The National Academies

NCHRP Synthesis 20-05/Topic 46-10 [Active (Synthesis)]

Practices for Traffic Control Application at Pedestrian Crossings
[ NCHRP 20-05 (Synthesis of Information Related to Highway Practices) ]

  Project Data
Funds: $40,000
Authorization to Begin Work: 9/29/2014 -- estimated
Staff Responsibility: Tanya M. Zwahlen (Consultant)
Research Agency: The University of North Carolina at Chapel Hill
Principal Investigator: Charles Zegeer
Effective Date: 11/13/2014
Fiscal Year: 2014

Final Scope

The purpose of this research project is to identify pedestrian crossing treatments being used in different places throughout the United States and beyond, and what processes are used to select and evaluate treatments. Examples of crossing treatments that have been implemented and evaluated include, but are not limited to:

Infrastructure Treatments:
• Medians, crossing islands
• Raised crosswalks and raised intersections
• Textured/decorative/colored crosswalks
• Street lighting and enhanced pedestrian lighting
• Curb extensions
• Reduced corner radii
• Corridor speed reduction techniques and road diets
• Pedestrian overcrossings/undercrossings

Traffic Control Devices Treatments:
• Signal installation/timing
• Beacons
• Markings
• Signs

This synthesis report will identify:
• Treatments being used to address pedestrian safety, mobility and access at controlled and uncontrolled pedestrian crossings
• Procedures for selecting crossing location and treatment (e.g. policy, guidelines, standards, design references, cost, etc.), including consideration for intersections and/or mid-block crossings
• Factors influencing treatment selection, including but not limited to:
o Area type
„X Urban, suburban, rural
o Land use type
„X Commercial, industrial, residential, school zone
o Speed limit
o ADT and truck volumes
o Transit access
o Number of lanes and crossing distance
• If and how treatments are evaluated
• What problems remain unresolved
• Future research needs

Information will be gathered through a domestic and international literature review, a survey of a sample of cities and counties, and a survey of all 50 state DOTs. Survey respondents may include members of the AASHTO Standing Committee on Highways, the National Association of City Transportation Officials (NACTO), National Association of County Engineers (NACE), and Institute of Transportation Engineers (ITE). Information will also be gathered through follow up interviews with select state and municipal staff, for the purpose of developing case studies. The report should include at least five case studies that address a variety of contexts (e.g. urban, suburban, rural), how crossing locations and treatments were selected, and how they are being evaluated.

Potential Information Sources:
• NCHRP Synthesis 436 “Local Policies and Practices that Support Safe Pedestrian Environments”
• NCHRP 562 “Improving Pedestrian Safety at Unsignalized Crossings” http://www.trb.org/Main/Blurbs/157723.aspx
• Bike/pedestrian state coordinators
• International scan from USDOT (Shawn Turner)
• ITE, “ALTERNATIVE TREATMENTS FOR AT-GRADE PEDESTRIAN CROSSINGS,” http://www.ite.org/Membersonly/techconference/2002/CB02C2403.pdf
• FHWA, Safety Effects of Marked Versus Unmarked Crosswalks at Uncontrolled Locations Final Report and Recommended Guidelines, http://www.fhwa.dot.gov/publications/research/safety/04100/ref.cfm
• Fehr & Peers, XWalk+ Tool and User’s Guide, http://asap.fehrandpeers.com/complete-streetslayered-networks/xwalk/
• City of Oakland, Draft Signalized Intersection Pedestrian Treatment Guidelines (Meghan Mitman to provide; includes NACTO cities survey) 

TRB Consultant
Tanya Zwahlen
Phone: 585-315-1834
Email: tzwahlen@nas.edu

Meeting Dates
First Panel: September 23, 2014, Washington, DC
Teleconference with Consultant: November 18, 2014, 2:00 p.m.
Second Panel: July 7, 2015, Irvine, CA

Topic Panel
Lauren Ann Blackburn, North Carolina DOT
George Branyan, District of Columbia DOT
Michael A. Chacon, Texas DOT
Timothy Gates, P.E., Wayne State University
Meghan F. Mitman, Fehr & Peers Transportation Consultants
Cara Seiderman, City of Cambridge
Dario Senor, California Department of Transportation
Ann H. Do, Federal Highway Administration
Kevin Dunn, Federal Highway Administration
Richard A. Cunard, Transportation Research Board

Charles Zegeer, The University of North Carolina at Chapel Hill

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