Does anyone know where to download a shapefile containing the locations of US interstate and highway exits?
closed as off-topic by Jochen Schwarze, Kadir Şahbaz, csk, user2856, ArMoraer Aug 22 '18 at 8:47
This question appears to be off-topic. The users who voted to close gave this specific reason:
- "Questions relating to general IT or with no clear GIS component, are off-topic here but can be researched/asked at Stack Overflow (software development), Super User (computing hardware and software), Database Administrators (relational databases) and other SE sites" – Kadir Şahbaz, csk, user2856, ArMoraer
I might suggest using OpenStreetMap and the highway = motor_junction tag/value pair.
From Overpass Turbo, use the wizard to build and run a query using that combination, and you'll find you get a decent result set:
You can either export that result to GeoJSON (or other formats), or use the query in QGIS to download the data directly to your desktop.
One source might be the census: https://www.census.gov/cgi-bin/geo/shapefiles/index.php?year=2017&layergroup=Roads