{2ED3979D-CBA0-45EF-A325-A148EC9EC64D} eng; USA utf8 dataset EnviroAtlas Coordinator U.S. Environmental Protection Agency, Office of Research and Development-Sustainable and Healthy Communities Research Program, EnviroAtlas Geospatial Data Owner (919) 541-3832 109 T.W. Alexander Drive Research Triangle Park NC 27709 EnviroAtlas@epa.gov https://www.epa.gov/enviroatlas pointOfContact 2025-02-13 ISO 19115 Geographic Information - Metadata ISO 19115:2003/Cor.1:2006(E) EnviroAtlas - Des Moines, IA - Estimated Percent Green Space Along Walkable Roads 2015-12-02 publication U.S. EPA Office of Research & Development (ORD) - National Exposure Research Laboratory (NERL) Research Triangle Park NC publisher US Environmental Protection Agency (US EPA) originator This EnviroAtlas dataset estimates green space along walkable roads. Green space within 25 meters of the road centerline is included and the percentage is based on the total area between street intersections. Green space provides valuable benefits to neighborhood residents and walkers by providing shade, improved aesthetics, and outdoor gathering spaces. This dataset was produced by the US EPA to support research and online mapping activities related to EnviroAtlas. EnviroAtlas (https://www.epa.gov/enviroatlas) allows the user to interact with a web-based, easy-to-use, mapping application to view and analyze multiple ecosystem services for the contiguous United States. The dataset is available as downloadable data (https://edg.epa.gov/data/Public/ORD/EnviroAtlas) or as an EnviroAtlas map service. Additional descriptive information about each attribute in this dataset can be found in its associated EnviroAtlas Fact Sheet (https://www.epa.gov/enviroatlas/enviroatlas-fact-sheets ). The purpose of this dataset is to examine green space along walkable roads within the study area. The overall goal of EnviroAtlas is to employ and develop the best available science to map indicators of ecosystem services production, demand, and drivers for the nation. completed EnviroAtlas Coordinator U.S. Environmental Protection Agency, Office of Research and Development-Sustainable and Healthy Communities Research Program, EnviroAtlas Geospatial Data Owner (919) 541-3832 109 T.W. Alexander Drive Research Triangle Park NC 27709 EnviroAtlas@epa.gov https://www.epa.gov/enviroatlas pointOfContact asNeeded Ecosystem Environment theme EPA GIS Keyword Thesaurus Air Communities Ecosystem Services EnviroAtlas Environment Environmental Atlas Health Human Well-being Land Cover Transportation Trees theme EnviroAtlas Iowa Des Moines, IA place None https://edg.epa.gov/EPA_Data_License.html otherRestrictions Use Constraints: None. Please check sources, scale, accuracy, currency and other available information. Please confirm that you are using the most recent copy of both data and metadata. Acknowledgement of the EPA would be appreciated. otherRestrictions Access Constraints: None. PUBLIC https://project-open-data.github.io/schema/#accessLevel Standard Technical Controls eng; USA environment health transportation -93.8939549 -93.348494 41.442507 41.778535 2010-01-01 2011-01-01 true Entity and Attribute Information Entity and Attribute Overview: For more information about EnviroAtlas data, go to https://www.epa.gov/enviroatlas/enviroatlas-fact-sheets . In this dataset, the percentage of potential street green space is displayed for each hypothetically walkable city block. Green space within 25 meters of either side of the road centerline was included in the calculation. This dataset can be used by researchers, communities, and decision-makers to assess road-side green infrastructure. Processing steps were completed using Python scripts. A comprehensive list of metric creation steps is included in the Processing Steps. Entity and Attribute Detail Citation: https://www.epa.gov/enviroatlas/enviroatlas-fact-sheets EnviroAtlas Coordinator U.S. Environmental Protection Agency, Office of Research and Development-Sustainable and Healthy Communities Research Program, EnviroAtlas Geospatial Data Owner (919) 541-3832 109 T.W. Alexander Drive Research Triangle Park NC 27709 EnviroAtlas@epa.gov https://www.epa.gov/enviroatlas distributor https://enviroatlas.epa.gov/download/DMIA_PctStGS_tif.zip download Download The URL providing direct access to the downloadable dataset. download https://enviroatlas.epa.gov/arcgis/rest/services/Supplemental/PctStGS_AllCommunities/MapServer ESRI:ArcGIS API The endpoint of a web service to access the dataset (REST endpoint, WMS GetCapabilities URL, or a SOAP WSDL endpoint). webMapService https://www.epa.gov/enviroatlas/enviroatlas-data information Documentation URL for accessing related documents such as data dictionary, technical information about a dataset, developer documentation, etc. information https://www.epa.gov/enviroatlas information Home Page Alternative landing page used to redirect user to a contextual, Agency-hosted "homepage" for the Dataset or API information dataset Horizontal Positional Accuracy Report Data were collected using methods that have unknown accuracy (EPA National Geospatial Data Policy [NGDP] Accuracy Tier 10). For more information, please see EPA's NGDP at https://www.epa.gov/geospatial/geospatial-policies-and-standards Features represented have not been tested for completeness Features represented have not been tested for completeness Tests for integrity have not been performed. This lineage was generated by the FGDC CSDGM to 19139 transformation Begin with the 2011 NavTeq Streets Layer and the 1-Meter Land Cover Classification for the EnviroAtlas community created by the US EPA EnviroAtlas Team. 2015-05-01T00:00:00 Project NavTeq Streets layer into UTM. 2015-05-01T00:00:00 Remove roads with multiple entrance/exit ramps and roads with speed limits above 54 mph. Remove any additional, non-walkable roads at the discretion of the analyst. 2015-05-01T00:00:00 Create points for each intersection by unsplitting the line and intersecting it with itself with point selected as the output. 2015-05-01T00:00:00 Reclassify the Land Cover into a binary green space raster (Water - 10 =1; Trees & Forest - 40 = 1; Grass & Herbaceous - 70 = 1; Agriculture - 80 = 1; all else = 0) 2015-05-01T00:00:00 Convert the green space pixels into polygons 2015-05-01T00:00:00 Dissolve road layer. 2015-05-01T00:00:00 Split the road into blocks by splitting line at intersection points 2015-05-01T00:00:00 Buffer the road by 25 meters with full, flat, none options 2015-05-01T00:00:00 Calculate new variable in the focus area layer: road_ID (float) = ORIG_FID 2015-05-01T00:00:00 Calculate new variable in the focus area layer: seg_area (float) = Shape_area 2015-05-01T00:00:00 Intersect the focal area with the green space polygon layer to generate green space alongside roads 2015-05-01T00:00:00 Dissolve the green space along roads by the road identifier road_ID 2015-05-01T00:00:00 Calculate new variable in the green space grouped by road identifier layer: Pct_GS (float) = Shape_Area*100 / seg_area 2015-05-01T00:00:00 Join the Pct_GS field to the road layer based on the road_ID field 2015-05-01T00:00:00 Change null values in the Pct_GS field to 0 2015-05-01T00:00:00 Remove extraneous attributes from the road file 2015-05-01T00:00:00 Clip road file to the community boundary 2015-05-01T00:00:00 Convert the road file to raster with the Pct_GS as the value field and a cell size of 10m 2015-05-01T00:00:00 unknown 2029-02-13 This metadata was automatically generated from the FGDC Content Standard for Digital Geospatial Metadata standard (version FGDC-STD-001-1998) using the 2024-02-09T11:11:00 version of the FGDC CSDGM to ISO 19139 transform. EnviroAtlas Coordinator U.S. Environmental Protection Agency, Office of Research and Development-Sustainable and Healthy Communities Research Program, EnviroAtlas Geospatial Data Owner (919) 541-3832 109 T.W. Alexander Drive Research Triangle Park NC 27709 EnviroAtlas@epa.gov https://www.epa.gov/enviroatlas pointOfContact