Detector Data Quality Control -...

NATMEC 2012Dallas, Texas

Texas Department of TransportationAustin District 1

Transportation OperationsJune 6, 2012

Detector DataDetector DataQuality ControlQuality Control

TxDOTTxDOTAustin DistrictAustin District




• 24 x 7 x 365• 38+ miles CTM (270 planned, some toll)• <9 FTEs (38 planned)• 119 Cameras (>670 planned)• 16 DMSs (277 planned)• 80 LCS Stations (261 signal heads, 1149 planned)• 213 Non-Trap Detector Stations (detectors)• 1625 Trap Detector Stations (>14k planned)• 4 HAR Transmitters (530 AM, 800 AM)




Quality ControlQuality ControlDesign (Specification)Design (Specification)

Construction (Installation & Testing)Construction (Installation & Testing)Operations (Performance Testing)Operations (Performance Testing)

Diligence Diligence




Device Label

Lane/ Lanes Note 22

Loop Num.

LCU Loop LCU

res. Volts

Leak. >100

(Mohm)

Freq. Res. (Hz)

Freq. High (Hz)

Freq. Low (Hz)

Bw = fh-fl (Hz)

Phase (CW)

(CCW)

Loop Lead Note 21

(ft)(m)No. of Turns

Lead in Cable (ft)(m)

Resist. (Ohm)

Resist. Calc. Note

13, 20 (Ohm)

L (uH)

L Calc. Note

14, 20 (uH) Q

Q Calc. Note 15,16

F103N1T 0.33 11T 11T 31 INF 36724 36627 97 42 5 321 2.6 (2.1) 275 253 18.5 24.3F103N2T 0.33 12T 12T 31 INF 37005 36815 190 42 5 321 2.6 (2.1) 272 253 18.4 24.2F103N3T 0.67 13T 13T 31 INF 42311 42116 195 30 4 321 2.5 (2.0) 205 190 17 21.7F103N4T 0.67 14T 14T 31 INF 42474 42283 191 30 4 321 2.5 (2.0) 204 190 16.9 21.7F103N5T 1.00 15T 15T 31 INF 49570 49419 151 18 3 321 2.5 (1.9) 146 140 15.2 18.1F103N6T 1.00 16T 16T 31 INF 49693 49524 169 15 3 100 2.5 0.8 140 (95) 15.2 17.4

E1031N 1.00 8 NT 8 NT 31 INF 44486 44384 102 18 3 467 3.2 (2.6) 179 169 12.8 15.6

S103N1T 0.33 1T 1T 31 INF 45495 45359 136 42 3 441 3.4 (2.6) 173 169 12.6 14.5S103N2T 0.33 2T 2T 31 INF 45579 45405 174 42 3 441 3.2 (2.6) 171 169 12.5 15.2S103N3T 0.67 3T 3T 31 INF 39768 39615 153 30 4 441 3.4 (2.6) 230 214 13.8 16.8S103N4T 0.67 4T 4T 31 INF 39655 39488 167 30 4 441 3.4 (2.6) 231 214 13.9 16.9S103N5T 1.00 5T 5T 31 INF 34882 34695 187 18 5 441 3.6 (2.6) 302 272 15.2 18.3S103N6T 1.00 6T 6T 31 INF 35347 34991 356 18 5 441 3.6 (2.6) 298 272 15.8 18.2

F103S1T 0.33 1T 1T 32 INF 41414 41190 224 42 5 133 1.5 (1.2) 222 215 30 38.3F103S2T 0.33 2T 2T 32 INF 41483 41106 377 42 5 133 1.7 (1.2) 223 215 30.1 33.9F103S3T 0.67 3T 3T 32 INF 49275 48846 429 30 4 133 1.5 1.1 156 153 28 31.9F103S4T 0.67 4T 4T 32 INF 49091 48782 309 30 4 133 1.5 1.1 157 153 25.2 32.1F103S5T 1.00 5T 5T 32 INF 60487 60157 330 18 3 133 1.2 0.9 102 102 22.6 32.1F103S6T 1.00 6T 6T 32 INF 60193 59858 335 18 3 133 1.2 0.9 103 102 22.7 32.3

S103S1T 2.00 11T 11T 32 INF 63959 63417 542 30 3 56 1 0.6 93.4 89 27.8 37.2S103S2T 2.00 12T 12T 32 INF 63787 63390 397 30 3 56 1 0.6 93.4 89 27.8 37.2S103S3T 1.00 13T 13T 32 INF 50966 50623 343 18 4 56 1.2 0.6 148 135 30.6 39.2S103S4T 1.00 14T 14T 32 INF 51453 50954 499 18 4 56 1.2 0.6 146 135 30.4 39.0




SoftwareSoftwareTraffic SurveillanceTraffic Surveillance

Device ControlDevice ControlIncident DetectionIncident Detection

Incident ManagementIncident ManagementReportingReportingAnalysisAnalysis




990830 - IH 0035

0

5

10

15

20

25

30

35

40

45

1 39 77 115

153

191

229

267

305

343

381

419

457

495

533

571

609

647

685

723

761

799

837

875

913

951

989

1027

1065

1103

1141

1179

1217

1255

1293

1331

1369

1407

TIME (min)

Perc

ent

Occupancy




Occupancy

0

5

10

15

20

25

30

35

40

45

50

1 41 81 121

161

201

241

281

321

361

401

441

481

521

561

601

641

681

721

761

801

841

881

921

961

1001

1041

1081

1121

1161

1201

1241

1281

1321

1361

1401

Occupancy




001513N 5/20/2007 through 5/26/2007 22% of SCU data has no error codes313601_B 5/20/2007 through 5/26/2007 53% of SCU data has no error codes

IH 0035 SCU 5/20/2007 through 5/26/2007 0% of SCU data has no error codesLP 0001 SCU 5/20/2007 through 5/26/2007 53% of SCU data has no error codes Comment fieldUS 0183 SCU 5/20/2007 through 5/26/2007 66% of SCU data has no error codes Repairs madeUS 0290 SCU 5/20/2007 through 5/26/2007 74% of SCU data has no error codes

More testing needed

Repairs needed

No detections(All 0)

All invalid data(All -1) SCU Down

No datafiles saved

001513N 10011 Diamondback Trl F1 0% 0% 0% 1% 99%001513N 10012 Diamondback Trl F2 0% 0% 0% 1% 99%001513N 10013 Diamondback Trl F3 8% 0% 0% 1% 89%001513N 10021 Diamondback Trl F1 0% 0% 0% 1% 98%001513N 10022 Diamondback Trl F2 0% 0% 0% 1% 98%001513N 10023 Diamondback Trl F3 100% 0% 0% 1% 0% No problem found 001513N 10031 Diamondback Trl S1 100% 0% 0% 1% 0% Milled001513N 10032 Diamondback Trl S2 100% 0% 0% 1% 0% "001513N 10041 Diamondback Trl S1 100% 0% 0% 1% 0% Milled001513N 10042 Diamondback Trl S2 0% 0% 0% 1% 0% " *********001513N 10827 Middle Fiskville Rd X1 0% 0% 0% 1% 0%001513N 11011 Middle Fiskville Rd F1 0% 0% 0% 1% 99%001513N 11012 Middle Fiskville Rd F2 0% 0% 0% 1% 100%001513N 11013 Middle Fiskville Rd F3 0% 0% 0% 1% 0%

Noerror codes Comments

Overall SCU Detector Error Rates (TxDOT-Austin District)

SCU DET_ID DET_TXT

% of Data with Various Errors

Summary of Detector Error Rates (TxDOT-Austin District)




Future ConcernsFuture ConcernsNew DetectorsNew Detectors

(design, construction, operations)(design, construction, operations)

New SoftwareNew Software(surveillance, reporting, analysis)(surveillance, reporting, analysis)

Diligence Diligence




Brian D. Burk, P.E.Brian D. Burk, P.E.TxDOT Austin DistrictTxDOT Austin District

CTECCCTECC

512512--974974--08990899

[email protected]@txdot.gov

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