"MICHI-RADI" is an application that guides traffic information (Road Closure, Accident, Traffic jam, Required time) on the expressway by automatic voice (Japanese, English, Chinese, Korean) according to the current direction of travel and connected routes.

The service provision line is a highway managed by NEXCO Central Nippon.


*The use of mobile phones by driving drivers is prohibited by the Road Traffic Law.　Please check while the vehicle is stopped.

*An internet connection is required to use this app.

*This application uses GPS location information from your smartphone to accurately determine your location on the highway.To enable this service in the background (when the device is sleeping, when other apps are used together, etc.), please set the use of location information to "Always Allow" and make it possible to obtain accurate location information.
Even with the above settings, if you close this application, no communication charges will be incurred because the GPS location information will not be used.

*Information provision fee is free. However, communication charges will be borne by the customer.

*Display, operation, and functions may be restricted depending on the model of the Internet connection terminal used.

*Depending on the model of the Internet connection terminal that uses this app, the information generated from the location information acquired by the GPS function or the functions of this app provided using the information may not be available.

*The information provided by this app may not be acquired or errors may occur depending on the customer's usage environment, GPS satellite radio wave conditions, and radio wave base station conditions.

*Usage environment
Android device with Android 8 or later