Permanent roads have been subdivided into two categories: Primary and Secondary.
Primary roads are the main arterial roads for a tract and are usually connected to the access points. These road systems handle a bulk of the traffic, including hauling, and are maintained on a regular basis to ensure access to the tract.
Secondary roads are less frequently used and are maintained on a less frequent basis than primary roads. However; unlike temporary roads, these road types remain open (at least part time) for vehicle traffic and for other forest uses such as landowner access or hunting access. They may have been constructed for a single job, but ultimately stay open after the job is complete.