DEMO Synthetic data for North Carolina corridors. Plates beginning with DEMO are fabricated for stakeholder previews. Toggle demo mode off to dismiss.
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Insights

Executive briefing across safety, enforcement, mobility, revenue, and policy

Vehicle passages (30d)
6,319
▼ 24.9%
Violations per 1k passages
8.7
▼ 33.5% all corridors, matched days
illustrative US baseline ~45
Repeat offenders (90d)
10
▼ 10.2% plates with 5+ violations
Revenue at risk
$27,850
unpaid + past-due fines
Speed compliance
62.3%
▲ 14.3% passages at/under limit
illustrative US baseline ~93%
Reliability score
95
▼ 20.2% travel-time consistency · 100 = best
67+ = federally reliable

Safety & Dangerous Driving

HPDOTGOV

Most dangerous corridors

Composite risk index: 85th-percentile speed over limit × violation rate × volume

Speeding heatmap

Passages 10+ mph over the limit by hour & day — where and when to deploy patrols (DDACTS)

Speed distribution by corridor

Posted limit vs. measured 85th percentile — the evidence base for speed-limit setting

Extreme speed events

Violations 20+ mph over the limit per day, last 90 days, with period average

Average-speed enforcement on Scotland's A9 cut excessive speeding 97%

Repeat Offenders & Enforcement

HPTPKLEG

Offender concentration

Cumulative share of all violations by worst-first share of plates (90 days)

Top 1% of plates → 4.7% of violations Top 5% → 20.6% Top 10% → 32.5%
NY's Stop Super Speeders Act: drivers with 20+ violations are 5× more likely to cause a serious crash

Repeat offender leaderboard

Worst plates, last 90 days — plates masked for external audiences

PlateViolationsWorst speedCorridorsHistory
DEMO-***7 7 99.0 / 70 mph I-77 ExpressMonroe ExpresswayTriangle Expressway
DEMO-***0 6 96.4 / 70 mph I-77 ExpressMonroe ExpresswayTriangle Expressway
DEMO-***6 6 96.3 / 70 mph I-77 ExpressMonroe ExpresswayTriangle Expressway
DEMO-***7 6 96.1 / 70 mph I-77 ExpressMonroe ExpresswayTriangle Expressway
DEMO-***7 6 92.8 / 70 mph I-77 ExpressMonroe ExpresswayTriangle Expressway
DEMO-***0 6 91.5 / 70 mph I-77 ExpressMonroe ExpresswayTriangle Expressway
DEMO-***9 5 93.6 / 70 mph Triangle Expressway
DEMO-***9 5 92.3 / 70 mph I-77 ExpressMonroe ExpresswayTriangle Expressway

Violations vs. patrol coverage sample data

Violations by hour (real) against current patrol staffing (sample) — the overnight gap

Ghost / unreadable plate rate sample data

Share of passages with failed plate reads, by month

Est. $25,662/month uncollected at current rate
NY audit: ~$7.2M recoverable from better image processing alone

Corridor Performance & Mobility

DOTGOVTPK

Travel-time reliability

Median travel time with 80th–95th percentile band, by hour — direct from gantry timestamps

I-77 Express: LOTTR 1.06 — Reliable Monroe Expressway: LOTTR 1.06 — Reliable Triangle Expressway: LOTTR 1.05 — Reliable

Congestion profile

Average speed by hour — recurring bottleneck windows; single-corridor view shows the posted limit

Origin–destination flows

Entry gantry → exit gantry passages — truck-class O-D feeds DOT freight plans

Traffic volume & seasonality sample data

Daily-average passages per month, passenger vs. commercial, with prior-year overlay

Revenue Integrity & Toll Evasion

TPKLEGGOV

Revenue leakage funnel sample data

Monthly billable transactions → invoiced → collected, with losses by cause

90.0% collected · est. $6,594/month leakage
Industry benchmark: ~94% collected within 150 days (PA Turnpike); ~6% national leakage average

Evasion debt concentration

Outstanding fine debt by plate cohort — concentration is the enforcement story

One NY enforcement stop: 20 vehicle owners held ~60% of unpaid tolls

Out-of-state exposure sample data

Violation debt by registration state (excl. NC) — the case for reciprocity agreements

43% of NY Thruway's $276M unpaid balance was out-of-state

Recovery trend sample data

Monthly recovered revenue with enforcement & policy markers

Policy & Legislative Impact

LEGGOVDOT

Before / after policy evaluation sample data

Violations per 1,000 passages — scenario: Penalty increase — Jan 2026

-30.8% violation rate after policy date
NYC speed cameras: 94% violation decline at camera sites won the program's renewal

Statewide safety scorecard sample data

The 5 federal safety performance measures plus gantry-derived speeding exposure (real)

Fatalities
1421
target 1350
Fatality rate
1.18
target 1.1 /100M VMT
Serious injuries
3894
target 3600
Serious-injury rate
3.24
target 3.0 /100M VMT
Non-motorized
512
target 470 fatal + serious
Speeding exposure real
4.07
target 3.26 % passages 10+ over

District report card sample data

The one-pager a legislator hands to staff

Where the money goes sample data

Fines assessed → collected → fund destinations — defusing the revenue-grab objection

Georgia's Super Speeder law routes its $200 add-on to the state trauma system by statute