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HAWK Evaluation NE/SE 41 st Ave & E Burnside St. Sirisha Kothuri William Farley Kimber Miller Aaron Rieck. Civil & Environmental Engineering. Outline. Introduction Area Characteristics Data Analysis Conclusions Recommendations Acknowledgements. Civil & Environmental Engineering.

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hawk evaluation ne se 41 st ave e burnside st

HAWK EvaluationNE/SE 41st Ave & E Burnside St

Sirisha Kothuri

William Farley

Kimber Miller

Aaron Rieck

Civil & Environmental Engineering

outline
Outline
  • Introduction
  • Area Characteristics
  • Data
  • Analysis
  • Conclusions
  • Recommendations
  • Acknowledgements

Civil & Environmental Engineering

introduction
Introduction
  • High Intensity Activated CrossWalK
  • Motivation
    • Portland Crashes (1985 – 2002)
    • Increase in bicycle traffic
    • Commitment to walking and biking

Pedestrians Crashes

3% Injuries

29 % Fatalities

Civil & Environmental Engineering

introduction cont
Introduction – cont.
  • Crashes at non – signalized intersections
    • Bikes and Peds have trouble finding gaps
    • Motorists on major streets do not yield or stop
  • Options to reduce crashes
    • Median refuge islands, painted crosswalks
      • Low compliance rate
    • Install traffic signal
      • Not warranted, higher delay, increase in emissions
    • HAWK

Civil & Environmental Engineering

mutcd hawk locations
MUTCD & HAWK Locations
  • 2009 MUTCD
    • Includes information on ped hybrid beacon
    • Application, design and operation
  • Installed locations
    • Portland, OR
      • 41st & Burnside
      • 18th & Sandy
    • Tucson, AZ
    • Other cities (Washington DC, Salt Lake City )

Civil & Environmental Engineering

study area
Study Area

Burnside St & 41st Ave

Civil & Environmental Engineering

study area1
Study Area

E. Burnside St & 41st Ave

Current Portland Bicycle Map

Portland Bicycle Plan for 2030

Civil & Environmental Engineering

study area 41 st avenue
Study Area - 41st Avenue

Civil & Environmental Engineering

study area burnside st
Study Area - Burnside St

Civil & Environmental Engineering

study area2

Study Area – Intersection Diagram

Study Area

Source: FHWA Experimentation #4-298(E) Modified HAWK Signal and Bike Signal - Draft Report

Civil & Environmental Engineering

slide11
HAWK

Westbound Burnside

Eastbound Burnside

Civil & Environmental Engineering

hawk display
HAWK Display

Flashing Yellow

Solid Yellow

Solid Red

Flashing Red

Civil & Environmental Engineering

bike and pedestrian displays
Bike and Pedestrian Displays

Don’t Walk

Walk

Flashing Don’t Walk

Civil & Environmental Engineering

display sequence
Display Sequence

Source: FHWA Experimentation #4-298(E) Modified HAWK Signal and Bike Signal - Draft Report

Civil & Environmental Engineering

slide15
Data
  • Video data available for 4 days in May 2009
  • Analyzed time periods
    • PM Peak (5 – 6 PM) on Thursday, 5/14/2009
    • AM Peak (8 – 9 AM) on Friday, 5/15/2009
  • Type of data gathered
    • Counts: Pedestrian & Bicyclist
    • Violations: Pedestrian, Bicyclist, & Motor vehicles
    • Delay: Pedestrian & Bicyclist

Civil & Environmental Engineering

intersection via video
Intersection via Video

Civil & Environmental Engineering

analysis pedestrian bicycle delay
Analysis – Pedestrian & Bicycle Delay
  • Delay data not collected from video because of camera angle
  • HAWK activates as soon as button is pressed
  • Min time between activations – 30 sec
  • Observed and collected data in PM on February 22, 2011

Civil & Environmental Engineering

analysis pedestrian counts
Analysis – Pedestrian Counts

Civil & Environmental Engineering

analysis pedestrian violations
Analysis – Pedestrian Violations

Total AM => 23

Total PM => 24

Civil & Environmental Engineering

analysis bicycle counts
Analysis - Bicycle Counts

Civil & Environmental Engineering

analysis bicycle violations
Analysis – Bicycle Violations

Total AM => 44

Total PM => 84

Civil & Environmental Engineering

analysis vehicle movement violations counts
Analysis – Vehicle Movement Violations Counts

Civil & Environmental Engineering

analysis vehicle violation specifics
Analysis – Vehicle Violation Specifics

HAWK Activations

AM => 28

PM => 41

Civil & Environmental Engineering

crashes
Crashes

Source: FHWA Experimentation #4-298(E) Modified HAWK Signal and Bike Signal -Draft Report

Source: FHWA “Safety Effectiveness of the HAWK Pedestrian Crossing Treatment”

..

Civil & Environmental Engineering

conclusions
Conclusions
  • Primary objective of using the HAWK system
  • System usage at study location
  • Violations were observed for all modes
  • Crashes for the study location

Civil & Environmental Engineering

recommendations
Recommendations
  • Improvements to the signal on Burnside
  • Improvements to the signal on 41st
  • Increased public education
  • Further research on crash patterns and effectiveness

Civil & Environmental Engineering

acknowledgements
Acknowledgements
  • Bureau of Transportation, City of Portland
  • Dr. Ashley Haire, Portland State University
  • Mark Haines, PSU/City of Portland

Civil & Environmental Engineering

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