{ "snippet": "The Road Density Indicator is used to identify areas where roads could impact wildlife habitat and fragment the landscape. For the TCA, road density is calculated in each LTA. This multidimensional imagery layer contains roads on Forest Service lands converted to raster for assessment years 2020-2024.", "summary": "The Road Density Indicator is used to identify areas where roads could impact wildlife habitat and fragment the landscape. For the TCA, road density is calculated in each LTA. This multidimensional imagery layer contains roads on Forest Service lands converted to raster for assessment years 2020-2024.", "accessInformation": "USFS, USDA, GO, USGS", "thumbnail": "thumbnail/thumbnail.png", "maxScale": 5000, "typeKeywords": [ "ArcGIS Server", "Data", "Image Service", "Service" ], "description": "

Direct Download (Raster Data Gateway)<\/span><\/span><\/a><\/p>

Objective:<\/span><\/span> Identify locations where roads are present at a density that impacts the quality of wildlife habitat and fragments the landscape.<\/span><\/span><\/p>

Data:<\/span><\/span> 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: <\/span><\/span><\/p>

  1. Unimproved: Four-wheel drive roads. <\/span><\/span><\/p><\/li>

  2. Paved: Controlled access highway, Secondary Highway or Major Connecting Road, Ramps <\/span><\/span><\/p><\/li>

  3. Light Duty: Local Connecting Roads, Local Roads <\/span><\/span><\/p><\/li><\/ol>

    Data Format:<\/span><\/span> 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 due to data improvements and updated information from state and local sources:<\/span><\/span><\/p>

    2024: 1- Light Duty, 2- Paved, 3- Unimproved, 4- Other<\/span><\/span><\/p>

    2023: 1- Light Duty, 2- Paved, 3- Unimproved, 4- Other<\/span><\/span><\/p>

    2022: 1- Light Duty, 2- Paved, 3- Unimproved<\/span><\/span><\/p>

    2021: 1- Light Duty, 2- Paved, 3- Unimproved, 4- Other<\/span><\/span><\/p>

    2020: 1- Light Duty, 2- Paved, 3- Unimproved, 4- Other<\/span><\/span><\/p>

    Spatial Resolution:<\/span><\/span> 10m<\/span><\/span><\/p>

    Source data:<\/span><\/span> <\/span><\/span>USGS National Transportation Dataset<\/span><\/span><\/a><\/p>

    Additional Resources:<\/span><\/span><\/p>

    Details on <\/span><\/span>Method Changes and Source Data Versions<\/span><\/span><\/a><\/p>

    Overview of the Terrestrial Condition Assessment: <\/span><\/span>TCA Hubsite<\/span><\/span><\/a> or <\/span><\/span>Landfire Office Hour Presentation<\/span><\/span><\/a><\/p>

    Explore the results of the most recent assessment: <\/span><\/span>TCA Interactive Data Viewer<\/span><\/span><\/a><\/p>

    Learn more about the TCA KPI: <\/span><\/span>TCA Dashboard<\/span><\/span><\/a><\/p>

    *if you have trouble viewing the Dashboard, please submit a <\/span><\/span>Tableau Viewer Access Request<\/span><\/span><\/a><\/p><\/div><\/div><\/div>", "licenseInfo": "

    Terms of Use<\/span><\/p>

    The USDA Forest Service makes no warranty, expressed or implied, including the warranties of merchantability and fitness for a particular purpose, nor assumes any legal liability or responsibility for the accuracy, reliability, completeness or utility of these geospatial data, or for the improper or incorrect use of these geospatial data. These geospatial data and related maps or graphics are not legal documents and are not intended to be used as such. The data and maps may not be used to determine title, ownership, legal descriptions or boundaries, legal jurisdiction, or restrictions that may be in place on either public or private land. Natural hazards may or may not be depicted on the data and maps, and land users should exercise due caution. The data are dynamic and may change over time. The user is responsible to verify the limitations of the geospatial data and to use the data accordingly.<\/span><\/p>

    Additionally, the U.S. Forest Service waives copyright and related rights in the work worldwide through the CC0 (which can be found at https://creativecommons.org/public-domain/cc0/).<\/span><\/p>

    In accordance with Federal civil rights law and U.S. Department of Agriculture (USDA) civil rights regulations and policies, the USDA, its Agencies, offices, and employees, and institutions participating in or administering USDA programs are prohibited from discriminating based on race, color, national origin, religion, sex, disability, age, marital status, family/parental status, income derived from a public assistance program, political beliefs, or reprisal or retaliation for prior civil rights activity, in any program or activity conducted or funded by USDA (not all bases apply to all programs). Remedies and complaint filing deadlines vary by program or incident.<\/span><\/p>

    Persons with disabilities who require alternative means of communication for program information (e.g., Braille, large print, audiotape, American Sign Language, etc.) should contact the State or local Agency that administers the program or contact USDA through the Telecommunications Relay Service at 711 (voice and TTY). Additionally, program information may be made available in languages other than English.<\/span><\/p>

    To file a program discrimination complaint, complete the USDA Program Discrimination Complaint Form, AD-3027, found online at How to File a Program Discrimination Complaint and at any USDA office or write a letter addressed to USDA and provide in the letter all of the information requested in the form. To request a copy of the complaint form, call (866) 632-9992. Submit your completed form or letter to USDA by: (1) mail: U.S. Department of Agriculture, Office of the Assistant Secretary for Civil Rights, 1400 Independence Avenue, SW, Mail Stop 9410, Washington, D.C. 20250-9410; (2) fax: (202) 690-7442; or (3) email: program.intake@usda.gov.<\/span><\/p>

    USDA is an equal opportunity provider, employer, and lender.<\/span><\/p><\/div><\/div><\/div>", "catalogPath": "", "title": "USFS_EDW_TCA_AK_RoadDensity", "type": "Image Service", "url": "", "tags": [ "TCA", "Terrestrial Condition Assessment", "Roads", "Road density", "Geospatial Office", "USFS", "AK", "Alaska" ], "culture": "en-US", "portalUrl": "", "name": "USFS_EDW_TCA_AK_RoadDensity", "guid": "", "minScale": 150000000, "spatialReference": "WGS_1984_Web_Mercator_Auxiliary_Sphere" }