26 June 2006Institute of Transportation Engineers District 6 Annual Meeting Intelligent...
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![Page 1: 26 June 2006Institute of Transportation Engineers District 6 Annual Meeting Intelligent Transportation Systems Lab Christopher M. Monsere Research Assistant.](https://reader036.fdocuments.net/reader036/viewer/2022070413/5697bfe01a28abf838cb30f2/html5/thumbnails/1.jpg)
26 June 2006Institute of Transportation Engineers District 6 Annual Meeting
Intelligent Transportation Systems Lab
Christopher M. MonsereResearch Assistant ProfessorDept of Civil and Environmental EngineeringPortland State University
Sirisha Kothuri, Kristin Tufte, Robert L. Bertini,
School of Urban & Public AffairsPortland State University
Enhancing Targeted Traffic Enforcement Efforts in Portland, Oregon
Max Thorn Coffman and Christopher M. Monsere
School of Urban Studies and Planning andDepartment of Civil & Environmental Engineering
Intelligent Transportation Systems LaboratoryPortland State University
ITE District 6June 26, 2006
Honolulu, Hawaii
![Page 2: 26 June 2006Institute of Transportation Engineers District 6 Annual Meeting Intelligent Transportation Systems Lab Christopher M. Monsere Research Assistant.](https://reader036.fdocuments.net/reader036/viewer/2022070413/5697bfe01a28abf838cb30f2/html5/thumbnails/2.jpg)
26 June 2006Institute of Transportation Engineers District 6 Annual Meeting
Intelligent Transportation Systems Lab
Outline• Background
• Project motivation
• Methodology
• Preliminary results
• Next steps
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26 June 2006Institute of Transportation Engineers District 6 Annual Meeting
Intelligent Transportation Systems Lab
Background• Strong community support for traffic safety• 2002 - Safe Communities Coalition formed
with grant from Oregon DOT• July 2003 - Portland City Council approved
the Portland Traffic Safety Coordination Council
• November 2003 - Community and School Traffic Safety Account created– Source: Annual increase in traffic fines
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26 June 2006Institute of Transportation Engineers District 6 Annual Meeting
Intelligent Transportation Systems Lab
Community and School Traffic Safety Partnership
• Community-based, coalition-led effort to improve Portland's traffic safety
• Three focus areas– Bicycle and Pedestrian Safety– Safe Routes to School– Reducing Driver Error
• Strategic and Focused Enforcement
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26 June 2006Institute of Transportation Engineers District 6 Annual Meeting
Intelligent Transportation Systems Lab
Distribution of Program ResourcesTotal ~$2.5 million
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26 June 2006Institute of Transportation Engineers District 6 Annual Meeting
Intelligent Transportation Systems Lab
Current Enforcement Toolbox• Regular Traffic Division enforcement
• 10 officers
• Automated enforcement– Red light running cameras
• 6 cameras
– Photo radar• 4 vans
• Strategic and Focused Enforcement (SAFE)– Identified high crash intersections and corridors– Target missions and automated enforcement to
high risk areas
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26 June 2006Institute of Transportation Engineers District 6 Annual Meeting
Intelligent Transportation Systems Lab
Map: PDOT
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26 June 2006Institute of Transportation Engineers District 6 Annual Meeting
Intelligent Transportation Systems Lab
Project Objectives• Research new ways to identify SAFE
corridors– Use new GIS crash data– Try alternate network screening techniques
• Identify state-of-practice approaches
• Benefits– Allocate scarce staff and resources– Judges - maps as supporting evidence
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26 June 2006Institute of Transportation Engineers District 6 Annual Meeting
Intelligent Transportation Systems Lab
Methodology• In GIS, attribute crashes to segments
– average 400 feet (short!)
• Compare crash performance– across similar street types– note: traffic volume data not available yet
• Identify segments “above average”
• Add “driver error analysis”
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26 June 2006Institute of Transportation Engineers District 6 Annual Meeting
Intelligent Transportation Systems Lab
Normalizing for Street Class
Minor street
Other arterial
Primary arterial
Secondary arterial
Crashes per mile per year
(zero values excluded)
2.08
11.31
15.79
27.02
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26 June 2006Institute of Transportation Engineers District 6 Annual Meeting
Intelligent Transportation Systems Lab
![Page 12: 26 June 2006Institute of Transportation Engineers District 6 Annual Meeting Intelligent Transportation Systems Lab Christopher M. Monsere Research Assistant.](https://reader036.fdocuments.net/reader036/viewer/2022070413/5697bfe01a28abf838cb30f2/html5/thumbnails/12.jpg)
26 June 2006Institute of Transportation Engineers District 6 Annual Meeting
Intelligent Transportation Systems Lab
Driver Error Analysis
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26 June 2006Institute of Transportation Engineers District 6 Annual Meeting
Intelligent Transportation Systems Lab
Techniques for identifying corridors
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26 June 2006Institute of Transportation Engineers District 6 Annual Meeting
Intelligent Transportation Systems Lab
0
1 0 0
2 0 0
3 0 0
4 0 0
5 0 0
6 0 0
7 0 0
8 0 0
0 5 , 0 0 0 1 0 , 0 0 0 1 5 , 0 0 0 2 0 , 0 0 0 2 5 , 0 0 0 3 0 , 0 0 0
D i s t a n c e A l o n g S a n d y ( f e e t )
Cumulative Number of Crashes
Cumulative Plot of Crash Rate per Mile per Year for Sandy Blvd
NE 39th Ave
NE 52nd Ave
Distance (feet)
Num
ber
of C
rash
es
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26 June 2006Institute of Transportation Engineers District 6 Annual Meeting
Intelligent Transportation Systems Lab
- 1 0 0
- 8 0
- 6 0
- 4 0
- 2 0
0
2 0
4 0
6 0
8 0
1 0 0
0 5 , 0 0 0 1 0 , 0 0 0 1 5 , 0 0 0 2 0 , 0 0 0 2 5 , 0 0 0 3 0 , 0 0 0
D i s t a n c e A l o n g S a n d y ( f e e t )
N (x,d) - r0*d
NE 39th Ave
NE 52nd Ave
Oblique Plot of Crash Rate per Mile per Year for Sandy Blvd
Distance (feet)
Num
ber
of C
rash
es
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26 June 2006Institute of Transportation Engineers District 6 Annual Meeting
Intelligent Transportation Systems Lab
Enforcement Enhancements
• High profile missions
• Corridor branding and signage
• Increased fine zones
• PDA ticketing
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26 June 2006Institute of Transportation Engineers District 6 Annual Meeting
Intelligent Transportation Systems Lab
Photos courtesy of Sharon White
City Commissioner Sam Adams participates in a crosswalk enforcement mission with media coverage.
High Profile Missions
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26 June 2006Institute of Transportation Engineers District 6 Annual Meeting
Intelligent Transportation Systems Lab
![Page 19: 26 June 2006Institute of Transportation Engineers District 6 Annual Meeting Intelligent Transportation Systems Lab Christopher M. Monsere Research Assistant.](https://reader036.fdocuments.net/reader036/viewer/2022070413/5697bfe01a28abf838cb30f2/html5/thumbnails/19.jpg)
26 June 2006Institute of Transportation Engineers District 6 Annual Meeting
Intelligent Transportation Systems Lab
![Page 20: 26 June 2006Institute of Transportation Engineers District 6 Annual Meeting Intelligent Transportation Systems Lab Christopher M. Monsere Research Assistant.](https://reader036.fdocuments.net/reader036/viewer/2022070413/5697bfe01a28abf838cb30f2/html5/thumbnails/20.jpg)
26 June 2006Institute of Transportation Engineers District 6 Annual Meeting
Intelligent Transportation Systems Lab
Branding, Signage and Increased Fines
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26 June 2006Institute of Transportation Engineers District 6 Annual Meeting
Intelligent Transportation Systems Lab
Next steps
• Incorporate traffic volume data
• Consider other screening approaches
• Use new PDA ticketing data
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26 June 2006Institute of Transportation Engineers District 6 Annual Meeting
Intelligent Transportation Systems Lab
PDA Ticketing
• Saves time
• Reduces error
• Archives data
automatically
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26 June 2006Institute of Transportation Engineers District 6 Annual Meeting
Intelligent Transportation Systems Lab
![Page 24: 26 June 2006Institute of Transportation Engineers District 6 Annual Meeting Intelligent Transportation Systems Lab Christopher M. Monsere Research Assistant.](https://reader036.fdocuments.net/reader036/viewer/2022070413/5697bfe01a28abf838cb30f2/html5/thumbnails/24.jpg)
26 June 2006Institute of Transportation Engineers District 6 Annual Meeting
Intelligent Transportation Systems Lab
Conclusions• Efforts may improve corridor selection
– add in traffic volumes– consider intersections separately– additional screening techniques
• Further research on “Safety Corridors”– Branding and Signage– Increased Fines
• Work with PPB to use new data sources– PDA ticketing
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26 June 2006Institute of Transportation Engineers District 6 Annual Meeting
Intelligent Transportation Systems Lab
Acknowledgements• City of Portland
– Mark Lear– Greg Raisman– Sharon White
• Portland Police Bureau, Traffic Division– Comm. Bill Sinnott– Lt. Mark Kruger– Officer Michael Clary
• PSU ITS Lab– Peter Bosa– Aaron Breakstone Questions?