The latest regulatory information isDraTraPlease see.

• PDF version [PDF: 977KB]

NEXCO EAST Ichihara management office (Ichihara City, Chiba Prefecture), Tokyo Wan Aqua-Line Expressway Management Office (Kisarazu, Chiba), Kisarazu Construction Office (Kisarazu, Chiba) is, C4 Ken-o Expressway (hereinafter referred to as "Ken-O Road Expressway") Between the Mobara Kita Interchange (hereinafter "IC") and Kisarazu Higashi IC, the road is closed at night to repair the pavement damaged by typhoons, dispose of fallen trees, and construct the Mobara Nagara Smart Interchange (hereinafter "SIC"). Will be carried out.
We apologize for the inconvenience caused to our customers, but we ask for your understanding and cooperation so that you will have time to spare when you go out.

1 closed section and date and time

(1) Closed section
Ken-O Road O Expressway Mobara North IC-Kisarazu East IC

* Attached to each line C4 The indications such as indicate the route number (numbering) of Expressway.

(2) Date and time
Implementation date: November 25th (Monday) to November 29th (Friday), the first 2019
Preliminary day: December 2nd (Monday) to December 6th (Friday), 1st 2019

2 Detour

Please refer to [Attachment-1] [PDF: 167KB] for detours.​
The detour will take longer, so please leave plenty of time.

3 Transfer adjustments due to suspension of traffic

For passengers who temporarily flow out of the Expressway due to suspension of traffic, bypass the suspension section, re-inflow and transfer in the forward direction, we carry out "transit adjustment" to adjust the toll according to the section used. I will. ( [Attachment-2] [PDF: 241KB] reference)

• Transfer designated IC

How to use transit adjustment

<< ETC customers >>

• Customers using ETC are requested to run the outflow designated IC wirelessly and the re-inflow designated IC wirelessly.
  (No transit certificate will be issued for ETC vehicles)
• ETC time zone discount will be applied, considering the transited journey as one.
  Toll charges are adjusted at the time of billing, so they may differ from those displayed at the toll gate.

<< Customers for cash, etc. >>

• Customers who pay by cash, etc. should receive the "passage certificate" at the outflow designated IC, and then get the "passport" at the re-inflow designated IC, and then make the "transfer" at the toll booth that pays the fare first. Please give us your "certificate" and "passport".

4 Construction overview

Ken-O Road At Mobara Kita IC-Kisarazu Higashi IC, we will carry out repair work on damaged pavement, repair and inspection of road structures, and Mobara Nagara SIC construction work. The section is a two-lane section (one lane on each side), and it is necessary to close the road when carrying out the construction because it cannot be constructed under normal lane regulations. Therefore, in order to avoid inconvenience to customers as much as possible, we will close traffic on weekday nights when traffic is light and carry out construction work intensively and efficiently.
This work is necessary to use Expressway safely and comfortably, so we ask for your understanding and cooperation.

5 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TEL：03-5338-7524
• NEXCO EAST Expressway Traffic Information Site "DraTra "
  [PC]
  [Mobile] http://m.drivetraffic.jp/
• NEXCO EAST website "Construction regulation information"
  From the "Expressway users" tag " Construction regulation information Please select and see.
• 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
  千葉情報　050-3369-6612
  【PC】
• ハイウェイテレホン（5分毎に更新される最新情報を24時間提供）
  千葉局　043-257-1620
  （携帯電話・PHS短縮ダイヤル　#8162）

(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.

* Twitter's official account "NEXCO EAST (Kanto)" (@e_nexco_kanto ) Also distributes information.