E-Expressway-radio is a free Android application designed for highway drivers, delivering real-time traffic information tailored to their specific route and direction. The app provides voice notifications about road conditions ahead, ensuring users stay informed even if they miss a message, with the option to replay information. Additionally, it offers text format for received updates, enhancing accessibility for drivers.

The application also includes crucial emergency notifications through push alerts, informing users about hazards like broken-down vehicles and falling objects. Beyond traffic updates, E-Expressway-radio features service and parking area information, allowing users to access valuable details along their route. With a focus on safety and convenience, this app is an essential tool for those traveling on Japan's highways.