Route data and other service information is loaded to the system dynamically via the internet when installed and the system checks for updates daily thereafter.
When in service, the app communicates with the buses real-time system (via SIRI subscription) to update journey information throughout the day. When the next stop is approaching, a notification message is broadcast on screen to confirm the vehicle will shortly be arriving at the next stop.
Using a text-to-speech system means there’s no need for any pre-recorded messages.