Global Roads Open Access Data Set (gROADS v1 - CIESIN) IN PROGRESS

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.

Simple

Date ( Publication )
2013-01-01T00:00:00
Presentation form
Digital map
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.
Status
Completed
Point of contact
Center for International Earth Science Information Network - CIESIN - Columbia University - Center for International Earth Science Information Network - CIESIN - Columbia University

Maintenance and update frequency
Not planned
Keywords ( Theme )
  • GRID core datasets
  • global
  • street
  • road
  • transportation
  • Network
Keywords ( Place )
  • World
Access constraints
License
Use constraints
License
Other 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.
Spatial representation type
Vector
Denominator
10000000
Metadata language
eng
Character set
UTF8
Topic category
  • Transportation
Begin date
2000
End date
2020
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Reference system identifier
WGS 1984
OnLine resource
grid_data_core:gpw-v4-population-density-adjusted-to-2015-unwpp-country-totals_2015 ( OGC:WMS )
OnLine resource
gROADS ( WWW:LINK-1.0-http--link )

Supplementary Info

OnLine resource
gpw-v4-2000 ( WWW:LINK-1.0-http--link )

Data download (Geotiff -Zip)

OnLine resource
gpw-v4-2005 ( WWW:LINK-1.0-http--link )

Data download (Geotiff - Zip)

OnLine resource
gpw-v4-2010 ( WWW:LINK-1.0-http--link )

Data download (Geotiff - Zip)

OnLine resource
gpw-v4-2015 ( WWW:LINK-1.0-http--link )

Data download (Geotiff - Zip)

OnLine resource
gpw-v4-2020 ( WWW:LINK-1.0-http--link )

Data download (Geotiff - Zip)

Hierarchy level
Dataset

Metadata

File identifier
22d523ec-d606-44bb-a0f7-52a2ab324db2 XML
Metadata language
eng
Character set
UTF8
Date stamp
2017-05-02T08:30:51
Metadata standard name
ISO 19115:2003/19139
Metadata standard version
1.0
Point of contact
UNEP/GRID-Geneva - Andrea de Bono

 
 

Overviews

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Keywords

GRID core datasets Network global road street transportation

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