Test results for mobile mapping for the Titan system & HDS scanning.

1. Mobile Mapping Validation Allen Nobles, PLS Nobles Consulting Group Tallahassee, Florida 2009 Spar Conference Denver, Colorado Mobile Mapping Validation David J. Ward Business Development Director Terrapoint USA

5. TITAN Elevator is operated from inside the vehicle TITAN in Production 2009 Spar Conference Denver, Colorado Mobile Mapping Validation

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9. Lidar and Linescan Fusion 2009 Spar Conference Denver, Colorado Mobile Mapping Validation

11. Project Site Tallahassee, Florida 2009 Spar Conference Denver, Colorado Mobile Mapping Validation

12. Gaines Street, Tallahassee, Florida 2009 Spar Conference Denver, Colorado Mobile Mapping Validation

16. Intensity Image to Check Alignment of Striping 2009 Spar Conference Denver, Colorado Mobile Mapping Validation

17. Vertical Check Between Drivelines Match to 1-2 cm 2009 Spar Conference Denver, Colorado Mobile Mapping Validation

18. Mobile Mapping Validation 2009 Spar Conference Denver, Colorado Mobile Mapping Validation

19. 2009 Spar Conference Denver, Colorado Mobile Mapping Validation We chose to test the system on a real project. The test project was a completed and approved survey for FDOT using their standard survey practices. A full DTM was provided to FDOT and check cross-sections were used to check the DTM data (QA/QC).

20. 2009 Spar Conference Denver, Colorado Mobile Mapping Validation The project area was later scanned with a HDS scanner.

21. Gaines Street, Tallahassee, Florida 2009 Spar Conference Denver, Colorado Mobile Mapping Validation

22. Gaines Street, Tallahassee, Florida 2009 Spar Conference Denver, Colorado Mobile Mapping Validation

23. Gaines Street, Tallahassee, Florida 2009 Spar Conference Denver, Colorado Mobile Mapping Validation

24. How do you test a mobile scanner? 2009 Spar Conference Denver, Colorado Mobile Mapping Validation How good was the survey control? Is survey point data absolute?

25. How do you test a mobile scanner? 2009 Spar Conference Denver, Colorado Mobile Mapping Validation Typical survey control results for these projects run from 1:40,000 to 1:60,000. Survey data is also adjusted over the total site to remove errors.

26. 2009 Spar Conference Denver, Colorado Mobile Mapping Validation Lowest Flight Altitude 360 feet Negative Scale 1”=60’ Spot Elevation Accuracy +/- 0.05’ The project area was also surveyed using LAMP (Low Altitude Mapping Photography)

28. 2009 Spar Conference Denver, Colorado Mobile Mapping Validation Who is checking who now?

30. Project was scanned using a Leica ScanStation. Each setup was adjusted into the existing ground control. Two Traverses (total length 7,177 feet) Avg. Hor. error = 0.08 feet (1:40,000) Avg. Vertical error = 0.10 feet 2009 Spar Conference Denver, Colorado Mobile Mapping Validation

31. 2009 Spar Conference Denver, Colorado Mobile Mapping Validation Cross-section Points

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43. 2009 Spar Conference Denver, Colorado Mobile Mapping Validation

44. 2009 Spar Conference Denver, Colorado Mobile Mapping Validation HDS Scans Titan Scans

45. 2009 Spar Conference Denver, Colorado Mobile Mapping Validation Titan – HDS Comparison Checkpoints for Horizontal Comparison

46. Titan – HDS Checkpoints for Horizontal Comparison North Sums East Sums Point to Points Distance Sums Δ N -0.0223 0.0379 0.0167 -0.1168 0.0029 0.0134 0.0137 0.1216 -0.0168 0.0643 0.1452 -0.0435 -0.0259 -0.1587 Δ E -0.0023 0.0508 -0.0263 0.2692 0.0849 -0.0286 0.0902 0.1068 0.2463 0.0254 -0.1189 -0.0529 -0.1837 -0.0383 Point CK1 CK2 CK2 CK3 CK4 CK5 CK6 CK7 CK8 CK9 CK10 CK11 CK12 CK13 0.084 DEV-SQ 0.080 STD-DEV 0.204 DEV-SQ 0.125 STD-DEV Δ Distance 0.0224 0.0634 0.0312 0.2934 0.0849 0.0316 0.0912 0.1618 0.2469 0.0691 0.1877 0.0685 0.1855 0.1633 0.147 RMS 0.0852 STD-DEV 0.2934 MAX 0.0224 MIN

48. Questions? Thank You. 2009 Spar Conference Denver, Colorado Mobile Mapping Validation