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Freight Toolkit

CMAP regional freight dashboard · UIC-UTC × FTA FERSC

interactive demo
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about

An interactive geospatial dashboard for freight data analysis across the 7-county Chicago Metropolitan Agency for Planning (CMAP) region. Built for the UIC Urban Transportation Center under the Federal Transit Administration's Freight, Equity, Resilience, Safety and Climate (FERSC) project. Pick any of 285+ municipalities and drill into three levels — truck traffic (AADT, HCV share, NHFN), land use (CMAP 2020 LUI parcels clipped server-side to municipality boundaries), and crash impacts (IDOT 2024 records, noise index polygons, EMME emissions stacked as 3D layers).

what it does
  • 01Three-tier freight analysis — AADT + truck routes, CMAP LUI land use, IDOT crash + noise + EMME emissions
  • 02Side-by-side comparison of municipalities against county averages and regional medians
  • 03Server-side polygon clipping via Shapely — parcels never bleed past municipality boundaries on the client
  • 04Three-layer GeoJSON cache — in-memory Map (5 min) → IndexedDB (24 h) → network · streaming proxy for 28 MB payloads
  • 05Graceful upstream degradation — empty FeatureCollection instead of 500 when ArcGIS is unreachable
  • 06Pre-rendered crash density PNG tiles + dynamic emissions legend scaled to municipality quantile range
  • 07RHEL 9 production deployment with nginx TLS termination, gzip, rate limiting, and tuned Postgres
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