Mate,
Traffic light:
* With SpeedCam - look speedcam.txt (category - redlight camera) - enable / disable the warning:
Settings: iGO Menu - Sound and warnings / alerts point settings alert types:
* Red light camera,
* Red light and speed camera
* Built-in speed camera

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* Without SpeedCam - (how on your screen at the crossroads) - files - fbl, fda

Settings - on / off view - in sys.txt, declaration

[2d]
traffic_lights = 1 (on) 0 (off)
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In addition - you can add your own - course as described osiris4isis (POI)

regards wojpen