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6. Calculate Scenario 2

For this section, we will measure the projected impact of your future land use map. In the folder "6_Scenario2", add the layer Future_LU_Layer to ArcMap.




Set up Scenario 2
  1. Define your scenario. Go to File>Define Scenario Layer and ensure that Scenario 2 is equal to ET_Vision2.



  2. Set your scenario. Go to Edit Scenarios > Scenario 2.



Join Data to Scenario 2
  1. Perform a join with the ET_Vision2 and Future_LU_Map. First, open the attribute table by right-clicking on ET_Vision1


  2. Click on Table Options and go to Joins and Relates>Join...

      
  3. Under Part 1, choose Future_LU_Layer; Under Part 2, choose the second radio button; and under Part 3, navigate to your working folder and name the layer,"Joined_Spatial_Layer".




  4. Now we will convert the polygrid to points, so we can more accurately join the layers. First, select the Search button at the top of the menu.



    In the Search Box, type "Feature to point" and select the tool when it appears in the results.

     

  5. In the Feature to Point box, under Input Features, insert Joined_Spatial_Layer, under Output Feature Class, navigate to your working folder and name the file Parcel_Points. Finally, check the box next to Inside (optional). Click OK.




  6. When the analysis finishes, you should have a new layer that has one point for every polygonal feature in the polygrid:


  7. You now need to join the Joined_Spatial_Layer to ET_Vision1 in order to map the future land use. First, right-click on ET_Vision2, Open the Attribute Table and select Join...


  8. In the Join Data menu, next to part 1, select OBJECTID. Next to part 2, select Joined_Spatial_Layer. Next to part 3, select OBJECTID.


  9. Now, go to Table Options and choose Select By Attributes...



  10. Find "Joined_Spatial_Layer.FLUM" and then select "Get Unique Values" to populate the Field box with all of the field's records.


  11. Examine all of the field values and make a determination for which Development type each would fall under. This is a sample dataset, but the process would be the same in a real-world scenario. So, for example, set '   "Joined_Spatial_Layer.FLUM" = 'Civic/Education'   ' and click APPLY. 

      

  12. Now with all of the polygons selected, go to the ENVISION PAINT TOOLS menu and choose the "Civic" and click APPLY.


  13. The selected polygons should now have a development type color assigned.


  14. Continue this process until you have selected each type once and painted to create a map. Remember, this is not an accurate dataset, so it won't be perfect. The goal is to conceptualize the process.



  15. Hopefully, you are also still connected to your Excel Workbook. The changes will be reflected in the SCENARIO 3 tab.

Before you wrap up, remove the join by going to Table Options >Join and Relates > Remove All Joins.