2車線区間の簡易中央分離帯（ラバーポール等）を突破し、反対車線に飛び出す事故が70件発生しており、うち死亡事故が13件発生しています。（平成30年9月末現在）
4車線化により中央分離帯に防護柵が設置されるため、このような重大事故が減少します。
上信越自動車道4車線化による効果 ◆渋滞の緩和
- Congestion due to traffic concentration that has occurred in places where the slope of the road changes, lanes decrease, etc. will be reduced by changing to 4 lanes (increasing lanes).
上信越自動車道4車線化による効果 ◆円滑な交通の確保
- The number of road closures can be reduced because it is possible to perform traffic accident restoration work and road maintenance and repair work, which had previously been forced to work with road closures, by lane regulations.
- Over the past 10 years (FY19-H29), 55 events have occurred where large vehicles cannot climb the hill and block the lane due to snow, etc. This makes it possible to avoid vehicles that cannot climb uphill in such cases.
上信越自動車道4車線化による効果 ◆災害時における早期の交通機能の確保
- Since it is possible to carry out restoration work in parallel while securing a traffic zone, it will be possible to restore the road early and it will be possible to pass emergency vehicles and transport goods quickly.
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