It is one of three concentric roads on the hill, with State Circle the outermost and Parliament Drive the innermost.

A short section under Federation Mall is in tunnel.

The road does not form a complete circle, as a section under Commonwealth Avenue was closed a few years after opening due to the high number of crashes apparently resulting partly from the closeness of the entrance from Commonwealth Avenue and the exit to Kings Avenue.

Vehicles are now forced to exit at Commonwealth Avenue.

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