Proof of concept.This is an unofficial demo built by Datopian from the City of Newton's public data. The official portal is newton-open-geo-data-newtonmagis.hub.arcgis.com. Questions or feedback: hello@datopian.com

A PortalJS proof of concept · data from the City of Newton's ArcGIS Hub

Traffic Signs

Traffic signs - Newton, Massachusetts

Records
683
Formats
5
Last updated
May 20, 2025

Download & API

Traffic Signs (CSV)csv
Spreadsheet — attributes, with coordinates for point layers
Download
Traffic Signs (GeoJSON)geojson
GeoJSON — for web maps and GIS tools
Download
Traffic Signs (GeoParquet)geoparquet
Columnar — query with DuckDB / SQL
Download
Traffic Signs (map tiles)pmtiles
Vector tiles — embed in a map
Download
Live ArcGIS layer (source)arcgis
Download

Rendered from PMTiles, queried in-browser from GeoParquet — no server. How this works

Schema

FieldTypeValues
INT_IDinteger143 to 2,629
Intersectionstring
Signstring2 values: STOP (677), YIELD (6)