South Dakota — Crash Hotspots × Lamar Avails

Where SD accidents cluster vs. the available Lamar boards in Rapid City & Sioux Falls.

Crashes (2021–26, geocoded)–

Available Lamar boards–

Top board — crashes ≤1.5mi–

Metro

Accident heatmap Crash hotspots (top cells) Static boards Digital boards

Crash-exposure radius: 1.5 mi Crashes within this distance of a board = its “eyeballs” proxy.

Static board (avail)

Digital board (avail)

Crash hotspot cell

Board size ∝ weekly impressions · hotspot size ∝ crashes.