How to Use iHighway
iHighway provides traffic information for expressways throughout Japan.
Before using please check how to use below.
Service only available in Japanese at this time, however, we will keep improving it to make it more convenient.
iHighway How to Check Traffic Conditions
Select Area Within Japan
Click on the area you want to check on the Traffic Conditions Map.
- Prefectures in Each Area
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- 北海道（Hokkaido）：
- Hokkaido
- 東北（Tohoku）：
- Aomori, Akita, Iwate, Yamagata, Miyagi, Fukushima
- Hokuriku & Shinetsu
- Toyama, Ishikawa, Fukui, Nagano, Niigata
- 関東（Kanto）：
- Ibaraki, Tochigi, Gunma, Saitama, Chiba, Tokyo, Kanagawa
- 東海（Tokai）：
- Aichi, Gifu, Mie, Shizuoka
- 関西（Kansai）：
- Osaka, Kyoto, Hyogo, Nara, Shiga, Wakayama
- 中国（Chugoku）：
- Tottori, Shimane, Okayama, Hiroshima, Yamaguchi
- 四国（Shikoku）：
- Tokushima, Kagawa, Ehime, Kochi
- 九州沖縄（Kyushu & Okinawa）：
- Fukuoka, Saga, Nagasaki, Kumamoto, Oita, Miyazaki, Kagoshima, Okinawa
Check Traffic Conditions
Check traffic information on detailed map of the area.
* Please refer to the Romaji Search Page for the Japanese name of an expressway, IC or JCT in the Central Japan area.
- Legend
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- Road Closure
- Snow Tires, etc. Required
- One Way Alternating Traffic
- Congestion
- Accident, etc.
- Updating
