TomTom NAVIGATION SYSTEM Reference Manual page 80

Red light camera - this type of camera checks for vehicles breaking traffic
rules at traffic lights.
Average speed check - these types of cameras measure your average
speed between two points. You are warned at the start and end of the
average speed check area.
When you first start using your device, no warning sounds are played for these types of cameras:
Accident black spot
Ungated railway crossing
Bi-directional safety camera
Toll booth camera
Restricted road camera
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