Congestion prediction on Expressway during Obon period [national version]

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  • Congestion prediction on Expressway during Obon period [national version]

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July 20, 4th year of Reiwa
East Nippon Expressway Co., Ltd.
Central Nippon Expressway Company Limited
West Nippon Expressway Company Limited
Honshu-Shikoku Expressway Co., Ltd.
Japan Road Traffic Information Center

NEXCO EAST/NEXCO CENTRAL/NEXCO WEST /JB Honshu Expressway/Japan Road Traffic Information Center has compiled a traffic congestion forecast due to traffic concentration during Expressway the Obon period (7 days from August 10, Reiwa (Wed) to Reiwa August 16, 2004 (Tue)].

1. 1. Request for decentralized use by forecasting traffic congestion and changing the date and time of use

  • Please check the contents of the traffic jam forecast and avoid traffic jams by changing the date and time of use from the viewpoint of preventing the Large of new coronavirus infection.
    In the case of normal traffic conditions,
     On the Out-bound line, traffic jams occur frequently on August 11th (Thursday / holiday) and 13th (Saturday).
     On the In-bound line, traffic jams occur frequently, especially on August 14th (Sun).

Number of traffic jams over 10km

Up and down lines total 353 times (8 / 10-8 / 16)

Image image of the number of traffic jams (Out-bound line) of 10 km or more
Image of the number of traffic jams (In-bound line) over 10km

Prediction of particularly long traffic jams for each company

PA: Parking area, SA: Service area, IC: Interchange, SIC: Smart interchange, BS: Bus stop

Image image of each company's particularly long traffic jam forecast
  • The XX Expressway (△△ Expressway) means “traffic jam that straddles the XX Expressway to the △△ Expressway”.
  • Please see [Attachment 1 [PDF: 163KB]] for details on traffic congestion with a peak of 30km or more, and [Attachment 2 [PDF: 792KB]] for how to avoid traffic congestion.

Providing road traffic information and traffic congestion prediction information

  • Road traffic conditions change from moment to moment due to accidents and weather, so please check the latest road traffic information before departure and during your trip.
  • The traffic jam prediction information shows the location of the traffic jam, the length of the traffic jam for each time zone, the time of the peak traffic jam, etc., so please use it for planning your travel date and time.
  • You can use road traffic information and traffic congestion prediction information from the following sites.

2. Schedule of congestion measures at rest facilities, etc.

At rest facilities, etc. during the period when particularly heavy congestion is predicted based on the traffic congestion forecast and the situation of the past traffic congestion period (GW, Obon, year-end and New Year holidays, etc.) Arrangement of parking lot organizers, installation of temporary toilets, securing of parking for large vehicles We are planning to implement measures against congestion such as.
From the perspective of preventing the Large of the new coronavirus infection in rest facilities, we ask for your cooperation in distributed use, such as changing the day and time of use.

3. 3. Request for alleviation of traffic congestion

Customer's A little effort will help alleviate traffic congestion. Thank you for your cooperation.

Image image of speed reduction alert on In-bound etc.
  1. In-bound attention to the rate of decrease in the slope
    In-bound in a place that is alerting the slowdown, such as slope, your attention to the speed decrease!
  2. Do not reduce the distance between vehicles too much
    Ensure sufficient inter-vehicle distance so that you do not press the brakes while driving!
  3. Please refrain from changing lanes
    Unnecessary lane changes during traffic will make the traffic worse!

Four. Request for safe driving

Accidents frequently occur during traffic congestion. When using the Expressway "Wear all seat belts"or"Frequent and early breaks" Please take the following precautions.
Also, on the Expressway, we will alert you to the rear-end collision at the end of the traffic jam, so please be careful and drive ahead.

Image of warning of rear-end collision at the end of traffic jam

(Reference) Comparison with past results

(Reference) Image image of comparison with past results 1
(Reference) Image image of comparison with past results 2
  1. The number of traffic jams over 10km includes the number of traffic jams over 30km.
  2. Reiwa 4-year forecast aggregates 7 days from August 10 (Wednesday) to August 16 (Tuesday), Reiwa 4
  3. The actual results for the first 2019 of 2019 are totaled for 11 days from August 8th (Thursday) to August 18th (Sunday) in the first year of Reiwa (including traffic congestion due to the effects of accidents, etc.).
  4. The results for 3 years of Reiwa are totaled for 11 days from August 6th (Friday) to August 16th (Monday), 3rd year of Reiwa (including traffic congestion due to the effects of accidents).
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