Pedestrian and Bicycle Safety Analysis Tool
28
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)
-
Upload
texas-am-transportation-institute -
Category
Data & Analytics
-
view
258 -
download
2
Transcript of Pedestrian and Bicycle Safety Analysis Tool
Presented by : J o a n G . H u d s o n , P. E . Texa s A & M Tr a n s p o r t a t ion I n s t i t u te
Texas Traf f ic Safety Conference June 9 , 2015
PEDESTRIAN AND BICYCLE CRASH ANALYSIS TOOL
(PBCAT)
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
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 andBicycle KAB Crashes
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?
PBCAT DATA ENTRY
GOOGLE EARTH
INITIAL POSITION
PEDESTRIAN CRASH LOCATION
BICYCLE CRASH LOCATION
EXAMPLES OF PEDESTRIAN CRASH TYPES
EXAMPLES OF BICYCLE CRASH TYPES
CIRCUMSTANCES OF PEDESTRIAN CRASH
CIRCUMSTANCES OF BICYCLE CRASH
Pedestrian Crashes Austin, Texas 2010-2014
Bicycle Crashes Austin, Texas 2010-2014
PEDESTRIAN CRASH FAULT
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
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
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
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 - ParallelPaths
Motorist Left Turn -Perpendicular Paths
Motorist Left Turn - ParallelPaths
Motorist Failed to Yield
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-ControlledIntersectionMotorist OvertakingBicyclist
Motorist RightTurn/Merge
Motorist Failed to Yield -Midblock
Motorist LeftTurn/Merge
Motorist Failed to Yield -Signalized Intersection
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 /OtherPaved Shoulder / Bike Lane/ Parking LaneSidewalk / Shared Use Path/ Driveway Crossing
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
BICYCLE CRASHES BY BICYCLIST INITIAL POSITION
0%
10%
20%
30%
40%
50%
60%
70%
2007 2008 2009 2010 2011 2012 2013 2014
Bike Lane / PavedShoulder
Driveway / Alley
Multi-use Path
Sidewalk /Crosswalk/Driveway CrossingTravel Lane
Non-roadway
BICYCLE FACILITY PRESENCE
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
2007 2008 2009 2010 2011 2012 2013 2014
CombinedPkg/Bike Lane
Paved Shoulder
Bicycle Lane
Wide Curb Lane
Not Applicable
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
More QA/QC Use the 2007-2014
data for the crash prediction tool
Make data results available for area partners
NEXT STEPS
Joan G. Hudson, P.E., j [email protected] 512-407-1112 Boya Dai, AICP
[email protected] 512-407-1168
CONTACT INFORMATION
