Section 66102 Of Chapter 10. Highway Interchange Districts From California Government Code >> Division 1. >> Title 7. >> Chapter 10.

. The boundaries of each district shall be designated by the local jurisdiction within which each interchange is located and shall include the territory that the local jurisdiction deems to be affected by each interchange, but in no case shall the area consist of less than a circle of one-mile radius from the point of intersection of the centerline of the West Side Freeway with the centerline of any highway, street, or road intersecting at an interchange.