1. ANB20(3) Surrogate Measures of Safety 88 th Annual TRB Meeting January 13, 2009 Washington, D.C.

2. Meeting Agenda 1.Opening remarks – A. Tarko (5 min) 2.Introduction of participants (5 min) 3.Approval of the 2008 meeting minutes and the Subcommittee’s scope and goals (5 min) 4.TRB Annual Meeting update - Rick Cunard (5 min) 5.Updates from liaisons with other TRB groups (15 min) a.Ken Campbell - SHRPII b.Bruce Robinson - ANB25T c.Jim Bonneson – ANB25T(7) d.Mark Robinson - ANB10 e.Simon Washington - ABJ80 f.Salvatore Cafiso – AFB10 g.Steve Shelby – AHB25 6.Current activities (30) a.Subcommittee’s website – John Hourdos b.White paper – summary of revisions – A. Tarko c.Research need statements - All 7.Opportunities (15 min) a.Recent FHWA Workshop on Future Directions in Crash Data Modeling, November, 2008 – J. Bonneson b.Oncoming conferences Road Safety and Simulation, Paris, 2009 Geometric Design, Valencia, 2010 Session at the TRB Annual Meeting (2011) 8.Presentations (20 min) a.Traffic Conflict Techniques for U-Turn Intersections and Pedestrian Crossings, Salvatore Cafiso, University Of Catania (Italy) b.A Probabilistic Framework for Automated Safety Analysis and Other Promising Approaches, Nicolas Saunier, University of British Columbia (Canada) 9.Announcements (5 min) 10.Adjourn

3. 1.Opening remarks – A. Tarko 2.Introduction of participants – Signup sheets 3.Approval of the 2008 meeting minutes and the Subcommittee’s scope and goals Subcommittee’s name: ANB20(3) Surrogate Measures of Safety Subcommittee The Subcommittee’s goal is to stimulate research on surrogate measures of safety and their validation through field measurements, computer simulation, and driving simulators. A strong emphasis is put on a scientific rigor of the research and validity of the results. The Subcommittee will stimulate an interest in surrogate measures of safety and their use through development of synthesis of existing knowledge and available methods, development of guidelines, organization of workshops and special conference sessions, and sharing information at national and international levels.

4. 5.Updates from liaisons with other TRB groups a.Ken Campbell - SHRPII b.Bruce Robinson - ANB25T c.Jim Bonneson – ANB25T(7) d.Mark Robinson - ANB10 e.Simon Washington - ABJ80 f.Salvatore Cafiso – AFB10 g.Steve Shelby – AHB25

5. 6.Current activities a.Subcommittee’s website – John Hourdos b.White paper – summary of revisions – A. Tarko -Reorganized structure -Improved and expanded text - Revised section on the Extreme Value method -Added section inspired by SHRP2 -What is a surrogate measure of safety? c.Research need statements – All Short written statements of topics suggested for research

6. What is a surrogate measure of safety? Crash Frequency or Severity Surrogate Measure Surrogate Outcome Factors Safety Factors Safety Improvements

7. What is a surrogate measure of safety? Crash Frequency and Severity Driver Reaction Time Limited Visibility (weather) Speed Enforcement Traffic Volume Coefficient of Friction Design Uniformity

8. What is a surrogate measure of safety? Crash Frequency Traffic Conflicts (TTC-based) Limited Visibility (weather) Traffic Volume Design Uniformity Speed Enforcement Coefficient of Friction

9. What is a surrogate measure of safety? Crash Frequency Traffic Conflicts (PET-based) Limited Visibility (weather) Traffic Volume Design Uniformity Speed Enforcement Coefficient of Friction BACK

10. 7.Opportunities a.Recent FHWA Workshop on Future Directions in Crash Data Modeling, November, 2008 – J. Bonneson b.Oncoming conferences Road Safety and Simulation, Paris, 2009 Geometric Design, Valencia, 2010 Session at the TRB Annual Meeting, 2011

11. 8.Presentations a.Traffic Conflict Techniques for U-Turn Intersections and Pedestrian Crossings, Salvatore Cafiso, University of Catania (Italy) b.A Probabilistic Framework for Automated Safety Analysis and Other Promising Approaches, Nicolas Saunier, University of British Columbia (Canada) 9.Announcements 10.Adjourn

12. Thank you