Identification_Information: Citation: Citation_Information: Originator: Center for International Earth Science Information Network - CIESIN - Columbia University, and Information Technology Outreach Services - ITOS - University of Georgia Publication_Date: 20130516 Title: Global Roads Open Access Data Set, Version 1 (gROADSv1) Edition: 1.00 Geospatial_Data_Presentation_Form: file geodatabase, vector Publication_Information: Publication_Place: Palisades, NY Publisher: NASA Socioeconomic Data and Applications Center (SEDAC) Online_Linkage: https://doi.org/10.7927/H4VD6WCT Description: Abstract: The Global Roads Open Access Data Set, Version 1 (gROADSv1) was developed under the auspices of the CODATA Global Roads Data Development Task Group. The data set combines the best available roads data by country into a global roads coverage, using the UN Spatial Data Infrastructure Transport (UNSDI-T) version 2 as a common data model. All country road networks have been joined topologically at the borders, and many countries have been edited for internal topology. Source data for each country are provided in the documentation, and users are encouraged to refer to the readme file for use constraints that apply to a small number of countries. Because the data are compiled from multiple sources, the date range for road network representations ranges from the 1980s to 2010 depending on the country (most countries have no confirmed date), and spatial accuracy varies. The baseline global data set was compiled by the Information Technology Outreach Services (ITOS) of the University of Georgia. Updated data for 27 countries and 6 smaller geographic entities were assembled by Columbia University's Center for International Earth Science Information Network (CIESIN), with a focus largely on developing countries with the poorest data coverage. Purpose: To provide an open access, well documented global data set of roads between settlements using a consistent data model (UNSDI-T v.2) which is, to the extent possible, topologically integrated. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 19800101 Ending_Date: 20101231 Currentness_Reference: publication date Status: Progress: Complete Maintenance_and_Update_Frequency: As needed Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -180.000000 East_Bounding_Coordinate: 180.000000 North_Bounding_Coordinate: 90.000000 South_Bounding_Coordinate: -55.000000 Keywords: Theme: Theme_Keyword_Thesaurus: SEDAC Theme Theme_Keyword: Agriculture Theme_Keyword: Conservation Theme_Keyword: Hazards Theme_Keyword: Infrastructure Theme_Keyword: Poverty Theme_Keyword: Urban Theme: Theme_Keyword_Thesaurus: Data Granularity Theme_Keyword: Country Theme: Theme_Keyword_Thesaurus: ISO Topic Theme_Keyword: Geoscientific Information Theme: Theme_Keyword_Thesaurus: GCMD Science Keywords, Version 8.6 Theme_Keyword: EARTH SCIENCE > HUMAN DIMENSIONS > INFRASTRUCTURE Place: Place_Keyword_Thesaurus: CIESIN Location Terms, Version 3.1 Place_Keyword: Africa Place_Keyword: Asia Place_Keyword: Europe Place_Keyword: North America Place_Keyword: Oceania Place_Keyword: South America Access_Constraints: None Use_Constraints: Users may use and redistribute these data without explicit written permission from CIESIN or Information Technology Outreach Services (ITOS)/University of Georgia, with the exception of roads data associated with countries that are listed in the data documentation as requiring additional credits or holding special restrictions. Users are advised to consult the data documentation for further information and to obtain necessary permissions or adhere to relevant restrictions that apply to each of those data sets. Point_of_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: NASA Socioeconomic Data and Applications Center (SEDAC) Contact_Address: Address_Type: mailing and physical address Address: CIESIN, Columbia University, 61 Route 9W, P.O. Box 1000 City: Palisades State_or_Province: New York Postal_Code: 10964 Country: United States Contact_Voice_Telephone: +1 845-365-8920 Contact_Facsimile_Telephone: +1 845-365-8922 Contact_Electronic_Mail_Address: ciesin.info@ciesin.columbia.edu Browse_Graphic: Browse_Graphic_File_Name: https://sedac.ciesin.columbia.edu/downloads/maps/groads/groads-global-roads-open-access-v1/groads-v1-global-thumbnail.jpg Browse_Graphic_File_Description: Global Roads Open Access Data Set, v1 Browse_Graphic_File_Type: JPEG Cross_Reference: Citation_Information: Originator: Committee on Data for Science and Technology - CODATA - Global Roads Data Development Working Group, and Center for International Earth Science Information Network - CIESIN - Columbia University Publication_Date: 20090930 Title: CODATA Catalog of Roads Data Sets, Version 1 Edition: 1.00 Geospatial_Data_Presentation_Form: tabular Publication_Information: Publication_Place: Palisades, NY Publisher: NASA Socioeconomic Data and Applications Center (SEDAC) Online_Linkage: https://doi.org/10.7927/H4X63JTX Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Vector Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: NASA Socioeconomic Data and Applications Center (SEDAC) Contact_Address: Address_Type: mailing and physical address Address: CIESIN, Columbia University, 61 Route 9W, P.O. Box 1000 City: Palisades State_or_Province: New York Postal_Code: 10964 Country: United States Contact_Voice_Telephone: +1 845-365-8920 Contact_Facsimile_Telephone: +1 845-365-8922 Contact_Electronic_Mail_Address: ciesin.info@ciesin.columbia.edu Resource_Description: CIESIN_SEDAC_GROADS_V1 Distribution_Liability: CIESIN follows procedures designed to ensure that data disseminated by CIESIN are of reasonable quality. If, despite these procedures, users encounter apparent errors or misstatements in the data, they should contact SEDAC User Services at +1 845-365-8920 or via email at ciesin.info@ciesin.columbia.edu. Neither CIESIN nor NASA verifies or guarantees the accuracy, reliability, or completeness of any data provided. CIESIN provides this data without warranty of any kind whatsoever, either expressed or implied. CIESIN shall not be liable for incidental, consequential, or special damages arising out of the use of any data provided by CIESIN. Standard_Order_Process: Fees: 0 Ordering_Instructions: The data in Esri Geodatabase (.gdb), and Esri Shapefile (.shp) formats; and the maps in Portable Document Format (.pdf), and Portable Network Graphics (.png) formats are available from the NASA Socioeconomic Data and Applications Center (SEDAC). Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: Shapefile File_Decompression_Technique: Unzip Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://sedac.ciesin.columbia.edu/data/set/groads-global-roads-open-access-v1/data-download Access_Instructions: Data accessible via the data set landing page. Digital_Form: Digital_Transfer_Information: Format_Name: Geodatabase File_Decompression_Technique: Unzip Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://sedac.ciesin.columbia.edu/data/set/groads-global-roads-open-access-v1/data-download Access_Instructions: Data accessible via the data set landing page. Digital_Form: Digital_Transfer_Information: Format_Name: PDF Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://sedac.ciesin.columbia.edu/data/set/groads-global-roads-open-access-v1/maps Access_Instructions: Maps accessible via the data set landing page. Digital_Form: Digital_Transfer_Information: Format_Name: PNG Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://sedac.ciesin.columbia.edu/data/set/groads-global-roads-open-access-v1/maps Access_Instructions: Maps accessible via the data set landing page. Available_Time_Period: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20130516 Ending_Date: Present Metadata_Reference_Information: Metadata_Date: 20121012 Metadata_Review_Date: 20220831 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: Center for International Earth Science Information Network (CIESIN) Metadata Administration Contact_Address: Address_Type: mailing and physical address Address: CIESIN, Columbia University, 61 Route 9W, P.O. Box 1000 City: Palisades State_or_Province: New York Postal_Code: 10964 Country: United States Contact_Voice_Telephone: +1 845-365-8988 Contact_Facsimile_Telephone: +1 845-365-8922 Contact_Electronic_Mail_Address: metadata@ciesin.columbia.edu Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Time_Convention: local time