Methods and system for constructing data representation for use in assisting autonomous vehicles navigate intersections

This invention describes a system for creating detailed digital maps of intersections specifically for self-driving cars. It works by taking an existing road map, identifying all the places where different lane segments might cross or conflict, and then using that conflict information to automatically define the boundaries and structure of an intersection. This refined intersection data is then added back to the vehicle's map, with the claims specifying that this process is performed by the autonomous vehicle itself.