The program uses the coordinates given by the GPS antenna in the background.
If you find that the program does not record your position accurately, please go to the SETTINGS -> APPLICATION MANAGEMENT menu, find this application there and check what is set for battery saving.
If the battery is in power save mode, please switch it to unlimited use as this will prevent the application from getting accurate coordinates.

The purpose of the program, whether running in the background or on a locked screen, is to constantly monitor your position and indicate when you are approaching trafipax.

Using the program:
1: The background service is started with the Start service menu item in the main menu. This starts a background service on your phone, which ensures that the program always monitors your GPS coordinates, whether you are on the phone or using a car GPS program, or if you have just locked the screen.
2: Tap on START to start the trafipax monitoring itself.
3: You should use the PAUSE menu item if you stop for a long time, say for rest, and do not want to end the trafipax monitoring yet, but you also do not want to burden the phone unnecessarily.
4: Monitoring the traffic lights is completed with the ARRIVAL menu item.

You can view the routes recorded on your phone by tapping View previous routes.