Results of winter tire installation survey on Expressway in the Kanto region (final report)

~ Wear winter tires and carry a tire chain! ~

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  • Results of winter tire installation survey on Expressway in the Kanto region (final report)

January 24, 2020
East Nippon Expressway Co., Ltd.
Kanto Regional Head Office

NEXCO EAST Kanto Regional Head Office (Saitama City, Saitama Prefecture) conducted a second winter tire wearing condition survey this year at a rest facility in the jurisdiction in the middle of January with the aim of raising awareness of safe driving on snowy roads. did.

 The winter tire installation rate was 73.3% for small cars, 95.0% for large cars, and 78.8% for all car models. Compared to the previous survey (conducted in mid-December), we can see an increase in winter tire installation rates for both small and large vehicles. Especially for small cars, we found that the installation rate increased significantly from 51.8% to 73.3%.

Image of winter tire installation rate

On snowy / frozen roads, summer tires cause more accidents than winter tires.

Even in the Tokyo metropolitan area, where it normally does not snow, road surface freezing and snowfall can occur. In January 2018, heavy snowfall occurred in a wide area centering on the Tokyo metropolitan area, and Expressway within the jurisdiction caused road closures and slip accidents.

 Running on summer tires on snowy or frozen roads is extremely dangerous, so please wear winter tires or carry a tire chain and drive safely.

Also, During unusual heavy snowfall, such as heavy snowfall special warnings and emergency announcements about heavy snowfall, we may impose "chain regulations" that prevent us from running without a chain even with winter tires.

On winter Expressway, be sure to carry tire chains in case of emergency, and refrain from going out unnecessarily and urgently when such heavy snowfall is expected in advance.

1 Overview of winter tire installation status survey (2nd)

Investigation period

2020, January 15 (Wednesday) and January 19 (Sunday)
※ the first time (the last time) is 2019 in December 11 (Wednesday) and December 15 (Sun)
* Both the 1st and 2nd sessions are held before and after some rest facilities.

Survey location

Typical rest facility near the metropolitan area A typical rest facility near a snowfall area
Survey location Survey location
Hasuda SA Nasu Highlands SA
Miyoshi PA Akagi Plateau SA
Moriya SA Yokogawa SA
Samurai SA

2 Results of winter tire installation status survey (second survey) (number of surveys: 3,367 in total)

Winter tire installation rate (by metropolitan area / snow areas)

  • Image of winter tire installation rate in the Tokyo metropolitan area (2nd)
  • In the Tokyo metropolitan area, the installation rate is 55.4% for small cars and 94.7% for large cars.
  • Image image of winter tire installation rate (2nd) in snowfall area
  • In snowfall areas, the installation rate is 91.7% for small cars and 95.5% for large cars.

Survey results (mounting rate / number of surveys) at each rest facility

Image of the survey results (mounting rate / number of surveys) at each rest facility

3 Request from NEXCO EAST Kanto Regional Head Office

  • Please "wear early winter tires and carry a tire chain before snowfall".
    Since summer tires are prone to slip on snowy roads, slip accidents on winter roads can lead to serious accidents, so please wear winter tires early and carry the tire chain.
  • Please drive slowly and safely when driving on snowy roads.
    Even if you are wearing winter tires, please keep the distance between cars enough and keep your speed down. Do not operate with sudden changes such as sudden steering or braking, and drive slowly and safely.
  • Please "collect information before and after going out".
    The weather on the Expressway winter changes rapidly. Even if the place of departure is sunny, it may snow at the destination or at the passing point, so be sure to check the road and weather information frequently before and during your trip.

Winter Expressway in preparation for the "Man is visual location Moshi ..." of, the know-how of safe driving, our HP "DraPla in" Dr Mammoshi Is introduced in the video.

In addition, we provide weather information (forecasts and actual conditions) and snow road information in real time on our website “Dora Tora” etc., and we also inform the official Twitter about Expressway closures and event information by area, so please do not miss it. Please take a look.

[DraPla] "What to do at the winter Expressway?"
https://www.driveplaza.com/special/manmoshi/dousuru/
[DraTra] Weather information (forecasts and live conditions), snow road information (live cameras, etc.)
https://www.drivetraffic.jp/
[Twitter] (Kanto) Expressway closures and event information
https://twitter.com/e_nexco_kanto

[DraPla]

"What to do at the winter Expressway?"

DraPla winter of the snow-covered road scholar Manmoshi Dr. Expressway image of course
Winter Expressway lecture by Dr. Mammoshi, a snow road researcher

[Twitter] (Kanto)

Expressway closures and event information

Image of Twitter (Kanto) snow road researcher Dr. Mammoshi's winter Expressway course
Winter Expressway lecture by Dr. Mammoshi, a snow road researcher

[DraTra]

Weather information (forecasts and live conditions) Snow road information (live cameras, etc.)

Image of DraTra weather information (forecast and actual condition) snow road information (live camera etc.)

"Prediction of snow impact on Expressway"

When heavy snowfall such as "heavy snow special warning" or "urgent announcement by the Ministry of Land, Infrastructure, Transport and Tourism against heavy snowfall" is expected, we will provide information on Expressway closures due to heavy snowfall from about 3 days ago.

In order to deliver this kind of information to more customers, since last year we have collaborated with Weathernews Co., Ltd., a weather information company, in collaboration with other Expressway companies to provide a new information site, "Prediction of the impact of snow on Expressway" Is provided. If there is a heavy snowfall, please check the information provision site and ask for your cooperation such as suspending travel to the heavy snowfall area and detouring over a wide area.

Image of prediction of Expressway impact of snow
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