AUTOMATED SPEED ENFORCEMENT
Calculation Audit Trail
Corridor
Corridor Name
Indiana Toll Road (East)
Gantry A
South Bend Gantry
Gantry B
Elkhart Gantry
Surveyed Distance
11.0 mi
Enforcement
Posted Limit
70 mph
Active Threshold
80 mph (posted + 10)
Subject Vehicle
Plate (Synthetic)
DEMO-1680
Vehicle Class
Sedan
Read 1 — Gantry A
Gantry
South Bend Gantry
Location
I-80/90 westbound near South Bend
Coordinates
41.6800, -86.1800
Timestamp
2026-09-08T19:19:51.318
Plate Read Confidence
89.2%
Read 2 — Gantry B
Gantry
Elkhart Gantry
Location
I-80/90 eastbound near Elkhart
Coordinates
41.6800, -85.9700
Timestamp
2026-09-08T19:27:53.249
Plate Read Confidence
98.2%
Time-Over-Distance Calculation
Surveyed Distance
11.0 mi
Elapsed Time
08:01.931 (MM:SS.mmm)
Calculated Avg Speed
82.2 mph
Posted Limit Delta
+12.2 mph
Threshold Check
Active Threshold
80 mph
Result
EXCEEDED
Magnitude over Threshold
+2.2 mph
Edge Case Checks
Inferred Stop Between Gantries
None
Plate Read Confidence A ≥ 95%
FAIL
(89.2%)
Plate Read Confidence B ≥ 95%
PASS
(98.2%)
Timestamp Anomaly Check
PASS
Confidence Score
93.7
/ 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
Paid
Date Paid
2026-08-31 22:43:10
Payment Method
Online
Fine Amount
$150.00
Reviewer
Reviewer
Pending review