Select an Unconventional Intersection Type:

At-Grade & Signalized

At-Grade & Unsignalized

Grade-Separated & Signalized

Grade-Separated & Unsignalized

Continuous Flow

Design Description

Left-turning vehicles begin their turn several hundred feet prior to the main intersection at a signalized "crossover" intersection and move into separated lanes to the right of the opposing thru movement. The protected left turns are completed simultaneously with thru movements, allowing simple two-phase intersection signal control.

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