topic Heat Map using Attribute Data in ArcGIS Pro Questions

Heat Map using Attribute Data

WyattGerber — Tue, 24 Jun 2025 19:45:31 GMT

I am trying to visualize data I have via a Heat Map. I have a layer containing 364 points evenly spread out along a road, with each point representing a mile marker and the total number of crashes that happened at each mile marker in the attribute table.

I've looked online and can't quite figure out if there's a way to create a Heat Map of the data using the total number of crashes field in the attribute table as the signifier of the density, rather than the location of those evenly spread out mile markers.

Re: Heat Map using Attribute Data

BobBooth1 — Fri, 27 Jun 2025 14:08:56 GMT

You could use a spatial join to get the point values onto the line segments. Then symbolize the line segments using a heat-map-like color ramp.

It might be necessary to split the line into segments first.

This would be one way:

https://pro.arcgis.com/en/pro-app/latest/help/editing/divide-a-polyline-by-a-value.htm

You could also buffer the mile markers by half a mile and use the buffer polygons to split up the lines.