57
KSI Total
2015–2025 excl. 2020
14
Fatalities
People killed
263
Visible Injuries
City streets
534
Total Collisions
City streets only
10.7%
KSI Rate
57 / 534
17.6%
Alcohol KSI Rate
vs 9.4% non-alcohol
Annual collision trend by severity
2015–2025 excl. 2020 — gap marks excluded year
Severity breakdown
All city street collisions
Collision type distribution
Count by type
Primary collision factor
Top contributing factors
Collisions by hour of day
Red=late night · Yellow=PM peak
Day of week
Volume by weekday
What vehicle hit
Motor vehicle involved with
High Injury Network Explorer
Sorted by KSI · All years 2015–2025 excl. 2020 · City streets only
Era Comparison
2015–2019 (pre-COVID) vs 2021–2025 (post-COVID) Equal 5-year windows · 2020 excluded · All metrics normalizedKSI rate per year — trend
Blue=2015–19 · Orange=2021–25
Volume per year
Crash count trend by era
Collision type — KSI rate shift
Blue=era A · Orange=era B · Higher = more deadly per crash
Primary factor — volume/year
Is the mix of causes changing?
HIN Corridor Changes: 2015–19 vs 2021–25
The Safety Story: 2015–2019 vs 2021–2025
Equal 5-year periods · 2020 excluded · Stats normalized for fair comparisonFewer Crashes, Far More Deadly
+23.1%
KSI rate rose from 9.66% to 11.89%. Volume fell but each crash is significantly more likely to kill or severely injure. A severity crisis, not a volume crisis.
Broadside: Dominant Collision Type
9.9%
Broadside collisions dominate with a KSI rate of 9.9% (era B, up from 7.8%). Signal and ROW failures at key intersections drive this pattern. Protected LT phasing and LPI are the priority response.
ALHAMBRA AV: Persistent Hotspot
9 → 3 KSI
ALHAMBRA AV is the #1 HIN corridor with 12 total KSI (5 fatal). Remains city's highest-risk corridor.
HIN: Danger Spreading
9 new corridors
9 new corridors emerged in 2021–25 not present in 2015–19. 5 corridors persist across both eras. Systemic citywide programs needed alongside targeted corridors.
Alcohol: Real Progress
24.4% → 10.0%
Alcohol KSI rate fell from 24.4% to 10.0%. Genuine progress — but at 10.0%, alcohol crashes remain 1.9× more deadly than non-alcohol. DUI enforcement must continue.
Motorcycle Fatality Risk
36.4% → 27.8%
Motorcycle KSI rate: 36.4% → 27.8%. 40 crashes, 13 KSI. Late-night weekend concentration amplifies severity — enforcement targeting these windows is essential.
Dark KSI Improving
14.5% → 13.4%
Dark-condition KSI rate improved: 14.5% → 13.4%. 143 dark crashes, 20 KSI. Lighting improvements are working — maintain investment.
Volume vs Severity
58/yr → 49/yr
Crash volume: 58/yr (era A) → 49/yr (era B). Volume fell but KSI rate surged — severity crisis, not a volume crisis.
Top Intersection: MORELLO AV & ARNOLD DR
1 KSI
MORELLO AV & ARNOLD DR — 1 KSI (0 fatal), 6 crashes. Era A: 0 KSI → Era B: 1 KSI. Targeted intersection capital recommended.
AI-Powered Safety Insights
Multivariate patterns · Martinez city streets 2015–2025 (excl. 2020) · Ranked by policy impact
Alcohol Multiplier Effect
1.9×
Alcohol KSI rate: 17.6% vs 9.4% non-alcohol. 15.9% of crashes, 26.3% of KSI.
DUI EnforcementDarkness Amplifies Severity
30.4%
Of pedestrian crashes occur in dark. After-dark ped crashes are 3.2× more likely to be fatal/severe than daytime (28.6% vs 8.9% KSI rate).
Street LightingPedestrian KSI Rate Elevated
14.5%
Pedestrian KSI rate: 14.5% across 69 crashes (10 KSI). 30.4% of ped crashes in dark — LED lighting and RRFB crossings are the priority response.
Ped InfrastructureLate Night KSI Spike
9.5%
KSI rate 0–5 AM is 0.8× higher than midday (12.2%). 0.0% of crashes, concentrated fatal risk window.
High-Severity WindowAlcohol + Dark: Compound Risk
18.0%
Alcohol AND dark: KSI rate hits 18.0% — well above city average of 10.7%. Disproportionate harm from this combination.
Compound RiskMotorcycle Danger Window
32.5%
Motorcycle KSI rate: 32.5% — 3.0× city average. 40 crashes, 13 KSI. Late-night weekend is highest-risk window.
Motorcycle SafetyCollision type × severity heatmap
Darker = higher KSI rate
KSI rate by time of day
When is each crash most likely to be fatal or severe?
Annual KSI vs total collisions
Volume declining but severity rising — the key trend
Top 5 corridors — KSI persistence
Dangerous year after year
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Showing
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KSI
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Fatal
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KSI Rate
Severity
Fatal
Severe
Visible
Pain
SS4A FY2026 Implementation Grant — Project Portfolio
Three plans based on 2021–2025 post-COVID crash data · May 26, 2026 deadline
HSIP Cycle 13 — Project Recommendations
Cross-cycle C8–C12 analysis · Martinez award history · 2021–2025 crash data
$5M–$18M est. portfolio
HSIP Grant Intelligence Module
Synthesized from Cross-Cycle Analysis C8–C12 · Countermeasure Trends · C12 Report & Funded Projects List
$0.78M
Martinez HSIP Won
C12
1
Projects Funded
Prior award cycles
$1.15B
Program Total
1,281 projects C8–C12
$5–18M
C13 Portfolio Target
6 recommendations
Martinez HSIP Application History
C13 Statewide Intelligence
🚀 Rising Countermeasures (C8→C12)
Gaining frequency & funding — prioritize for C13
LPI: 0→33 projects · +33
RRFB/Beacons: 11→57 · +46
Retroreflective Backplates: 1→23 · +22
Class IV Bike Lanes: 14→31 · +17
Raised Medians: 8→19 · +11
📉 Declining Countermeasures
Losing funding share — supplement but don't lead with these
Signal Timing Only: 45→12 · -33
Striping/Delineation Only: 28→9 · -19
Guardrail: 22→8 · -14
Rumble Strips Only: 11→4 · -7
BCR Sweet Spot
$1.5M–$4M
Martinez should target $1.5–3.5M per BCR application. Stack 3+ countermeasures for highest BCR score.
Best Win Strategy
3-CM Stack
C12 winners averaged 3+ countermeasures per application. Prior C12 wins provide competitive positioning.
VRU Pool
119 VRU
69 ped + 50 bike = 23 KSI. Qualifies for VRU Special Rule set-aside.