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I'm looking for a layer with every road in the state of Ohio in order to create drive-time polygons. I'm not familiar with Ohio data sources. Could anyone point me in the direction of a shapefile with all roads in Ohio, or even all roads in the Cleveland area?

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The US Census Bureau is a source of this data and may be found here. Just select Roads and then Ohio, and road type and you will be able to download the shapefiles.

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  • The TIGER/line files work well, and openstreetmap.org is a good other resource (I believe they've imported the TIGER files).
    – user3856
    Jun 16, 2017 at 14:19
  • My recollection is the OSM for the United States is originated from the original 2005 release of the Census Bureau's TIGER files and has been crowd-sourcing the improvement of that initial template ever since.
    – Kotebiya
    Jun 18, 2017 at 19:34
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The state government provides a dataset with all roads, and even includes speed limit as an attribute: https://gis.dot.state.oh.us/tims/Data/Download

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If the census data is too old, you might be able to fill in from the state's resources. http://www.dot.state.oh.us/districts/D01/PlanningPrograms/gis/Pages/default.aspx

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