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Modeling ROS

Modeling ROS. A new look at an old problem. Rural. Urban. Semi- primtive Non-motorized. primitive. Semi-primitive, motorized. Roaded Natural. ROS Settings. Basic ROS Distances. The fine print. Steep Terrain is harder to cross. SPM. PR. ½ mile. 3 miles. SPM. SPM. SPM. SPNM.

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Modeling ROS

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  1. Modeling ROS A new look at an old problem

  2. Rural Urban Semi-primtive Non-motorized primitive Semi-primitive, motorized Roaded Natural

  3. ROS Settings

  4. Basic ROS Distances

  5. The fine print

  6. Steep Terrain is harder to cross

  7. SPM PR ½ mile 3 miles SPM SPM SPM SPNM ½ mile RN RN SPM

  8. R SPNM (access by trails) RN Congested Areas Flat ground (widen zones) SPM (cut off by Steep Slopes) R PR SPM RN Very Steep Slopes (narrows zones) RN R RN

  9. Modeling using Terrain

  10. Clean up slivers Add Attribute Fields Assign ROS class based on size and zone Final Clean Up

  11. Putting it into Perspective

  12. Summary • Use Travel Management work to determine 2 road classes and trails. • Using slope as impedance, calculate costdistance for good roads and all roads • Reclassify costdistance into zones- intersection of two maps determines SPM • Use focal function to determine road density. • Reclass density to determine R and U classes

  13. Uses of ROS • Compare effects of alternatives on Recreation setting • Provide input to forest plans and revision

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