About Alerts

Alert is one of the primary concepts of the Highway Radar.

Currently, Highway Radar supports the following types of alerts.

  • Crowdsourced alerts
    • Police
    • Hazards
      • Accident
      • Vehicle stopped on road
      • Vehicle stopped on shoulder
      • Roadkill
      • Object on road
      • Pothole
      • Animals
  • Aircraft
  • Enforcement cameras
    • Red light camera
    • Speed camera
    • Speed and red-light camera
    • Lane control camera
    • Distance control camera
    • Overtaking control camera
    • Pedestrian crossing control camera
    • Height control camera
    • Weight control camera
    • Entrance control camera
    • Bus lane control camera
    • Dummy camera
    • Speed section control start
    • Speed section control middle
    • Speed section control end
    • Multi-camera
  • Radar alerts (varies by the connected detector)
    • X-band
    • K-band
    • Ka-band
    • Laser
    • POP K-band, POP Ka-band (not supported by V1)
    • MRCD / MRCT / Gatso (not supported by V1)

Each alert can be in an active or inactive state. Inactive alerts are colored gray and don't trigger any audible notifications. All active alerts have a severity level – it is ranging from one to five and displayed as a number and color of dots on the left side of an alert badge, and map label. Severity level describes the importance of the alert, and calculated differently for each type of alert (e.g., for crowdsourced alerts it depends on the proximity and bearing, and for radar it depends on the signal strength). Severity level also affects beeper frequency.

Each alert has different ways of notifying the driver of its presence. Currently, the following ways are supported.

  • Alert badge (a.k.a "arrows") – This are badges with the information about alert, normally displayed over the map.
  • Map marker – A map marker and a label with basic information about the alert. Only available for geo-referenced alerts (not for radar alerts).
  • Voice announcement – Contains basic information about the alert and is triggered at a selected severity level and speed. Each alert triggers its own voice announcement.
  • Bogey tone – Similar to voice announcement, but uses a short sound instead of a voice announcement.
  • Beeper – A continuous sound triggering for active alerts when exceeding a preset speed. For example, it can be activated when driving above the posted speed limit.
  • Screen flasher – Flashes the device screen several times with a chosen color whenever an alert reaches preset severity level.
  • Camera flashlight – Flashes the camera flashlight several times whenever an alert reaches preset severity level.
  • Vibration – Vibrates the phone using a chosen pattern whenever an alert reaches preset severity level.
  • System notification – Submits a system-level notification whenever an alert reaches preset severity level. Only works when the app is backgrounded.