Congestion prediction on Expressway during the year-end and New Year period [national version]

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  • Congestion prediction on Expressway during the year-end and New Year period [national version]

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November 25, 2020
East Nippon Expressway Co., Ltd.
Central Nippon Expressway Co., Ltd.
West Japan Expressway Co., Ltd.
Honshu-Shikoku Expressway Co., Ltd.
(Public interest incorporated foundation) Japan Road Traffic Information Center

NEXCO EAST/NEXCO CENTRAL/NEXCO WEST /JB Honshi Expressway/Japan Road Traffic Information Center has compiled a forecast of traffic congestion due to traffic concentration during Expressway the year-end and New Year holidays [8 days from December 28, Reiwa (Wed.) ~ Reiwa.1 4 (Wed.). January 4, 5 (Wed.)].

1 Request for distributed use by predicting traffic congestion and changing the date and time of use

  • After confirming the content of the traffic congestion forecast, please avoid traffic congestion by changing the day and time of use, etc., from the perspective of preventing the Large of new coronavirus infection.
    On the Out-bound line from December 29th (Thursday) to 30th (Friday) and January 2nd (Monday),
    There will be frequent traffic jams on the In-bound line from January 2nd (Mon) to 3rd (Tue).

Number of traffic jams over 10km

Total of up and down lines 169 times (12/28-1/4)

Congestion frequency of 10km or more Image image of Out-bound line In-bound line

Prediction of particularly long traffic jams for each company

PA: Parking 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”.
  • For details on traffic jams at peaks of 20 km or more, please see [Attachment 1] [PDF: 209KB], and for information on how to avoid traffic congestion, please see [Attachment 2] [PDF: 688KB].

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 Plans for countermeasures against congestion at rest facilities, etc.

Based on traffic congestion predictions and past traffic congestion periods (GW, Obon, year-end and New Year holidays, etc.), during periods when particularly heavy congestion is expected, parking lot control staff will be assigned at rest facilities, etc., temporary toilets will be installed, We are planning to implement congestion countermeasures such as securing large car parking spaces.
In addition, from the perspective of preventing the Large of the new coronavirus infection at rest facilities, we ask for your cooperation in dispersed use, such as changing the day and time of use.

3 Requests for alleviating traffic congestion

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

  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!
Image image of speed reduction alert on In-bound etc.

4 Requests 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

5 Beware of snow on Expressway in winter

In winter, Expressway can be hit by sudden heavy snowfalls. In addition to carefully checking the weather information, please carry tire chains and use winter tires (such as studless tires) in case of emergency. Snowy roads in winter are more slippery than dry roads.
On such a road surface, driving with "abrupt" (sudden steering, sudden acceleration, sudden braking) is very dangerous. Please keep your speed low and keep a safe distance between vehicles.

Image image of alerting by information board

(Reference) Comparison with past results

2019 degree and comparison with the number of traffic jams in FY Reiwa 3 are as follows. 2019 fiscal year Reiwa and fiscal year 3 results include traffic congestion due to accidents and other factors.

Image of comparison with the number of traffic jams in FY 2019 and FY Reiwa
  1. The number of traffic jams over 10km includes the number of traffic jams over 30km.
  2. FY2022 forecasts are aggregated for 8 days from December 28, 2020 (Wednesday) to January 4, 2023 (Wednesday)
  3. 2019 results are totaled for 8 days from Saturday, December 28, 2019 to Saturday, January 4, 2020.
  4. FY2021 results are aggregated for 8 days from December 28, 2021 (Tuesday) to January 4, 2022 (Tuesday)
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