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お盆期間の高速道路等の渋滞予測と対策について 【首都圏版】

Prediction of traffic congestion and countermeasures on Expressway etc. during the Bon Festival 【Tokyo metropolitan area version】

~ To avoid traffic congestion, please avoid using traffic jam ~

~ To avoid traffic congestion, please avoid using traffic jam ~

2019 July 10
East Nippon Expressway Co., Ltd. Kanto Regional Head Office
Central Japan Expressway Tokyo, Inc. Regional Head Office
Central Japan Expressway Hachioji Corporation Regional Head Office

East Nippon Expressway Co., Ltd. (hereinafter NEXCO EAST ) Kanto Regional Head Office and Chuo Nippon Expressway Co., Ltd. (hereinafter NEXCO CENTRAL ) Tokyo Regional Head Office and Hachioji Regional Head Office are located in Expressway Kanto Koshin region and Shizuoka prefectureObon period [2019 11 days from August 8 (Thu) to August 18 (Sun)]We are pleased to announce the trends and countermeasures of congestion prediction (traffic concentration concentration of 10 km or more) and other measures.

Please refer to this traffic congestion forecast to avoid peak traffic jams, adjust the departure time and use it for making travel plans. Although this forecast is based on traffic congestion results in the past Obon Festival period and recent traffic conditions, actual traffic congestion situation may differ from forecasts due to accidents, weather conditions, etc. Therefore, Please check the traffic information.

In addition, Expressway company companies provide traffic prediction information and road traffic information with various tools. Please use by all means when using Expressway .

After confirming the contents of the delinquency forecast,Change the date and time of useWe get it,Avoiding traffic jamsThank you.

Traffic jam in the Out-bound directionin the morningEspecially in theAugust 10 (Sat)-11 (Sun)To

Congestion in the In-bound directioneveningEspecially in theAugust 12 (Mon)-15 (Thu)に 、渋滞が多発する見込みです。

A day / time zone with relatively few traffic jamsPlease consider using it at

※ For detailed traffic congestion forecast, please check the official website and various tools of each Expressway company

1 About congestion prediction

(1) Number of congestion times of 10 km or more
  • Out-bound (towards ※ 1 · to the east ※ 2) direction
  • In-bound (towards ※ 1 · to the west ※ 2)
  • 1: Regarding the number of traffic jams that are predicted on the C3 Gaikan Expressway , the direction toward clockwise TCT (clockwise) is defined as "outward direction", and the direction toward Oizumi JCT (counterclockwise) as "inward direction", The C4 Ken-o Expressway has a direction (clockwise) toward Daiei JCT as the "outward direction" and a direction toward Chigasaki JCT (counterclockwise) as the "inward direction."
  • 2: Regarding the number of traffic jams predicted by the E50 Kita-Kanto Expressway , the direction heading to Mito Minami IC is referred to as the “East Approach Plane”, and the direction toward Takasaki JCT as the “West Approach Plane”.
(2) Forecasting especially long traffic jams (more than 35 km)
Direction Peak hour
Month, Day and the weekday
Road name Top of traffic jam
(location)
Time zone Peak time Peak hour
Traffic length



going down


8/10 Saturday E1
Tomei Expressway
Hatano Nakai IC
near
Chino City, Kanagawa Prefecture
(Hadonoshi)
18:00 before
~
16:00
Six o'clock 40km
8/10 Saturday E4
東北自動車道
Yaita Kita (Yaitakita) PA
near
Yotsuba-shi, Tochigi ken
(I do)
0:00
~
16:00
7 o'clock 35km
8/10 Saturday E17
関越自動車道
Higashi Matsuyama IC
near
Saigama-ken Higashimatsuyama-shi
(Higashimajimashi)
4: 00
~
13:00
7 o'clock 35km
8/10 Saturday E20
ChuoExpressway
Sagami Lake IC
near
Kanagawa Prefecture Sagamihara-shi
(Sagamatara)
4: 00
~
16:00
5 o'clock 40km
August 11th E4
東北自動車道
Kazo (Kazo) IC
near
Saitama ken city
(Kozushi)
6:00
~
14:00
9 o'clock 35km
August 11th E17
関越自動車道
Higashi Matsuyama IC
near
Saitama Prefecture Higashi Matsuyama City
(Higashimajimashi)
5:00
~
15:00
8 o'clock 40km
August 11th E20
ChuoExpressway
Sagami Lake IC
near
Kanagawa Prefecture Sagamihara-shi
(Sagamatara)
5:00
~
14:00
Six o'clock 35km



going up


August / December E17
関越自動車道
Takasaka SA
near
Saigama-ken Higashimatsuyama-shi
(Higashimajimashi)
14:00
~
22: 00
17 o'clock 35km
8/13 Tue E4
東北自動車道
Kamikawachi (Kamikawachi) SA
near
Utsunomiya city, Tochigi prefecture
(Utsunomiyari)
13:00
~
22: 00
17 o'clock 35km
8/14 Water E4
東北自動車道
Kazo (Kazo) IC
near
Saitama Prefecture Kazo City
(Kozushi)
15:00
~
23: 00
18 o'clock 35km
8/14 Water E4
東北自動車道
Kamikawachi (Kamikawachi) SA
near
Utsunomiya city, Tochigi prefecture
(Utsunomiyari)
13:00
~
23: 00
17 o'clock 45km
8/14 Water E17
関越自動車道
Takasaka SA
near
Saigama-ken Higashimatsuyama-shi
(Higashimajimashi)
14:00
~
22: 00
17 o'clock 35km
8/15 trees E17
関越自動車道
Takasaka SA
near
Saigama-ken Higashimatsuyama-shi
(Higashimajimashi)
13:00
~
22: 00
17 o'clock 35km
8/17 Saturday E1
Tomei Expressway
Yamato (Yamato) TN
near
Yamato-city, Kanagawa prefecture
(Yamato)
13:00
~
23: 00
17 o'clock 35km

For a list of major traffic congestion (peak congestion length of 10 km or more) in Expressway in Kanto Koshin district and Shizuoka prefecture,Attachment-1] [PDF: 188KB]Link to PDFPlease refer to.

Also, especially for long traffic avoidance casesAttachment-3] [PDF: 471 KB]Link to PDFPlease refer to the.

(3) Comparison of the number of traffic jams with the Bon Festival period of last year (Thursday, August 9, 2018-Sunday, August 19)

The unit of the numerical value in the table is "times"

Traffic Size 【1】 2019 Degree prediction [2] The results of 2018 Difference (【1】 - 【2】)
going down going up Total going down going up Total going down going up Total
  Number of traffic jams of 10 km or more 99 150 249 93 134 227 6 16 22
  Out of 30 km traffic congestion 11 17 28 15 16 31 ▲4 1 ▲3

※ Including the impact of accidents etc.

2 How to get road traffic information

Regarding the method of obtaining real-time road traffic information and congestion prediction information,Attachment-2[PDF: 288KB]Link to PDFPlease see

3 Efforts of customer service (Countermeasures for congestion)

We will work to strengthen customer services, such as rear-end alerting to the end of traffic jams, placement of parking lot rearranging personnel in service areas, installation of temporary toilets and securing of large-sized car parking.

[Example of measures]
  • [1] In-bound alerting the rate of decrease in the slope, etc.
    [1] In-bound alerting the rate of decrease in the slope, etc.
  • [2] Warning for collision to the end of traffic jam
    [2] Warning for collision to the end of traffic jam
  • 【3】 Arrangement of parking lot rescuers at rest facilities
    【3】 Arrangement of parking lot rescuers at rest facilities
  • 【4】 Establishment of extra toilet
    【4】 Establishment of extra toilet
  • 【5】 Secure large car parking
    【5】 Secure large car parking
  • 【6】 Providing congestion extension information on road information board
    【6】 Providing congestion extension information on road information board
  • 3: Sections subject to congestion extension information are as follows.
    E1 Tomei (Tokyo IC-Toyokawa IC), E1A Shin Tomei (Atsugi Minami IC-Isehara JCT, Gotenba JCT-Mikasa JCT), E4 Tohoku Expressway (Kawaguchi JCT-Yaita IC), E6 Joban Expressway ( Misato JCT-Hitachi Minami Ota IC) , E17 Seki Kan-Etsu Expressway (Nerima IC-Showa IC), E50 North Kanto Road (Takazaki JCT-Ota Sasazuka IC, Ota Yayoi IC-Iwatsuki JCT, Kashiwagi Tsuga JCT-Utsunomiya Kamikawa Mikawa IC, Kasama West IC-Mito Minami IC), E51 East Kanto Road (starting point-Narita IC), E52 Chubu Crossing Road (Shin Shimizu JCT-Tomizawa IC), E65 New Airport Road, E14 Keiyo Road , Tateyama Road, Futtsukan Yamado (Excludes Kyonan Toyama IC-Tomiura IC), C3 outside Circular road, C4 Ken-O Road road (Akiruno IC-Daiei JCT), CA Tokyo Wan Aqua-Line Expressway Aqua line connection way
  • 4: Some information boards can not display red triangle marks.

~ Request for safe driving to customers ~

  • In order to prevent trouble during driving, please check the car before running
  • Falling objects on the Expressway lead to serious accidents
    As well as confirmation before departure, let's reconfirm with SA and PA whether there is slack in the rope when traveling long distances
  • Be sure to wear a seat belt on all the seats, including the back seat
  • Insert the ETC card securely
  • Please slow down the ETC lane to less than 20 km / h and enter the ETC lane slowly
  • Please refrain from refueling and toilet as soon as possible to take a reasonable break and drive safely
  • Long driving is the source of the accident
    If you feel "sleepy" or "tired" during driving, please do not overdo it and please take a break as soon as possible
  • There are many rear-end accidents at the end of the traffic jam
    Please take care to prevent a rear-end collision, for example, signaling the following vehicle with an early hazard lamp at the end of the traffic jam, without looking aside
  • A motorcycle accident has occurred
    Keep track of traffic and weather conditions, take sufficient inter-vehicle distance, and drive at a safe speed
    Overtaking vehicles Overtaking is dangerous, please stop
  • There are many accidents where people are hit by Expressway
    If you are forced to go out of the vehicle due to an accident or failure, please signal the rear car with a hazard, flame tube, stop indicator, and report to a safe place such as the outside of the guardrail and emergency call etc.
  • Please inform us of road abnormality by emergency telephone or road emergency dial '# 9910'

~ Request for cooperation to alleviate congestion to customers ~

  • Please use the traffic jam prediction information and avoid using the peak, so please use it
    Especially for avoidance of long congestion [Attachment-3] [PDF: 471 KB]Link to PDFPlease refer to the
  • In-bound as well as attention to the slowdown in the hill, take the vehicle-to-vehicle distance to enough, except for overtaking at the time, please use the driving lane
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