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Pedestrian and Bicycle Safety Analysis Tool

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Breakout Session 6: Protecting our Vulnerable Users
2015 Traffic Safety Conference
by Joan Hudson, Associate Research Engineer, Texas A&M Transportation Institute

Published in: Data & Analytics
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Pedestrian and Bicycle Safety Analysis Tool

  1. 1. Presented by: Joan G. Hudson, P.E. Texas A&M Transportation Institute Texas Traffic Safety Conference June 9, 2015 PEDESTRIAN AND BICYCLE CRASH ANALYSIS TOOL (PBCAT)
  2. 2.  Concerns about pedestrian/bicyclist safety  TxDOT CRIS  3 files: crash, person, unit  Lacks details for ped/bike crashes  Crash reports acquired  Entered into PBCAT  2007-2014 database  K=fatal, A=incapacitating, B=non-incapacitating  Reported crashes BACKGROUND
  3. 3. AUSTIN DISTRICT REPORTED KAB PEDESTRIAN AND BICYCLE CRASHES 0 100 200 300 400 500 600 700 2007 2008 2009 2010 2011 2012 2013 2014 Pedestrian KAB Crashes Bicycle KAB Crashes Total Pedestrian and Bicycle KAB Crashes
  4. 4.  CRIS doesn’t have details  Circumstance of the crash–like walking along or crossing roadway  Pedestrian action at the time of the crash – like dart out, multiple threat  Presence of facilities – like sidewalks, shoulders  Position description – where crash occurred like in the crosswalk  Land use surrounding crash  Recommended in FHWA documents WHY USE PBCAT?
  5. 5. PBCAT DATA ENTRY
  6. 6. GOOGLE EARTH
  7. 7. INITIAL POSITION
  8. 8. PEDESTRIAN CRASH LOCATION
  9. 9. BICYCLE CRASH LOCATION
  10. 10. EXAMPLES OF PEDESTRIAN CRASH TYPES
  11. 11. EXAMPLES OF BICYCLE CRASH TYPES
  12. 12. CIRCUMSTANCES OF PEDESTRIAN CRASH
  13. 13. CIRCUMSTANCES OF BICYCLE CRASH
  14. 14. Pedestrian Crashes Austin, Texas 2010-2014
  15. 15. Bicycle Crashes Austin, Texas 2010-2014
  16. 16. PEDESTRIAN CRASH FAULT
  17. 17. BICYCLE CRASHES BY FAULT 0% 10% 20% 30% 40% 50% 60% 70% 2007 2008 2009 2010 2011 2012 2013 2014 Bicyclist at Fault Motorist at Fault Both at Fault Neither at Fault
  18. 18. CRASH LOCATION DESCRIPTION PEDESTRIAN CRASHES 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 2007 2008 2009 2010 2011 2012 2013 2014 Non-Intersection Non-roadway Intersection or Intersection-Related
  19. 19. CRASH LOCATION DESCRIPTION BICYCLE CRASHES 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 2007 2008 2009 2010 2011 2012 2013 2014 Non-intersection Non-roadway Intersection or Intersection Related
  20. 20. CRASH CIRCUMSTANCES PEDESTRIAN CRASHES 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 2007 2008 2009 2010 2011 2012 2013 2014 Motorist Turn/Merge - Other/Unknown Motorist Right Turn on Red - Perpendicular Paths Motorist Right Turn - Perpendicular Paths Motorist Right Turn on Red - Perpendicular Paths Motorist Right Turn - Parallel Paths Motorist Left Turn - Perpendicular Paths Motorist Left Turn - Parallel Paths Motorist Failed to Yield
  21. 21. CRASH CIRCUMSTANCES BICYCLE CRASHES 0% 10% 20% 30% 40% 50% 60% 70% 2007 2008 2009 2010 2011 2012 2013 2014 Motorist Failed to Yield - Sign-Controlled Intersection Motorist Overtaking Bicyclist Motorist Right Turn/Merge Motorist Failed to Yield - Midblock Motorist Left Turn/Merge Motorist Failed to Yield - Signalized Intersection
  22. 22. PEDESTRIAN POSITION DESCRIPTION 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 2007 2008 2009 2010 2011 2012 2013 2014 Other / Unknown Unpaved Right-of-Way Intersection proper Driveway / Alley Crosswalk area Travel Lane Non-roadway - Parking lot / Other Paved Shoulder / Bike Lane / Parking Lane Sidewalk / Shared Use Path / Driveway Crossing
  23. 23. SPEED LIMIT – PEDESTRIAN CRASHES 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 2007 2008 2009 2010 2011 2012 2013 2014 Over 75 mph 66-75 mph 56-65 mph 46-55 mph 36-45 mph 26-35 mph 16-25 mph 0-15 mph
  24. 24. BICYCLE CRASHES BY BICYCLIST INITIAL POSITION 0% 10% 20% 30% 40% 50% 60% 70% 2007 2008 2009 2010 2011 2012 2013 2014 Bike Lane / Paved Shoulder Driveway / Alley Multi-use Path Sidewalk / Crosswalk/ Driveway Crossing Travel Lane Non-roadway
  25. 25. BICYCLE FACILITY PRESENCE 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 2007 2008 2009 2010 2011 2012 2013 2014 Combined Pkg/Bike Lane Paved Shoulder Bicycle Lane Wide Curb Lane Not Applicable
  26. 26.  PBCAT is good:  Crash typing  Crash circumstances  Existing conditions  Allows customization of the categories  Need to consider:  Subjectivity involved  Add what you don’t get from your current database (i.e. CRIS) to reduce data entry time LESSONS LEARNED
  27. 27.  More QA/QC  Use the 2007-2014 data for the crash prediction tool  Make data results available for area partners NEXT STEPS
  28. 28.  Joan G. Hudson, P.E., j-hudson@tamu.edu 512-407-1112  Boya Dai, AICP b-dai@tti.tamu.edu 512-407-1168 CONTACT INFORMATION

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