DATA COLLECTION

INRIX CORRIDOR SPEEDS · IDOT GIS CRASHES · 2019 / 2024 / 2025

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5:00a

65+ 55-65 40-55 25-40 15-25 <15

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1.0× Weather Crashes

K A B C PDO

5:00 AM

65+ 55-65 40-55 25-40 15-25 <15

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I-74 Intersection Count Sites · Champaign-Urbana

PendingShort-term TMCs & ATR volumes will stream in from S3 once collected

Cluster Analysis — Representative Days (Tue-Thu)

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5:00a

65+ 55-65 40-55 25-40 15-25 <15

5:00 AM

65+ 55-65 40-55 25-40 15-25 <15

Weather Summary

NCEI Local Climatological Data — station KCMI (Willard Airport, Savoy IL)

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Data Inventory & Status

FHWA TAT III (HOP-18-036) data requirements — what we have, what's missing, what to request next.

I-74 Phase 1 Traffic

Corridor Summary Maps · I-74 Champaign-Urbana

Key Takeaways

Crashes

Weather

Operations

Eastbound · I-57 → Rd 2000 E

Westbound · Rd 2000 E → I-57

Crash Severity (KABCO) K Fatal A Serious B Minor C Possible PDO