The latest regulatory information isDraTraPlease see.

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NEXCO EAST Kazo Management Office (Kazo City, Saitama Prefecture) is carrying out pavement repair work at the Kawajima Interchange (hereinafter referred to as ``IC'') on the C4 Ken-o Expressway (hereinafter referred to as ``Ken Ken-O Road''). In order to do so, lights will be closed at night.
We apologize for any inconvenience this may cause to our customers, but we ask for your understanding and cooperation so that you have plenty of time to spare when you go out.

1. Closed location and date and time

1. Closed location:
   The following lamps of Ken-O Road IC

number	Road name	Closed point	period	Attachment
①	C4 Ken-O Road	[Kawashima IC] From the inner loop (towards Tsukuba) draining exit lamp	November 20th (Monday) 9pm to 5am the next morning	Document 1 [PDF: 195KB]
②		[Kawashima IC] To the outer loop (towards Tsukuba) inflow entrance ramp	November 21st (Tuesday) 9pm to 5am the next morning	Material 2 [PDF: 195KB]




• Attached to each line C4 The indications such as indicate the route number (numbering) of Expressway.
• In case of inclement weather, the event will be postponed to an alternate date.
  Please see the attached document [PDF: 289KB] for backup dates and detours in case of postponement.
• The decision to carry out construction will be announced on X (formerly Twitter) etc. around 5:00 pm on the day of construction.
2. Date and time
   Implementation date:

   November 20th (Monday) and 21st (Tuesday), 2020

   From 21:00 pm each day to 5:00 pm the next morning

   Preparation day:

   November 22nd (Wednesday), 24th (Friday), 27th (Monday), 28th (Tuesday), 2020

   From 21:00 pm each day to 5:00 pm the next morning

2. Construction overview

Pavement repair work will be carried out due to damage to the road surface such as steps at the entrance/exit ramp of Ken-O Road.
As the construction work cannot be carried out under normal lane restrictions, it is necessary to close the ramp. Therefore, in order to minimize the inconvenience to customers, the ramp will be closed on weekday nights when traffic is light, and construction will be carried out intensively and efficiently. This work is necessary to ensure safe and comfortable use Expressway, so we ask for your understanding and cooperation.

3. How to obtain traffic information

(1) Guidance by distribution / posting

• Notice signs, posters and leaflets will be posted at toll booths and rest facilities nearby.
• A banner will be posted on the overpass on the Expressway.

(2) Road traffic information that can be obtained before going out

• 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 Traffic Information Site "DraTra"
  Real-time information

  [PC] https://www.drivetraffic.jp/

  [Mobile] http://m.drivetraffic.jp/

  Construction regulation information

  [PC] 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。
  全国・関東甲信越情報　050-3369-6600
  埼玉情報　050-3369-6611
  【PC】https://www.jartic.or.jp/

(3) Road traffic information available while using the Expressway

• Road information board
• Highway radio (AM1620kHz)
  The highway radio section is indicated by signs on the Expressway.
• Highway Information Terminal
  We will inform you of road information in an easy-to-understand manner by the monitor screens installed in SA / PA.
• VICS
  You can get road traffic information with VICS-compatible car navigation and other on-board devices.

• Information is also distributed on official X (formerly Twitter) and LINE accounts.
  [X (old Twitter)]
  "NEXCO EAST (Kanto)" (@e_nexco_kanto) Real-time traffic information
  “NEXCO EAST (Kanto Construction Regulations)” (@e_nexco_kanto_k) Decision to implement construction regulations
  [LINE]
  "NEXCO EAST" (@e-nexco) Road closures and weather information