Hypothetical gridded network showing arterial (y) and expressway (z) spacing

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Typical Examples of Separation of Maneuver Areas (Schematic Only)

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General types of AT-grade intersections (Source- A Policy on Geometric Design of Rural Highways, AASHO, 1965, Figure VIII-1)

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Common arrangements of maneuver areas in intersection design.

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Examples of Directional Islands

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Comparison of Potential Conflicts Between Paths of Vehicles at Intersections of Varying Lane Widths Under Various Combinations of One-Way Roads

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Rob Krier, Urban Space, Combinations of Different Types of Circus

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Rob Krier, Urban Space, Circuses Containing Building and Modulations of this Spatial Type

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Rob Krier, Urban Space, Circuses

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