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Objective: Identify locations where roads are present at a density that impacts the quality of wildlife habitat and fragments the landscape.

Data: A national roads vector dataset has been acquired from the USGS National Transportation Dataset. The data were reattributed to represent three classes: (1) Unimproved, (2) Paved, (3) Light Duty roads. The new classes correspond to the following classes from the National Transportation Dataset:

1. Unimproved: Four-wheel drive roads.

2. Paved: Controlled access highway, Secondary Highway or Major Connecting Road, Ramps

3. Light Duty: Local Connecting Roads, Local Roads

   Data Format: Polylines were converted to a raster for each TCA assessment year. The value at a pixel corresponds to the class of road at that location. Values differ slightly between the years:

   2024: 1- Light Duty, 2- Paved, 3- Unimproved, 4- Other

   2023: 1- Light Duty, 2- Paved, 3- Unimproved, 4- Other

   2022: 1- Light Duty, 2- Paved, 3- Unimproved

   2021: 1- Light Duty, 2- Paved, 3- Unimproved

   2020: 1- Light Duty, 2- Paved, 3- Unimproved, 4- Other, 5- Decommissioned

   Spatial Resolution: 10m

   Source data: USGS National Transportation Dataset

   Additional Resources:

   Details on Method Changes and Source Data Versions

   Overview of the Terrestrial Condition Assessment: TCA Hubsite or Landfire Office Hour Presentation

   Explore the results of the most recent assessment: TCA Interactive Data Viewer

   Learn more about the TCA KPI: TCA Dashboard
   
   Name: Ecosystems/USFS_EDW_TCA_RoadDensity
   
   Description:
   
   Single Fused Map Cache: false
   
   Extent:

   XMin: -1.47673783757E7
   YMin: 2922878.326899998
   XMax: -6992928.375700001
   YMax: 6775488.326899998
   Spatial Reference: 102100  (3857)  LatestVCSWkid(0)
   
   
   Initial Extent:
   XMin: -1.47673783757E7
   YMin: 2922878.326899998
   XMax: -6992928.375700001
   YMax: 6775488.326899998
   Spatial Reference: 102100  (3857)  LatestVCSWkid(0)
   
   
   Full Extent:
   XMin: -1.47673783757E7
   YMin: 2922878.326899998
   XMax: -6992928.375700001
   YMax: 6775488.326899998
   Spatial Reference: 102100  (3857)  LatestVCSWkid(0)
   
   
   Time Info:
   Start Time Field: StdTime
   End Time Field: StdTime
   Time Extent:
   [2020/01/01 00:00:00 UTC, 2024/01/01 00:00:00 UTC]
   
   Time Reference: N/A
   Pixel Size X: 10.0
   
   Pixel Size Y: 10.0
   
   Band Count: 1
   
   Pixel Type: U4
   
   RasterFunction Infos: {"rasterFunctionInfos": [ { "help": "", "name": "RoadDensity", "description": "TCA Ind03 Road Density" }, { "help": "", "name": "None", "description": "Make a Raster or Raster Dataset into a Function Raster Dataset." }, { "help": "", "name": "Roads", "description": "A raster function template." } ]}
   
   Mensuration Capabilities: Basic
   
   Inspection Capabilities:
   
   Has Histograms: true
   
   Has Colormap: false
   
   Has Multi Dimensions : true
   
   Rendering Rule:
   
   Min Scale: 0
   
   Max Scale: 0
   
   Copyright Text: USFS, USDA, GO, USGS
   
   Service Data Type: esriImageServiceDataTypeGeneric
   
   Min Values: 1
   
   Max Values: 5
   
   Mean Values: 1.474595145874968
   
   Standard Deviation Values: 0.83126729884286898
   
   Object ID Field: objectid
   
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   Default Mosaic Method: ByAttribute
   
   Allowed Mosaic Methods: ByAttribute,NorthWest,Center,LockRaster,Nadir,Viewpoint,Seamline,None
   
   SortField: StdTime
   
   SortValue: 0
   
   Mosaic Operator: First
   
   Default Compression Quality: 75
   
   Default Resampling Method: Majority
   
   Max Record Count: 1000
   
   Max Image Height: 100000
   
   Max Image Width: 100000
   
   Max Download Image Count: 20
   
   Max Mosaic Image Count: 20
   
   Allow Raster Function: true
   
   Allow Copy: true
   
   Allow Analysis: true
   
   Allow Compute TiePoints: false
   
   Supports Statistics: true
   
   Supports Advanced Queries: true
   
   Use StandardizedQueries: true
   
   Raster Type Infos:
   Name: Raster Dataset
   Description: Supports all ArcGIS Raster Datasets
   Help:
   
   Has Raster Attribute Table: false
   
   Edit Fields Info: N/A
   
   Ownership Based AccessControl For Rasters: N/A
   
   Child Resources:   Info   Histograms   Statistics   Key Properties   Legend   Raster Function Infos   Multidimensional Info   Slices
   
   Supported Operations:   Export Image   Query   Identify   Measure   Compute Histograms   Compute Statistics Histograms   Get Samples   Compute Class Statistics   Query GPS Info   Find Images   Image to Map   Map to Image   Measure from Image   Image to Map Multiray   Query Boundary   Compute Pixel Location   Compute Angles   Validate   Project