Phases

Phases are indications shown to traffic on traffic signal aspects (a single light on a signal head). For example, a green phase gives all traffic from a particular approach the right of way through the junction (bar turning traffic). In the UK, a filter phase allows non-conflicting traffic to make particular turns (normally left or ahead) through a junction.

A movement is any path through the junction which vehicles or pedestrians are permitted to take. A movement is conflicting if its paths cross. Normally, conflicting

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