01Collision MapHeatmap + point map with severity & VRU filters
Crash Type
Severity
Involvement
Period
Legend
Fatal
Severe Injury
Visible Injury
VRU Involved
02Top Hotspot IntersectionsRanked by total crash volume
Top 15 Intersections — Total Crashes · KSI · VRU · Broadside
Citywide KSI baseline: 25.0%
| # | Intersection ↕ | Total Crashes ↓ | KSI ↕ | KSI Rate ↕ | VRU Share ↕ | Broadside % ↕ | Flags |
|---|
03Silent HotspotsHigh severity · low volume · invisible to standard rankings
15 identified
15 silent high-severity intersections identified. These locations are invisible in traditional volume-based rankings but account for disproportionate KSI outcomes. SS4A methodology weights severity to surface hidden risks. Average KSI rate: 54% vs 25.0% citywide.
Ranked by KSI Rate (min. 5 crashes, not in top-20 by volume)
Avg KSI: 54% · 2.16× baseline
#
Intersection
Crashes
KSI Rate
Amplification
VRU %
Broadside %
Fatal
04Corridor Risk DistributionKSI rates · severity clusters · fatal locations
AI Summary: Clayton Rd leads with 7 fatal collisions and a 32.1% KSI rate — the top corridor for safety improvements. Willow Pass Rd (5 fatals, 28.4%) and Concord Blvd's 42% broadside rate (1.2× citywide avg) indicate distinct risk profiles requiring targeted countermeasures.
Corridor KSI Rates (Top 10)Baseline 25.0%
Severity Clusters
Fatal Locations
54
fatal collisions · 56 deaths
64.8% dark conditions
44.4% alcohol-involved
42.6% pedestrian-involved
Top: Clayton Rd (7), Willow Pass (5)
44.4% alcohol-involved
42.6% pedestrian-involved
Top: Clayton Rd (7), Willow Pass (5)
VRU Hotspots
1.7×
disproportionality ratio
VRU = 30.2% of volume
VRU = 51.8% of fatalities
VRU KSI: 35.8% vs 20.4% non-VRU
29 VRU fatalities total
VRU = 51.8% of fatalities
VRU KSI: 35.8% vs 20.4% non-VRU
29 VRU fatalities total
Hit-and-Run VRU Bias
2×
more likely to flee VRU crash
H&R VRU rate: 56.5%
Non-H&R VRU rate: 28.0%
31 pedestrian hit-and-runs
Pedestrian ped KSI: 46.4%
Non-H&R VRU rate: 28.0%
31 pedestrian hit-and-runs
Pedestrian ped KSI: 46.4%