1. A Systems Approach to Managing Skid Deficient Sites on a Road Network Glenn Foster – Transfield Services Ltd Richard Parsons – Transfield Services Ltd Dr Fritz Jooste – Juno Services Ltd

2. PSMC006 Network

3. Background – PSMC001  PSMC006  Originally contracted to only deal with skid deficient sites with absolute response times  Drove reactive ad-hoc behaviour  NZTA T10:2002 Introduced allowing a proactive holistic asset management approach

4. Holistic Approach – Multiple Data Sets

5. Traditional Field Inspections

7. Result – Late Seals

8. Trigger For Change

9. T-SKAN (Transfield Skid Analyser) Process Training of Inspectors Field Inspections Post Processing

10. Training of Inspectors

12. Field Inspection Training of Inspectors Field Inspections Post Processing

13. Field Inspection

14. SCRIM™ history shown in background Lane plot shows location of Skid Deficient sites SCRIM™ data history and details of selected site Forward Works Programme and surfacing history for treatment length Details of selected crash (from CAS) Symbols representing location and severity of crash history Out-of-Context curve data (shown when curve selected)

15. Guided Site Inspection Site Field Observations Proposed Remedial Works with Reasons Cost Estimate of Remedial Works

16. Post Processing Training of Inspectors Field Inspections Post Processing

17. Action Plan - Export

18. Compliance Reporting

19. NZTA T/10 2010 – going forward “Paper Trail” – User/Date Logging of field considerations for IL Reviews Work Priority

20. T-SKAN Conclusion  Significant time saving in data analysis – both in field and office  Quick programming of works for immediate implementation  Reproducible approach to dealing with skid deficiency throughout network  Transparency of process to the Client