The latest regulatory information isDraTraPlease see.

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NEXCO EAST Aomori Management Office (Aomori City, Aomori Prefecture) will be implementing continuous lane restrictions day and night on the E4 Tohoku Expressway (hereinafter referred to as the "Tohoku Expressway") from Towada Interchange (hereinafter referred to as the "IC") to Kosaka IC in order to carry out cut slope reinforcement work.
Please obey the speed limit, maintain a safe distance from the vehicle in front, and take sufficient care to avoid rear-end collisions. We apologize for the inconvenience this will cause our customers, but this construction is necessary to ensure safe and secure use of Expressway, so we ask for your understanding and cooperation.

1. Day and night continuous lane restriction sections and dates

1. Day and night continuous lane restriction areas:
   Tohoku Expressway Expressway Out-bound Towada IC ⇒ Kosaka IC



• Attached to each line E4 The indications such as indicate the route number (numbering) of Expressway.
2. Date and time
   Date of implementation (1st session):

   April 1st (Wednesday) - April 24th (Friday), 2020

   Date of implementation (2nd session):

   Thursday, May 7, 2020 - Wednesday, August 5, 2020

   Date of implementation (3rd time):

   Monday, August 17, 2020 - Friday, September 18, 2020

   Implementation date (4th time):

   Thursday, September 24, 2020 - Friday, October 30, 2020

















3. Lane operation change construction details
   Lane operation change due to cut slope reinforcement work

Wednesday, April 1, 2020 - Friday, April 24, 2020
Thursday, May 7, 2020 - Wednesday, August 5, 2020
Monday, August 17, 2020 - Friday, September 18, 2020
Thursday, September 24, 2020 - Friday, October 30, 2020

• Lane switching will be carried out as follows:
  Lane operation will be switched from ① to ② on Wednesday, April 1, 2026.
  Lane operation will be switched from ① to ② on Thursday, May 7, 2026.
  Lane operation will be switched from ① to ② on Monday, August 17, 2026.
  Lane operation will be switched from ① to ② on Thursday, September 24th, 2026.

2. Construction overview

Ground anchor construction work will be carried out to reinforce the cut slope of Tohoku Expressway between Towada IC and Kosaka IC on Tohoku Expressway Out-bound lane. The work will be carried out in a concentrated and efficient manner to minimize inconvenience to customers. This work is necessary to ensure safe and comfortable use of Expressway, so we ask for your understanding and cooperation.

3. Requests when using

1. We do not anticipate any traffic congestion, but if you are planning to use this section, please check the latest road traffic information and allow yourself plenty of time.
2. As the lanes are narrowing, please observe the speed limit, maintain a safe distance between vehicles, and exercise caution to avoid rear-end collisions. Also, as the lanes change significantly before and after the restricted area, please follow local guide signs and other signs when passing through.
3. Please be aware that construction vehicles will be entering and exiting the area surrounding the construction site, so please be mindful of what is ahead.

4. How to obtain information about Expressway

(1) Guidance by distribution / posting

• Posters and digital signage will be displayed at nearby toll booths and rest facilities.

(2) Expressway information available before you leave

• NEXCO東日本お客さまセンター（24時間オペレーターが対応）
  ナビダイヤル：0570-024-024
  または：03-5308-2424
• NEXCO EAST Expressway Information Site "DraTra"
  Real-time information

  https://www.drivetraffic.jp/

  Construction regulation information

  https://www.drivetraffic.jp/construction-regulation
• 日本道路交通情報センター（JARTIC）道路交通情報
  全国共通ダイヤル　050-3369-6666
  （携帯電話短縮ダイヤル　#8011）
  ※全国どこからでも最寄りの情報センターに接続します。
  東北地方高速情報　050-3369-6761
  青森情報　050-3369-6602
  秋田情報　050-3369-6605
  【アドレス】https://www.jartic.or.jp/
• LINE official account "NEXCO EAST"
  We provide information about Expressway under the jurisdiction of NEXCO EAST.

  

(3) Expressway information available while using Expressway

• Road information board
• Highway radio (AM1620kHz)
  Highway radio sections are indicated by signs on the Expressway.
• VICS
  Road information can be obtained from devices equipped with VICS-compatible car navigation systems.

• The official account of X (formerly Twitter) also provides information about Expressway.
  "NEXCO EAST (Tohoku)" (@e_nexco_tohoku)

Expressway renewal project
Now, safety and security to the next generation.
In order to deliver safety and security to everyone, NEXCO EAST will work on large-scale renewal and repair projects for Expressway.
Or search for "Fast Renewal".

NEXCO EAST Group has positioned the period from fiscal 2021 to fiscal 2025 as a period for contributing to the achievement of the SDGs and transforming towards a new future society, and is undertaking a variety of initiatives.
We believe that this "renovation construction" initiative will contribute to SDGs goals 8, 9, and 11 as a business activity that leads to the development of safe, secure, and reliable infrastructure.

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