AUTOMATED SPEED ENFORCEMENT
Calculation Audit Trail
Corridor
Corridor Name
Indiana Toll Road (East)
Gantry A
Elkhart Gantry
Gantry B
South Bend Gantry
Surveyed Distance
11.0 mi
Enforcement
Posted Limit
70 mph
Active Threshold
80 mph (posted + 10)
Subject Vehicle
Plate (Synthetic)
DEMO-3957
Vehicle Class
Sedan
Read 1 — Gantry A
Gantry
Elkhart Gantry
Location
I-80/90 eastbound near Elkhart
Coordinates
41.6800, -85.9700
Timestamp
2026-09-09T18:42:14.030
Plate Read Confidence
93.7%
Read 2 — Gantry B
Gantry
South Bend Gantry
Location
I-80/90 westbound near South Bend
Coordinates
41.6800, -86.1800
Timestamp
2026-09-09T18:50:16.462
Plate Read Confidence
98.3%
Time-Over-Distance Calculation
Surveyed Distance
11.0 mi
Elapsed Time
08:02.432 (MM:SS.mmm)
Calculated Avg Speed
82.1 mph
Posted Limit Delta
+12.1 mph
Threshold Check
Active Threshold
80 mph
Result
EXCEEDED
Magnitude over Threshold
+2.1 mph
Edge Case Checks
Inferred Stop Between Gantries
None
Plate Read Confidence A ≥ 95%
FAIL
(93.7%)
Plate Read Confidence B ≥ 95%
PASS
(98.3%)
Timestamp Anomaly Check
PASS
Confidence Score
96.0
/ 100
Methodology: confidence score is the mean of the two plate read confidences, adjusted for any failed edge case check. Reads below 95% trigger a flag for review. Stop-time and timestamp-anomaly failures suppress automatic issuance.
Payment
Status
Past due
Date Paid
not yet paid
Payment Method
Not yet paid
Fine Amount
$150.00
Reviewer
Reviewer
Pending review