Combined with motion sensors this measures real road distances — no car-size guessing. Best within ~15 m when standing; longer range from a window.

Adjusts calibration. Cars average 4.5m long but only 1.8m wide.

Angle between your camera and a perpendicular line to the road (0 = perpendicular).

Speeds above this limit will be flagged in red. Auto-detected from map data when GPS is available.

Tap two points on the road at a known distance to improve accuracy. Works with any view mode.

Not calibrated — using vehicle size estimate

Enables road name display. Free key at developer.mapy.com