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KAI - Pedestrian Mid Block Crossings Presentation

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Kittelson Slides
Kittelson Slides

This is a Kittelson presentation that was given at the Portland, OR office by Charles Radosta and Hermanus Steyn on Jan 28, 2010. They discussed several aspects related to pedestrian crossings.

Technologie
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January 28, 2010 Hermanus Steyn, Pr.Eng., P.E., and Charles Radosta, P.E. Pedestrian Crossings Transportation Education Series (TES) Portland, Oregon
Overview ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
National Practice and Local Laws ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Disclaimer… ,[object Object]
Do crosswalks exist at all intersections? ,[object Object],[object Object],[object Object]
Do crosswalks exist at all intersections? ,[object Object],[object Object],[object Object],[object Object],[object Object]
Can an Agency close a crosswalk? ,[object Object],[object Object],Portland Pedestrian Design Guide, 1998
Can an Agency close a crosswalk? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
When do vehicles have the right-of-way? ,[object Object],[object Object],[object Object],[object Object]
Is Jaywalking Illegal? ,[object Object],[object Object],[object Object],[object Object]
Establishing Crosswalks at Midblock Locations ,[object Object],[object Object],[object Object]
Establishing Crosswalks at Midblock Locations ,[object Object],[object Object],[object Object],[object Object]
Establishing Crosswalks at Midblock Locations ,[object Object],[object Object],[object Object],[object Object]
Why Provide Marked Midblock Crossings? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Next Section – Pedestrian Characteristics ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Key Research Documents ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Pedestrian Speed ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Pedestrian Characteristics - Distance ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Pedestrian Safety ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Designing for Pedestrians ,[object Object],[object Object],[object Object]
Designing for Pedestrians Understanding ADA Guidelines ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Next Section – Marked vs. Unmarked Crosswalks ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Unmarked Crosswalk ,[object Object],[object Object],[object Object],[object Object]
Marked Crosswalk ,[object Object],[object Object],[object Object]
Marked vs. Unmarked crosswalks ,[object Object],[object Object],[object Object],[object Object],[object Object],Safety Effects of Marked Versus Unmarked Crosswalks at Uncontrolled Locations, Federal Highway Administration, 2005.
Pedestrian Safety – Unsignalized Crossings Marked vs. Unmarked crosswalks Safety Effects of Marked Versus Unmarked Crosswalks at Uncontrolled Locations, Federal Highway Administration, 2005.
Marked vs. Unmarked crosswalks ,[object Object],Safety Effects of Marked Versus Unmarked Crosswalks at Uncontrolled Locations, Federal Highway Administration, 2005.
Marked vs. Unmarked crosswalks ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Next Section – Basic Crossing Treatments ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Geometric Modifications Curb Extensions ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Geometric Modifications Curb Extensions ,[object Object]
Geometric Modifications Tighten Curb Radii ,[object Object],[object Object],[object Object],[object Object],[object Object],Portland Pedestrian Design Guide, 1998
Geometric Modifications Raised Median Islands ,[object Object]
Geometric Modifications Raised Median Islands ,[object Object],[object Object],[object Object],[object Object]
Geometric Modifications Raised Median Islands ,[object Object]
Geometric Modifications Raised Median Islands ,[object Object],[object Object]
Geometric Modifications Raised Median Islands ,[object Object],[object Object],[object Object],[object Object],[object Object]
Geometric Modifications Raised Crosswalk Platforms ,[object Object],[object Object],[object Object],[object Object]
Signing Enhancements Additional Warning Signs ,[object Object]
Signing Enhancements High-visibility Treatments ,[object Object]
Signing Enhancements High-visibility Treatments ,[object Object],[object Object]
Striping Enhancements Advance Stop Bars on Multilane Roadways ,[object Object],Stop
Striping Enhancements High Visibility Lines ,[object Object],[object Object],2009 MUTCD, Figure 3B.19
Electronic Enhancements Illumination at Crossings ,[object Object]
Other Enhancements Crosswalk Flags ,[object Object]
Other Enhancements Crosswalk Flags ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Other Basic Crossing Treatments ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Combining Treatments ,[object Object],[object Object],[object Object],[object Object],[object Object]
Next Section – Enhanced Crossing Treatments ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Pedestrian Beacons ,[object Object],[object Object],[object Object],[object Object],[object Object],Photo: ITE Pedestrian-Bicycle Council
Pedestrian Beacons Continuously-Flashing ,[object Object]
Pedestrian Beacons Continuously-Flashing ,[object Object]
Pedestrian Beacon Comparison ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Pedestrian Beacons Pedestrian Actuated ,[object Object],[object Object],Photo: Dan Burden Photo: ITE Pedestrian-Bicycle Council ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Pedestrian Beacons Pedestrian Actuated ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Electronic Enhancements In-Roadway Warning Lights ,[object Object],[object Object],[object Object]
Electronic Enhancements In-Roadway Warning Lights ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Pedestrian Beacons Rectangular Rapid-Flash Beacons (RRFB) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Pedestrian Beacons Rectangular Rapid-Flash Beacons (RRFB) ,[object Object],[object Object],Van Houten, R., J. Shurbutt, and S. Turner, Analysis of Effects of Stutter Flash LED Beacons to Increase Yielding to Pedestrians Using Multilane Crosswalks, Transportation Research Board, 2008.
Pedestrian Beacons Rectangular Rapid-Flash Beacons (RRFB) ,[object Object],[object Object]
Pedestrian Beacons Rectangular Rapid-Flash Beacons (RRFB) ,[object Object],[object Object]
Pedestrian Beacons Rectangular Rapid-Flash Beacons (RRFB) ,[object Object],[object Object],[object Object],[object Object]
Pedestrian Beacons Rectangular Rapid-Flash Beacons (RRFB) ,[object Object],[object Object],[object Object]
Pedestrian Beacons Rectangular Rapid-Flash Beacons (RRFB) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Excerpts from design plans for the City of Bend by DevTech Engineering, LLC NE Greenwood Ave NE 12 th St
Pedestrian Beacons Rectangular Rapid-Flash Beacons (RRFB) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
High-Cost Electronic Enhancements Traditional Pedestrian Signal ,[object Object]
High-Cost Electronic Enhancements Traditional Pedestrian Signal ,[object Object]
High-Cost Electronic Enhancements Traditional Pedestrian Signal ,[object Object],[object Object]
High-Cost Electronic Enhancements Traditional Pedestrian Signal ,[object Object],[object Object],2009 MUTCD, Chapter 4C
High-Cost Electronic Enhancements Traditional Pedestrian Signal ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
High-Cost Electronic Enhancements Half Signal ,[object Object],[object Object]
High-Cost Electronic Enhancements Half Signal ,[object Object],[object Object]
High-Cost Electronic Enhancements Pedestrian Hybrid Beacons (HAWK) ,[object Object],[object Object],[object Object]
High-Cost Electronic Enhancements Pedestrian Hybrid Beacons (HAWK) ,[object Object],[object Object]
High-Cost Electronic Enhancements Pedestrian Hybrid Beacons (HAWK) ,[object Object],[object Object],2009 MUTCD, Chapter 4F
High-Cost Electronic Enhancements Pedestrian Hybrid Beacons (HAWK) ,[object Object],[object Object],[object Object],[object Object],2009 MUTCD, Chapter 4F
High-Cost Electronic Enhancements Pedestrian Hybrid Beacons (HAWK) ,[object Object],2009 MUTCD, Chapter 4F
High-Cost Electronic Enhancements Pedestrian Hybrid Beacons (HAWK) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
High-Cost Electronic Enhancements Pedestrian Hybrid Beacons (HAWK) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object],[object Object],What comes after Signals? Grade Separation
What comes after Signals? Grade Separation ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Next Section – Evaluation / Selecting a Treatment ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Evaluating Crossings – 2010 HCM ,[object Object],[object Object]
Pedestrian LOS at Unsignalized Locations ,[object Object],[object Object],[object Object],[object Object],[object Object],Delay noticeable and irritating, increased likelihood of risk-taking 20 – 30 D Delay approaches tolerance level, risk-taking behavior likely 30 – 45 E Delay exceeds tolerance level, high likelihood of pedestrian risk-taking > 45 F Delay noticeable to pedestrians, but not inconveniencing 10 – 20 C Occasionally some delay due to conflicting traffic 5 – 10 B Usually no conflicting traffic 0 – 5 A Comments Control Delay (s/ped) LOS
Example Pedestrian LOS Calculation ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Pedestrian LOS at Unsignalized Locations ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Selecting Treatments - NCHRP 562 ,[object Object],[object Object],[object Object],[object Object]
NCHRP 562 – Effectiveness of Treatments High-visibility Treatments Improving Pedestrian Safety at Unsignalized Crossings, NCHRP Report 562 , TRB, 2006.
NCHRP 562 – Effectiveness of Treatments Active when Present Treatments Improving Pedestrian Safety at Unsignalized Crossings, NCHRP Report 562 , TRB, 2006.
NCHRP 562 – Selecting Treatments ,[object Object],[object Object],[object Object],[object Object],[object Object],Walk speed, Crossing distance Critical gap Critical gap, Traffic volume Delay per pedestrian Delay/ped., Pedestrian Volume Total pedestrian delay
NCHRP 562 – Selecting Treatments ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
NCHRP 562 Where are treatments appropriate? ,[object Object]
Next Section – Liability – Risk Management ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Liability – Risk Management ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Next Section – Update from TRB ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Update from Transportation Research Board ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Update from Transportation Research Board Pedestrian Hybrid Beacons (HAWK) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Conclusion - Numerous Research Documents ,[object Object]

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KAI - Pedestrian Mid Block Crossings Presentation

  • 1. January 28, 2010 Hermanus Steyn, Pr.Eng., P.E., and Charles Radosta, P.E. Pedestrian Crossings Transportation Education Series (TES) Portland, Oregon
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  • 26. Pedestrian Safety – Unsignalized Crossings Marked vs. Unmarked crosswalks Safety Effects of Marked Versus Unmarked Crosswalks at Uncontrolled Locations, Federal Highway Administration, 2005.
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  • 88. NCHRP 562 – Effectiveness of Treatments High-visibility Treatments Improving Pedestrian Safety at Unsignalized Crossings, NCHRP Report 562 , TRB, 2006.
  • 89. NCHRP 562 – Effectiveness of Treatments Active when Present Treatments Improving Pedestrian Safety at Unsignalized Crossings, NCHRP Report 562 , TRB, 2006.
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