HAWK Evaluation NE/SE 41 st Ave & E Burnside St Sirisha Kothuri William Farley Kimber Miller Aaron Rieck Civil & Environmental Engineering.

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Presentation transcript:

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

Civil & Environmental Engineering Study Area Burnside St & 41 st Ave

Civil & Environmental Engineering Study Area Current Portland Bicycle Map Portland Bicycle Plan for 2030 E. Burnside St & 41 st Ave

Civil & Environmental Engineering Study Area - 41 st Avenue

Civil & Environmental Engineering Study Area - Burnside St

Civil & Environmental Engineering Study Area Study Area – Intersection Diagram Source: FHWA Experimentation #4-298(E) Modified HAWK Signal and Bike Signal - Draft Report

Civil & Environmental Engineering HAWK Westbound Burnside Eastbound Burnside

Civil & Environmental Engineering HAWK Display Flashing Yellow Solid Yellow Solid Red Flashing Red

Civil & Environmental Engineering Bike and Pedestrian Displays Don’t Walk Walk Flashing Don’t Walk

Civil & Environmental Engineering Display Sequence Source: FHWA Experimentation #4-298(E) Modified HAWK Signal and Bike Signal - Draft Report

Civil & Environmental Engineering 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

Civil & Environmental Engineering 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 Avg Delay/Stopped BikeAvg Delay/Approach Bike SB on 41st20 sec7.5 sec NB on 41st16.67 sec12.5 sec

Civil & Environmental Engineering Analysis – Pedestrian Counts MaleFemaleUnknown

Civil & Environmental Engineering Analysis – Pedestrian Violations

Civil & Environmental Engineering Analysis - Bicycle Counts MaleFemaleUnknown

Civil & Environmental Engineering Analysis – Bicycle Violations

Civil & Environmental Engineering Analysis – Vehicle Movement Violations Counts

Civil & Environmental Engineering Analysis – Vehicle Violation Specifics

Civil & Environmental Engineering Crashes Rear – End FixedHead – OnSide Swipe Before Installation (Oct 2004 – Oct 2006) 2100 After Installation (Nov 2006 – Nov 2008) 5011 Direction of Change 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 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 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 Bureau of Transportation, City of Portland Dr. Ashley Haire, Portland State University Mark Haines, PSU/City of Portland