Congestion prediction on Expressway during Obon period [national version]

Beware of traffic jams on the Out-bound from August 10th (Sat) to August 12th (Mon), and In-bound the inbound route from August 12th (Mon) to 14th (Wed)!

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

PDF version 【PDF: 282KB】

July 12, 2024
East Nippon Expressway Co., Ltd.
Central Nippon Expressway Company Limited
West Nippon Expressway Company Limited
Honshu-Expressway Company Limited
Japan Road Traffic Information Center (Public Interest Foundation)

 NEXCO東日本/NEXCO中日本/NEXCO西日本/JB本四高速/(公財)日本道路交通情報センターは、お盆期間〔令和6年8月8日(木)~令和6年8月18日(日)の11日間〕の高速道路での交通集中による渋滞予測(10km以上の交通集中渋滞)を発表します。
 渋滞緩和のため、ご利用の日や時間帯を変更いただくなど、分散利用にご協力をお願いします。

1. 1. Congestion forecast

Number of traffic jams over 10km

 Total of 504 trips (8/8-8/18)

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

Prediction of particularly long traffic jams for each company

PA: Parking Area, SA: Service Area, IC: Interchange, TN: Tunnel, BS: Bus Stop

Image image of each company's particularly long traffic jam forecast
  • ○○ Road (△△ Road) means "a traffic jam that stretches from ○○ Road to △△ Road."
  • 最大30km以上の渋滞の詳細は別紙-1【PDF:208KB】、渋滞を回避する方法については別紙-2【PDF:717KB】をご確認ください。

Please note that traffic congestion predictions are based on past traffic congestion records and recent traffic conditions, but may differ from actual traffic conditions due to traffic disturbances such as accidents, weather conditions, etc. Check the latest road traffic information before you depart and during your trip. Road traffic information can be found on the following website.

Comparison with last year (reference)

Last year (2023), people refrained from traveling during the Obon period due to bad weather, so the number of traffic jams this year is expected to increase compared to last year. Note that last year's figures include traffic jams caused by accidents, etc.

Image for comparison with last year (reference)
  1. The number of traffic jams over 10km includes the number of traffic jams over 30km.
  2. The forecast for 2024 was compiled for the 11 days from Thursday, August 8, 2024 to Sunday, August 18, 2024.
  3. The results for 2023 were calculated over the 11 days from Thursday, August 10, 2023 to Sunday, August 20, 2023.

2. Key points for alleviating traffic congestion

  1. Be careful of slowing down in areas where warnings are issued, such as when In-bound!
  2. While driving, please avoid stepping on the brakes unnecessarily and maintain a sufficient following distance!
  3. Please refrain from changing lanes recklessly during traffic congestion, as this may lead to further worsening of traffic congestion!

3. Please drive safely

We ask for your cooperation in "fastening your seatbelt at all seats" and "frequently taking early breaks." In addition, we have issued warnings on Expressway to avoid rear-end collisions at the end of traffic jams, so please drive with caution when driving.

4. Holiday discounts will not be applied during the Obon period.

To avoid worsening traffic congestion, holiday discounts will not be applied during this period. Also, to spread out and level out tourism demand, please consider using your sightseeing pass on weekdays. For details, please refer to the following URL.

Image link (external link) to download page of Adobe Acrobat Reader

To view the PDF file, you need the Adobe Systems plug-in software "Acrobat Reader (Japanese version)". If you do not have​​​ Download from here (free)Please use it.