100+ datasets found
  1. a

    Transportation Network (AutoCAD .dwg)

    • data-langleycity.opendata.arcgis.com
    Updated Mar 6, 2021
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    LangleyCityGIS (2021). Transportation Network (AutoCAD .dwg) [Dataset]. https://data-langleycity.opendata.arcgis.com/content/86073e3185444b1f86d0fe0d7edc9b33
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    Dataset updated
    Mar 6, 2021
    Dataset authored and provided by
    LangleyCityGIS
    License

    https://langleycity.ca/open-data-licensehttps://langleycity.ca/open-data-license

    Description

    This CAD (.dwg) package, (last updated September 25, 2024), contains all the layers within the Transportation Network group. The City of Langley has compiled all the Transportation Network layers in one AutoCAD (.dwg) file.CAD layers:RoadsSidewalksRailwayMediansBridgesDisaster Response Routes

  2. d

    2007 Contours - Township 43N Range 9E (dwg)

    • catalog.data.gov
    • data.amerigeoss.org
    • +1more
    Updated Sep 1, 2022
    + more versions
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    Lake County Illinois GIS (2022). 2007 Contours - Township 43N Range 9E (dwg) [Dataset]. https://catalog.data.gov/dataset/2007-contours-township-43n-range-9e-dwg-46655
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    Dataset updated
    Sep 1, 2022
    Dataset provided by
    Lake County Illinois GIS
    Description

    This dataset has been deprecated. Please use our 2017 Countywide Contours instead.These data comprise of one foot contours showing the elevation of Lake County, IL corresponding to the orthometric heights of the bare surface of the county (no buildings or vegetation cover). These data were developed from LIDAR data obtained between April 16, 2007 and May 07, 2007, and further supplemented by break lines collected from aerial photography taken at the same time. The contours and the aerial photography meet National Map Accuracy Standards for a 1 inch = 100 foot product. The contours have been created to be cartographically pleasing, as such some generalization has been introduced as expected. The contours have been tested against the original LIDAR points and conforms to the American Society for Photogrammetry and Remote Sensing (ASPRS) Specifications and Standards Committee, 1990, ASPRS Accuracy Standards for Large-Scale Maps, CLASS 1 map accuracy. The vertical datum is the North American Vertical Datum of 1988. The U.S. Army Corps of Engineers Engineering and Design Manual for Photogrammetric Production recommends that data intended for this usage scale be used for any of the following purposes: route location, preliminary alignment and design, preliminary project planning, hydraulic sections, rough earthwork estimates, or high-gradient terrain / low unit cost earthwork excavation estimates. The manual does not recommend that these data be used for final design, excavation and grading plans, earthwork computations for bid estimates or contract measurement and payment. Contour data is used by county agencies to study drainage issues such as flooding and erosion. Customers interested in the actual LiDAR data may download it at no cost from the USGS Center for LiDAR Information Coordination and Knowledge. These files are tiled by PLSS section and grouped by township and format for easier download. Please note that this dataset is available in for GIS in Esri shapefile format as well as for CAD in AutoCAD DWG and MicroStation DGN. We are unable to provide any support for CAD users beyond providing the data.

  3. a

    Geolocation by CAD and Civil3D Final 02112025 2

    • digital-twin-resources-3dgis.hub.arcgis.com
    Updated Feb 20, 2025
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    3D GIS Demos (2025). Geolocation by CAD and Civil3D Final 02112025 2 [Dataset]. https://digital-twin-resources-3dgis.hub.arcgis.com/datasets/geolocation-by-cad-and-civil3d-final-02112025-2
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    Dataset updated
    Feb 20, 2025
    Dataset authored and provided by
    3D GIS Demos
    Description

    The integration of AutoCAD, Civil 3D, digital models (Revit), and ArcGIS Pro combines the strengths of each system. This unified approach links together detailed design, building intelligence, and geographic context. Integrations in these areas address the increasingly complex demands of built projects, where environmental, spatial, and infrastructural factors are interconnected. Federating multiple sources of project data ensures that designs and physical infrastructure are contextually aligned with real-world environments, considering geographic constraints and environmental factors. A unified workflow in which project data authored in AutoCAD, Civil 3D, and Revit are geolocated improves communication and collaboration across project teams and organizations. Architects, engineers, urban planners, and other stakeholders gain access to centralized, interoperable project data. Software This article applies to the following software: • AutoCAD 2022 to 2025 • Civil 3D 2022 to 2025 • Revit 2022 to 2025

  4. a

    Parcels - CAD

    • hub.arcgis.com
    Updated Nov 2, 2017
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    Township of Langley (2017). Parcels - CAD [Dataset]. https://hub.arcgis.com/content/9a40991871e1483795a7ef9e9da39379
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    Dataset updated
    Nov 2, 2017
    Dataset authored and provided by
    Township of Langley
    License

    https://www.tol.ca/connect/talk-to-us/freedom-of-information/open-data-license/https://www.tol.ca/connect/talk-to-us/freedom-of-information/open-data-license/

    Description

    Property lines mapped as parcel polygons within Langley Township. The data includes the following information: Folio, PID, and civic address of existing parcels Description The Township uses two survey systems. The first was 1859 District Lot system which still describes many properties near the Fraser River. The District Lot system was superseded in 1873 with the New Westminster Township Section system which covers the bulk of the municipality and is used to the present day. The cadastral data set originated as hand drawn township-section maps in imperial scales. The lot lines were compiled from historical community maps, registered legal plans surveyed with astronomic bearings and legal descriptions where no surveys exist.

    In the late 1970’s the Township's maps were converted to metric scales and all dimension annotation was converted manually to metric. In 1982 parcels BC GAS manually digitized the hand drawn township-section maps and assembled them into a single continuous cadastral fabric encompassing the entire township. The lot line data was rubber sheeted to fit the higher accuracy mapping of neighbouring municipalities, no interior control points were used. In 1983 Langley Township obtains BC GAS Intergraph format lot line data and translated it into Terrasoft format for the Township's GIS.In 1986 the lot lines were converted to parcel polygons linked to BCAA folio numbers and Tempest. In 1987 map annotation was converted to digital. In 1999 the GIS data was converted from Terrasoft to AutoCAD Map format. In 2000 the digital base was again rubber sheeted with a township wide grid pattern of survey monuments used for control. In 2003 lot links were converted from BCAA folio numbers to Township property numbers. In 2004 GIS data is converted from AutoCAD Map format to Munsys Oracle format. In 2005 Langley Township adopts DIGITAL LEGAL SURVEY PLAN STANDARDS and new cadastral is entered directly from high accuracy UTM projected surveys. In 2009 GIS data was converted from Munsys Oracle format to ESRI ArcSDE format.

  5. d

    GIS Data Layers

    • search.dataone.org
    Updated Nov 21, 2023
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    Harvard Planning & Project Management (HPPM) (2023). GIS Data Layers [Dataset]. http://doi.org/10.7910/DVN/CKYCHU
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    Dataset updated
    Nov 21, 2023
    Dataset provided by
    Harvard Dataverse
    Authors
    Harvard Planning & Project Management (HPPM)
    Description

    The GIS data maintained by HPPM includes information on buildings and grounds related to Harvard University. Our "standard" base layers are available to Harvard affiliates and their service providers (for example, architects) working on Harvard projects in AutoCAD DWG, ESRI SHP or File Geodatabase format. Additional datasets are sometimes available by special arrangement. http://home.hppm.harvard.edu/pages/gis-data-layers

  6. a

    Community Profile CAD Planimetric Features

    • rural-utility-business-advisory-hub-site-1-dcced.hub.arcgis.com
    • gis.data.alaska.gov
    • +4more
    Updated Oct 10, 2023
    + more versions
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    Dept. of Commerce, Community, & Economic Development (2023). Community Profile CAD Planimetric Features [Dataset]. https://rural-utility-business-advisory-hub-site-1-dcced.hub.arcgis.com/maps/7f5ca7eafcbb40dc88c06a8a5072b6e3
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    Dataset updated
    Oct 10, 2023
    Dataset authored and provided by
    Dept. of Commerce, Community, & Economic Development
    Area covered
    Description

    Select Aggregate Planimetric CAD Vectors from set of 2001-2019 Community Profile AutoCAD files - Initial release version Oct 26, 2023This is an AGOL-hosted Feature Service - hence text point labels only display horizontallySee these related Services (circa Oct 2023):DCRA Community Profile Availability and Map Sheet Outlines with PDF Maps as downloadable attachmentsDCRA Community Profile Aerial Imagery (Community Hi-Res Scale)DCRA Community Profile Aerial Imagery (Community General Area Low-Res Scale)State of Alaska Maxar RGB Satellite ImageryHigh Level Documentation as a PowerPoint Presentation in PDF form

  7. u

    Tmor-Da GIS Map - Year 2016 -Autocad v18

    • figshare.unimelb.edu.au
    bin
    Updated Sep 30, 2022
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    YEE KEE KU; YeeKee Ku; YEE KEE KU (2022). Tmor-Da GIS Map - Year 2016 -Autocad v18 [Dataset]. http://doi.org/10.26188/5cf097d31122b
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    binAvailable download formats
    Dataset updated
    Sep 30, 2022
    Dataset provided by
    The University of Melbourne
    Authors
    YEE KEE KU; YeeKee Ku; YEE KEE KU
    License

    Attribution-NonCommercial-NoDerivs 4.0 (CC BY-NC-ND 4.0)https://creativecommons.org/licenses/by-nc-nd/4.0/
    License information was derived automatically

    Description

    GIS Map- Year 2016 - Autocad v18 format (encoded CRS) of Tmor-Da, Phnom Penh, Cambodia

  8. c

    Parcels Public

    • gisdata.countyofnapa.org
    • hub.arcgis.com
    Updated Aug 15, 2023
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    Napa County GIS | ArcGIS Online (2023). Parcels Public [Dataset]. https://gisdata.countyofnapa.org/maps/napacounty::parcels-public-1
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    Dataset updated
    Aug 15, 2023
    Dataset authored and provided by
    Napa County GIS | ArcGIS Online
    License

    ODC Public Domain Dedication and Licence (PDDL) v1.0http://www.opendatacommons.org/licenses/pddl/1.0/
    License information was derived automatically

    Area covered
    Description

    Internal view of the parcel layer. This view contains all the attributes that can be seen by County employees.There are approximately 51,300 real property parcels in Napa County. Parcels delineate the approximate boundaries of property ownership as described in Napa County deeds, filed maps, and other source documents. GIS parcel boundaries are maintained by the Information Technology Services GIS team. Assessor Parcel Maps are created and maintained by the Assessor Division Mapping Section. Each parcel has an Assessor Parcel Number (APN) that is its unique identifier. The APN is the link to various Napa County databases containing information such as owner name, situs address, property value, land use, zoning, flood data, and other related information. Data for this map service is sourced from the Napa County Parcels dataset which is updated nightly with any recent changes made by the mapping team. There may at times be a delay between when a document is recorded and when the new parcel boundary configuration and corresponding information is available in the online GIS parcel viewer.From 1850 to early 1900s assessor staff wrote the name of the property owner and the property value on map pages. They began using larger maps, called “tank maps” because of the large steel cabinet they were kept in, organized by school district (before unification) on which names and values were written. In the 1920s, the assessor kept large books of maps by road district on which names were written. In the 1950s, most county assessors contracted with the State Board of Equalization for board staff to draw standardized 11x17 inch maps following the provisions of Assessor Handbook 215. Maps were originally drawn on linen. By the 1980’s Assessor maps were being drawn on mylar rather than linen. In the early 1990s Napa County transitioned from drawing on mylar to creating maps in AutoCAD. When GIS arrived in Napa County in the mid-1990s, the AutoCAD images were copied over into the GIS parcel layer. Sidwell, an independent consultant, was then contracted by the Assessor’s Office to convert these APN files into the current seamless ArcGIS parcel fabric for the entire County. Beginning with the 2024-2025 assessment roll, the maps are being drawn directly in the parcel fabric layer.Parcels in the GIS parcel fabric are drawn according to the legal description using coordinate geometry (COGO) drawing tools and various reference data such as Public Lands Survey section boundaries and road centerlines. The legal descriptions are not defined by the GIS parcel fabric. Any changes made in the GIS parcel fabric via official records, filed maps, and other source documents are uploaded overnight. There is always at least a 6-month delay between when a document is recorded and when the new parcel configuration and corresponding information is available in the online parcel viewer for search or download.Parcel boundary accuracy can vary significantly, with errors ranging from a few feet to several hundred feet. These distortions are caused by several factors such as: the map projection - the error derived when a spherical coordinate system model is projected into a planar coordinate system using the local projected coordinate system; and the ground to grid conversion - the distortion between ground survey measurements and the virtual grid measurements. The aim of the parcel fabric is to construct a visual interpretation that is adequate for basic geographic understanding. This digital data is intended for illustration and demonstration purposes only and is not considered a legal resource, nor legally authoritative.SFAP & CFAP DISCLAIMER: Per the California Code, RTC 606. some legal parcels may have been combined for assessment purposes (CFAP) or separated for assessment purposes (SFAP) into multiple parcels for a variety of tax assessment reasons. SFAP and CFAP parcels are assigned their own APN number and primarily result from a parcel being split by a tax rate area boundary, due to a recorded land use lease, or by request of the property owner. Assessor parcel (APN) maps reflect when parcels have been separated or combined for assessment purposes, and are one legal entity. The goal of the GIS parcel fabric data is to distinguish the SFAP and CFAP parcel configurations from the legal configurations, to convey the legal parcel configurations. This workflow is in progress. Please be advised that while we endeavor to restore SFAP and CFAP parcels back to their legal configurations in the primary parcel fabric layer, SFAP and CFAP parcels may be distributed throughout the dataset. Parcels that have been restored to their legal configurations, do not reflect the SFAP or CFAP parcel configurations that correspond to the current property tax delineations. We intend for parcel reports and parcel data to capture when a parcel has been separated or combined for assessment purposes, however in some cases, information may not be available in GIS for the SFAP/CFAP status of a parcel configuration shown. For help or questions regarding a parcel’s SFAP/CFAP status, or property survey data, please visit Napa County’s Surveying Services or Property Mapping Information. For more information you can visit our website: When a Parcel is Not a Parcel | Napa County, CA

  9. a

    Parks, Environment and Topography (AutoCAD .dwg)

    • data-langleycity.opendata.arcgis.com
    Updated Mar 5, 2021
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    LangleyCityGIS (2021). Parks, Environment and Topography (AutoCAD .dwg) [Dataset]. https://data-langleycity.opendata.arcgis.com/content/dcb1b35ec8e24303a23b3a8cc7a79f58
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    Dataset updated
    Mar 5, 2021
    Dataset authored and provided by
    LangleyCityGIS
    License

    https://langleycity.ca/open-data-licensehttps://langleycity.ca/open-data-license

    Description

    This CAD (.dwg) package, (last updated September 25, 2024), contains all the layers within Parks, Environment and Topography group. 4The City of Langley has compiled all the Parks, Environment and Topography layers in one AutoCAD (.dwg) file. CAD layers:Flood Construction Level Extent AreaFlood Construction Level ContoursWatercoursesContours - (25cm)TrailsParks and Public SpacesEnvironmentally Sensitive Areas

  10. v

    Electrical Conduit

    • opendata.victoria.ca
    Updated Dec 27, 2018
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    City of Victoria (2018). Electrical Conduit [Dataset]. https://opendata.victoria.ca/datasets/electrical-conduit
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    Dataset updated
    Dec 27, 2018
    Dataset authored and provided by
    City of Victoria
    License

    https://opendata.victoria.ca/pages/open-data-licencehttps://opendata.victoria.ca/pages/open-data-licence

    Area covered
    Description

    Electrical conduit is a tube used to protect and route electrical wiring. Electrical Conduit data are copied into GIS from AutoCAD on a weekly basis. AutoCAD drawings are edited as needed by City of Victoria Surveyors and Staff. The "Last Updated" date shown on our Open Data Portal refers to the last time the data schema was modified in the portal, or any changes were made to this description. We update our data through weekly scripts which does not trigger the "last updated" date to change.Note: Attributes represent each field in a dataset, and some fields will contain information such as ID numbers. As a result some visualizations on the tabs on our Open Data page will not be relevant.

  11. m

    Infrastructure Railroad

    • data.matsugov.us
    Updated Jul 16, 2016
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    Matanuska-Susitna Borough (2016). Infrastructure Railroad [Dataset]. https://data.matsugov.us/maps/infrastructure-railroad
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    Dataset updated
    Jul 16, 2016
    Dataset authored and provided by
    Matanuska-Susitna Borough
    Area covered
    Description

    Alaska Railroad centerline data compiled from a GPS survey by Mullikin Surveys in 2005. Data was delivered to MSB GIS by ARR as a series of AutoCAD dwg files that were merged into a single GDB format and then published as shapefile. MSB GIS added a couple of older abandoned centerlines in the Palmer area that are sometimes needed for maps.

  12. S

    Data from: AutoCAD Map 3D

    • sddi-katalog.bayern
    https
    Updated Apr 5, 2024
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    Schwabach (2024). AutoCAD Map 3D [Dataset]. https://sddi-katalog.bayern/dataset/autocad-map-3d
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    httpsAvailable download formats
    Dataset updated
    Apr 5, 2024
    Dataset provided by
    Schwabach
    Description

    Integrieren von Daten aus geografischen Informationssystemen und CAD für GIS und 3D-Kartografie.

  13. U

    Urban Planning Apps Report

    • datainsightsmarket.com
    doc, pdf, ppt
    Updated Apr 29, 2025
    + more versions
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    Data Insights Market (2025). Urban Planning Apps Report [Dataset]. https://www.datainsightsmarket.com/reports/urban-planning-apps-510111
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    doc, ppt, pdfAvailable download formats
    Dataset updated
    Apr 29, 2025
    Dataset authored and provided by
    Data Insights Market
    License

    https://www.datainsightsmarket.com/privacy-policyhttps://www.datainsightsmarket.com/privacy-policy

    Time period covered
    2025 - 2033
    Area covered
    Global
    Variables measured
    Market Size
    Description

    The global urban planning apps market, valued at $76.9 million in 2025, is projected to experience robust growth, driven by increasing urbanization, the need for efficient resource management, and the rising adoption of digital technologies in urban planning. A Compound Annual Growth Rate (CAGR) of 7.3% from 2025 to 2033 suggests a significant market expansion. Key drivers include the need for sustainable urban development, improved citizen engagement through participatory planning platforms, and the ability of these apps to streamline complex processes like zoning and permitting. Trends like the integration of advanced analytics (e.g., predictive modeling for infrastructure needs), the incorporation of 3D visualization for better stakeholder communication, and the growing use of mobile-first solutions are further fueling market growth. While the market faces restraints such as data security concerns and the need for robust digital infrastructure in certain regions, the overall growth trajectory remains positive. The market segmentation reveals strong demand from both large enterprises and SMEs, with iOS and Android platforms dominating the app landscape. The regional breakdown shows significant market potential across North America and Europe, with emerging markets in Asia Pacific also contributing to the overall growth. The competitive landscape is dynamic, featuring established players like Esri (ArcGIS Collector) and Autodesk (AutoCAD 360) alongside innovative startups offering specialized solutions. The continued advancement of mobile technologies, coupled with increasing government initiatives promoting smart city development, will significantly impact market growth. The rising availability of high-quality geospatial data, and the integration of artificial intelligence (AI) and machine learning (ML) for optimizing urban planning processes, are poised to transform the industry. The focus on creating user-friendly interfaces that cater to various stakeholders, from planners to citizens, will be critical in ensuring broader adoption. Furthermore, collaborations between technology companies and urban planning agencies will be instrumental in driving innovation and accelerating market expansion. The market's future hinges on the successful integration of technology with established urban planning practices, creating a more efficient, sustainable, and participatory urban development process.

  14. v

    Zoning Map Labels

    • opendata.victoria.ca
    Updated Feb 7, 2019
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    City of Victoria (2019). Zoning Map Labels [Dataset]. https://opendata.victoria.ca/datasets/zoning-map-labels
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    Dataset updated
    Feb 7, 2019
    Dataset authored and provided by
    City of Victoria
    License

    http://opendata.victoria.ca/pages/open-data-licencehttp://opendata.victoria.ca/pages/open-data-licence

    Area covered
    Description

    Zoning data are updated by the Planning department as needed, and copied to the Open Data Portal daily. Zoning data are maintained in AutoCAD and then transferred to GIS for VicMap and the Open Data Portal. The labels for the zoning data are placed specifically in AutoCAD, so we export them as a separate layer in order to keep that fine placement. The Zoning Boundary data includes these labels as attributes as well, they just won't be quite as well-aligned as these. For Zoning Boundary (polygon) data, see also: Zoning Boundary data.The "Last Updated" date shown on our Open Data Portal refers to the last time the data schema was modified in the portal, or any changes were made to this description. We update our data through automated scripts which does not trigger the "last updated" date to change.Note: Attributes represent each field in a dataset, and some fields will contain information such as ID numbers. As a result some visualizations on the tabs on our Open Data page will not be relevant.

  15. v

    Comprehensive Development Area Labels

    • opendata.victoria.ca
    • open-vicmap.opendata.arcgis.com
    Updated Feb 7, 2019
    + more versions
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    City of Victoria (2019). Comprehensive Development Area Labels [Dataset]. https://opendata.victoria.ca/datasets/comprehensive-development-area-labels
    Explore at:
    Dataset updated
    Feb 7, 2019
    Dataset authored and provided by
    City of Victoria
    License

    http://opendata.victoria.ca/pages/open-data-licencehttp://opendata.victoria.ca/pages/open-data-licence

    Area covered
    Description

    "Comprehensive Development" means a development that is comprised of 2 or more of the following uses: detached dwelling, two family dwelling, attached dwelling, multiple dwelling, commercial, institutional or industrial. Comprehensive Development Area data are updated by the Planning department as needed, and copied to the Open Data Portal on a weekly basis.Comprehensive Development Area data are maintained in AutoCAD and then transferred to GIS for VicMap and the Open Data Portal. The labels are placed specifically in AutoCAD, so we export them as a separate layer in order to keep that fine placement. The Comprehensive Development Area data includes these labels as attributes as well, they just won't be quite as well-aligned as these. For Comprehensive Development Area (polygon) data, see also: Comprehensive Development Areas.The "Last Updated" date shown on our Open Data Portal refers to the last time the data schema was modified in the portal, or any changes were made to this description. We update our data through automated scripts which does not trigger the "last updated" date to change.Note: Attributes represent each field in a dataset, and some fields will contain information such as ID numbers. As a result some visualizations on the tabs on our Open Data page will not be relevant.

  16. c

    Coastal Zone Boundary [ds990] GIS Dataset

    • map.dfg.ca.gov
    Updated Jan 12, 2024
    + more versions
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    (2024). Coastal Zone Boundary [ds990] GIS Dataset [Dataset]. https://map.dfg.ca.gov/metadata/ds0990.html
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    Dataset updated
    Jan 12, 2024
    Description

    CDFW BIOS GIS Dataset, Contact: Greg Benoit, Description: Polygon versions of the terrestrial CZB with a generalized shoreline (USGS 1:24,000 Quadrangle shoreline heads up digitized at 1:3000) and with a more detailed shoreline that includes most bays and estuaries. It was digitized within AutoCAD from the Commission's certified Coastal Zone Boundary hard copy maps. The files were then imported into ArcView, and merged together following Commission jurisdictional boundaries (North Coast, North Central Coast, Central Coast, South Central Coast, South

  17. D

    GENBKGRND

    • data.seattle.gov
    • catalog.data.gov
    application/rdfxml +5
    Updated Feb 3, 2025
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    (2025). GENBKGRND [Dataset]. https://data.seattle.gov/dataset/GENBKGRND/gzru-b8hr
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    xml, csv, tsv, application/rssxml, json, application/rdfxmlAvailable download formats
    Dataset updated
    Feb 3, 2025
    Description

    View of Channelization data represents roadway paint lines, curbs, and other markings that delineate traffic lanes, bike routes, bus zones, etc. which are critical for public safety.


    Common Data Layer: Common data layer created from a read only view from this feature layer. It is owned by SDOT Transportation account and will be made available in Open Data.

    Refresh Cycle: None, Dynamic via AutoCAD updates

    Channelization data consists of the following layers:
    1. Vertical Elements
    2. Lane Widths
    3. Panel Markings
    4. Longitudinal Markings
    5. Transverse Markings
    6. Legend and Symbols
    7. General Background

  18. c

    Napa County Public Parcels

    • gisdata.countyofnapa.org
    Updated May 23, 2025
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    Napa County GIS | ArcGIS Online (2025). Napa County Public Parcels [Dataset]. https://gisdata.countyofnapa.org/datasets/napa-county-public-parcels
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    Dataset updated
    May 23, 2025
    Dataset authored and provided by
    Napa County GIS | ArcGIS Online
    License

    ODC Public Domain Dedication and Licence (PDDL) v1.0http://www.opendatacommons.org/licenses/pddl/1.0/
    License information was derived automatically

    Area covered
    Description

    Parcels delineate the approximate boundaries of property ownership as described in Napa County deeds, filed maps, and other source documents. Parcel boundaries in GIS are created and maintained by the Assessor’s Division Mapping section and Information Technology Services. There are approximately 51,300 real property parcels in Napa County. Parcels delineate the approximate boundaries of property ownership as described in Napa County deeds, filed maps, and other source documents. GIS parcel boundaries are maintained by the Information Technology Services GIS team. Assessor Parcel Maps are created and maintained by the Assessor Division Mapping Section. Each parcel has an Assessor Parcel Number (APN) that is its unique identifier. The APN is the link to various Napa County databases containing information such as owner name, situs address, property value, land use, zoning, flood data, and other related information. Data for this map service is sourced from the Napa County Parcels dataset which is updated nightly with any recent changes made by the mapping team. There may at times be a delay between when a document is recorded and when the new parcel boundary configuration and corresponding information is available in the online GIS parcel viewer.From 1850 to early 1900s assessor staff wrote the name of the property owner and the property value on map pages. They began using larger maps, called “tank maps” because of the large steel cabinet they were kept in, organized by school district (before unification) on which names and values were written. In the 1920s, the assessor kept large books of maps by road district on which names were written. In the 1950s, most county assessors contracted with the State Board of Equalization for board staff to draw standardized 11x17 inch maps following the provisions of Assessor Handbook 215. Maps were originally drawn on linen. By the 1980’s Assessor maps were being drawn on mylar rather than linen. In the early 1990s Napa County transitioned from drawing on mylar to creating maps in AutoCAD. When GIS arrived in Napa County in the mid-1990s, the AutoCAD images were copied over into the GIS parcel layer. Sidwell, an independent consultant, was then contracted by the Assessor’s Office to convert these APN files into the current seamless ArcGIS parcel fabric for the entire County. Beginning with the 2024-2025 assessment roll, the maps are being drawn directly in the parcel fabric layer.Parcels in the GIS parcel fabric are drawn according to the legal description using coordinate geometry (COGO) drawing tools and various reference data such as Public Lands Survey section boundaries and road centerlines. The legal descriptions are not defined by the GIS parcel fabric. Any changes made in the GIS parcel fabric via official records, filed maps, and other source documents are uploaded overnight. There is always at least a 6-month delay between when a document is recorded and when the new parcel configuration and corresponding information is available in the online parcel viewer for search or download.Parcel boundary accuracy can vary significantly, with errors ranging from a few feet to several hundred feet. These distortions are caused by several factors such as: the map projection - the error derived when a spherical coordinate system model is projected into a planar coordinate system using the local projected coordinate system; and the ground to grid conversion - the distortion between ground survey measurements and the virtual grid measurements. The aim of the parcel fabric is to construct a visual interpretation that is adequate for basic geographic understanding. This digital data is intended for illustration and demonstration purposes only and is not considered a legal resource, nor legally authoritative.SFAP & CFAP DISCLAIMER: Per the California Code, RTC 606. some legal parcels may have been combined for assessment purposes (CFAP) or separated for assessment purposes (SFAP) into multiple parcels for a variety of tax assessment reasons. SFAP and CFAP parcels are assigned their own APN number and primarily result from a parcel being split by a tax rate area boundary, due to a recorded land use lease, or by request of the property owner. Assessor parcel (APN) maps reflect when parcels have been separated or combined for assessment purposes, and are one legal entity. The goal of the GIS parcel fabric data is to distinguish the SFAP and CFAP parcel configurations from the legal configurations, to convey the legal parcel configurations. This workflow is in progress. Please be advised that while we endeavor to restore SFAP and CFAP parcels back to their legal configurations in the primary parcel fabric layer, SFAP and CFAP parcels may be distributed throughout the dataset. Parcels that have been restored to their legal configurations, do not reflect the SFAP or CFAP parcel configurations that correspond to the current property tax delineations. We intend for parcel reports and parcel data to capture when a parcel has been separated or combined for assessment purposes, however in some cases, information may not be available in GIS for the SFAP/CFAP status of a parcel configuration shown. For help or questions regarding a parcel’s SFAP/CFAP status, or property survey data, please visit Napa County’s Surveying Services or Property Mapping Information. For more information you can visit our website: When a Parcel is Not a Parcel | Napa County, CA

    Data last synced 07-15-2025 00:47. Data synced on a Daily interval.

  19. a

    Open Data Parcels

    • hub.arcgis.com
    • data-carver.opendata.arcgis.com
    Updated May 28, 2020
    + more versions
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    Carver County, Minnesota (2020). Open Data Parcels [Dataset]. https://hub.arcgis.com/maps/carver::open-data-parcels
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    Dataset updated
    May 28, 2020
    Dataset authored and provided by
    Carver County, Minnesota
    Area covered
    Description

    The geometry of parcels were created by Carver County's Survey department using COGO in an AutoCad environment. The AutoCad lines have been imported into a ArcGIS Geodatabase and polygons built. These polygons are attributed with a Parcel Identification Number (PID). The GIS polygons are joined by PID to the Assessor's CAMA system and Taxpayer Services tax database to show attributes of the property.

  20. D

    VerticalElements

    • data.seattle.gov
    • s.cnmilf.com
    • +1more
    application/rdfxml +5
    Updated Feb 3, 2025
    + more versions
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    (2025). VerticalElements [Dataset]. https://data.seattle.gov/dataset/VerticalElements/y2js-jec9
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    csv, tsv, application/rdfxml, application/rssxml, json, xmlAvailable download formats
    Dataset updated
    Feb 3, 2025
    Description

    View of Channelization data represents roadway paint lines, curbs, and other markings that delineate traffic lanes, bike routes, bus zones, etc. which are critical for public safety.


    Common Data Layer: Common data layer created from a read only view from this feature layer. It is owned by SDOT Transportation account and will be made available in Open Data.

    Refresh Cycle: None, Dynamic via AutoCAD updates

    Channelization data consists of the following layers:
    1. Vertical Elements
    2. Lane Widths
    3. Panel Markings
    4. Longitudinal Markings
    5. Transverse Markings
    6. Legend and Symbols
    7. General Background

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LangleyCityGIS (2021). Transportation Network (AutoCAD .dwg) [Dataset]. https://data-langleycity.opendata.arcgis.com/content/86073e3185444b1f86d0fe0d7edc9b33

Transportation Network (AutoCAD .dwg)

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Dataset updated
Mar 6, 2021
Dataset authored and provided by
LangleyCityGIS
License

https://langleycity.ca/open-data-licensehttps://langleycity.ca/open-data-license

Description

This CAD (.dwg) package, (last updated September 25, 2024), contains all the layers within the Transportation Network group. The City of Langley has compiled all the Transportation Network layers in one AutoCAD (.dwg) file.CAD layers:RoadsSidewalksRailwayMediansBridgesDisaster Response Routes

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