Global Roads Open Access Data Set, Version 1 (gROADSv1)

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.

Data and Resources

Additional Info

Field Value
Maintainer undefined
Last Updated July 17, 2025, 15:07 (UTC)
Created April 23, 2025, 22:43 (UTC)
accessLevel public
bureauCode {026:00}
catalog_@context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_@id https://data.nasa.gov/data.json
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
citation Center for International Earth Science Information Network - CIESIN - Columbia University, and Information Technology Outreach Services - ITOS - University of Georgia. 2013-05-16. Global Roads Open Access Data Set, Version 1 (gROADSv1). Version 1.00. Palisades, NY. Archived by National Aeronautics and Space Administration, U.S. Government, NASA Socioeconomic Data and Applications Center (SEDAC). https://doi.org/10.7927/H4VD6WCT. https://doi.org/10.7927/H4VD6WCT.
creator Center for International Earth Science Information Network - CIESIN - Columbia University, and Information Technology Outreach Services - ITOS - University of Georgia
graphic-preview-description Maps Download Page
graphic-preview-file https://sedac.ciesin.columbia.edu/data/set/groads-global-roads-open-access-v1/maps
harvest_object_id 3b7f1cc3-cfcc-4c52-a4ff-cf2fadc5bf33
harvest_source_id 61638e72-b36c-4866-9d28-551a3062f158
harvest_source_title DNG Legacy Data
identifier C1000000202-SEDAC
issued 2013-05-16
language {en-US}
metadata_type geospatial
modified 2013-05-16
programCode {026:001}
publisher SEDAC
references {https://doi.org/10.7927/H4X63JTX}
release-place Palisades, NY
resource-type Dataset
source_datajson_identifier true
source_hash 30672d8249fa17e8aa068b6518fea6cfe16bab90f71599a768ac4be738cd0025
source_schema_version 1.1
spatial -180.0 -55.0 180.0 90.0
temporal 1980-01-01T00:00:00Z/2010-12-31T00:00:00Z
theme {GROADS,geospatial}