1. 1 Bringing Machine Control to California DOT (Caltrans) Construction Projects Kevin Akin, LS Office of Land Surveys

2. 2 Caltrans 22,000 Employees 22,000 Employees Most designs are done in-house Most designs are done in-house Most projects are staked and inspected in-house Most projects are staked and inspected in-house 15,000 centerline lane miles 15,000 centerline lane miles 12,500 Bridges 12,500 Bridges 08/09 budget of 14 Billion 08/09 budget of 14 Billion 36,000,000 +/- People in California 36,000,000 +/- People in California

3. 3 Districts and Regions 12 Districts 12 Districts 2 Regions 2 Regions

4. 4 Earth Quakes

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7. 7 MG History in Caltrans 2001 Vendor Presentations 2001 Vendor Presentations 2001 Contractor Requests 2001 Contractor Requests –Can we have your design model? 2003 Machine Guidance Committee 2003 Machine Guidance Committee 2005 Interim Guidance 2005 Interim Guidance 2006 California Industry Capacity Expansion 2006 California Industry Capacity Expansion 2007 Pilot Projects 2007 Pilot Projects 20?? Road Design Software Change 20?? Road Design Software Change 20?? Create Policy\Implement workflow changes 20?? Create Policy\Implement workflow changes 20?? Full Adoption 20?? Full Adoption

8. 8 Machine Guidance Committee Organizational Issues Organizational Issues –Change Design software limitations Design software limitations Reluctance to provide electronic files Reluctance to provide electronic files Additional Liability Additional Liability Translation issues Translation issues

9. 9 MG Committee Cont. No data to positively show that MG will save money on a Caltrans project No data to positively show that MG will save money on a Caltrans project Technological Overload Technological Overload Information Overload Information Overload

10. 10 Design Product is a Set of 2D Paper Plans Paper plans are the legal document Paper plans are the legal document 3D design files are an intermediate product- not a final product 3D design files are an intermediate product- not a final product Our current software (CAiCE) is not model based it is cross-section based Our current software (CAiCE) is not model based it is cross-section based Additional work is required to create a 3D model Additional work is required to create a 3D model Model/files not required at bid date Model/files not required at bid date

11. 11 Early Project 8-SB-15 15 miles each side of existing Highway

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13. 13 Brawley Bypass Stage 1

14. 14 Interim Guidelines Contract is already awarded Contract is already awarded Existing files- No model available Existing files- No model available Divisions of Construction/Design determine level of Caltrans participation Divisions of Construction/Design determine level of Caltrans participation Participation is not mandatory Participation is not mandatory

15. 15 Suitable MG project? Suitable MG project? Design base on a DTM Design base on a DTM Large amounts of earthwork Large amounts of earthwork Good GPS environment Good GPS environment Electronic files available Electronic files available

16. 16 Not Every Project is Suitable for MG GPS issues GPS issues –Narrow canyons –Tree canopy –Tall buildings Design not based on a full DTM Design not based on a full DTM –Pavement overlay Design difficulties Design difficulties

17. 17 Files Needed to Create Model Original ground DTM Original ground DTM Alignments and profiles Alignments and profiles Cross-sections Cross-sections Contour grading areas Contour grading areas 2D Microstation Cadd files 2D Microstation Cadd files

18. 18 Translation Issues No single data format No single data format Different triangulation algorithms Different triangulation algorithms Data goes through two or three translations Data goes through two or three translations Is there distortion? Is there distortion?

19. 19 Tested Vendor Software Tested Vendor Software Data after vertical line was deleted Data after vertical line was deleted –XML parser problem

20. 20 Legal Issues Added liability Added liability Foolproof waiver of liability? Foolproof waiver of liability? Electronic file security Electronic file security Copyright issues Copyright issues Homeland security Homeland security Electronic file vs. paper plans Electronic file vs. paper plans

21. 21 Stakes for Inspector Will stake projects as normal Will stake projects as normal Construction has to match stakes Construction has to match stakes Surveys staking QA Surveys staking QA

22. 22 Results From MG Projects Contractor wiped out inspectors stakes Contractor wiped out inspectors stakes Increased speed of earth moving Increased speed of earth moving Caltrans Construction RE valued having 3D model for problem solving Caltrans Construction RE valued having 3D model for problem solving Reluctance to give our electronic information Reluctance to give our electronic information Most contractors are now requesting files Most contractors are now requesting files Spotty documentation of results Spotty documentation of results

23. 23 Brawley\Tudor Bypass Pilot Projects Tudor Brawley

24. 24 TudorBrawley

25. 25 Expectations of Pilot Projects Effect of MG on project Effect of MG on project –Time –Money –Rework –? Suggestions for MG workflow Suggestions for MG workflow Document results Document results

26. 26 Full Implementation Management/Organization commitment Management/Organization commitment Build a 3D model for every project Build a 3D model for every project Model included in bid package Model included in bid package Change workflow during Design, Bidding, & Construction Change workflow during Design, Bidding, & Construction Early identification of projects that should not use MG Early identification of projects that should not use MG

27. 27 New Road Design Software-Wish List Design products that are interactive Design products that are interactive –3D model –2D Cad files –Slope Stake notes Export to major formats Export to major formats Translation issues identified and resolved Translation issues identified and resolved

28. 28 3D Models in Bid Package Electronic security Electronic security Liability waivers Liability waivers Copyright protection Copyright protection Assigned responsibility to manage files Assigned responsibility to manage files –Updates/Changes/Etc…

29. 29 Project Control Last through life of project Last through life of project Agree on control to be used Agree on control to be used Mutual GPS calibration at the start of the project Mutual GPS calibration at the start of the project

30. 30 Questions? Contact Information Kevin Akin 916-227-7650kakin@dot.ca.gov 1727 30 th St. MS 35 Sacramento, Ca. 95816