[postgis-users] Calculating driving distance/times

James Keener jim at jimkeener.com
Mon Jan 28 13:25:31 PST 2019

I actually just finished talking about this within the context of a
transit stop's walkshed.


I used PostgreSQL + postGIS + pg-routing to do analysis and QGIS to do
the visualization.

Hop that helps some!

On 1/28/19, Anthony DeBarros <adebarros at gmail.com> wrote:
> Hi, everyone. Longtime lurker, first-time poster here ...
> Let's say I have a collection of several thousand U.S. locations in the
> U.S. geocoded by lat/long.
> I'd like to perform an analysis that lets me visualize places in the U.S.
> that have none of these locations within a certain driving distance. For
> example, if I had a collection of locations of fast-food restaurants, I
> would like to show all the places in the U.S. that have no fast-food within
> 100 miles.
> Are there tools PostGIS, QGIS, others or methodologies you'd recommend?
> Thanks,
> Anthony

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