Traffic turning left as conflicting streams

Because traffic turning left shares joint conflict areas with both oncoming traffic and with pedestrians and cyclists traveling in the same direction, they are in principle seen as conflicting flows and must be released in different phases. They are only classified as signal protected if all streams that conflict with them are blocked while they are released. If this approach is adopted, it results in multi-phase controllers in which through traffic and traffic which is turning is released alternately. 

Traffic turning ieft as partiaiiy confiicting streams 

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