A description of the hierarchy role performed by different parts of the road network. It also provides criteria to describe each road role type. The role type designated to each road should represent the role that the road is intended to perform. It may not necessarily reflect the current conditions on the road. A total of six hierarchy types are used for roads in Western Australia.The Road Hierarchy provides a high level description of the hierarchy performed by roads in the network across WA. Road management is guided by the hierarchy type of each road. Only public roads are added to the Functional Class can be identified with Road Hierarchy role.Note that you are accessing this data pursuant to a Creative Commons (Attribution) Licence which has a disclaimer of warranties and limitation of liability. You accept that the data provided pursuant to the Licence is subject to changes.Pursuant to section 3 of the Licence you are provided with the following notice to be included when you Share the Licenced Material:- The Commissioner of Main Roads is the creator and owner of the data and Licenced Material, which is accessed pursuant to a Creative Commons (Attribution) Licence, which has a disclaimer of warranties and limitation of liability.Creative Commons CC BY 4.0 https://creativecommons.org/licenses/by/4.0/