Status Report for Human Factors Guideline for Road Systems Design by pptfiles


									    Status Report for
Human Factors Guideline for
   Road Systems Design
          Sam Tignor
         January 2013
        What is the HFG!
A complement to:

            Expanded documented research
            on road users needs with
            easily used information .
          Why employ their joint use?
• 25% fatalities involve road & user interactions.
• AASHTO & MUTCD Manuals are design tools
• HFG: A guideline for designers & traffic
        engineers to enhance road user safety
        designs & treatments.
• HSM: A tool to estimate safety
• When used together they enhance road user safety.

        So Why Use the HFG?
•   Guidelines based on user-needs research
•   Eliminates searching of published research
•   Eliminates guesswork about user needs
•   Aids designers & traffic engineers in project

                  Brief History
• Funded by: NCHRP starting in 2001
• Supporters:
  - TRB Joint Subcommittee AND10(2)
  - TRB Committees (capacity, users, vehicles, bikes,
  pedestrian, visibility, traffic control, and others)
  - Various    international groups
       2012 Accomplishments
•   HFG published in 2012
•   2 FHWA Webinars in 2012
•   3 presentations to AASHTO groups
•   Presentation at PIARC in 2012
•   Pilot Testing; 5 possible; 3 started (Nev, Id, WI)
•   Mini-workshop for using both HSM & HFG
•   HFG & HSM Primer to be developed by
    NCHRP -- January 2013
Easy 2-Page Layout
TRB Committee Help Needed!
• The HFG is a continuous, long term effort
  (like: highway capacity manual & HSM)
• Helps TRB committees get their key user-
  oriented criteria recognized & implemented
• How: by identifying additional guidelines
  and research (if needed);
• This should be a part of the committees on-
  going activities
    Example Guideline Suggestion
•   Title: Shared Use of Roadway by Motor Vehicles and Bicycles
•   Discussion: Some rights-of-way (road widths) are limited and it is
    neither possible nor practicable to have separate dedicated lanes for
    both motor vehicles and bicycles. In those cases, highway signs are
    placed (e.g., W11-1, R4-11, W11-16) to remind road users that
    additional caution is required by all users of the road. The practice of
    sharing lanes introduces safety for bicycle users and road capacity
    problems for motor vehicles. So, what are appropriate human factor
    shared-road-use guidelines from the perspective of the bicyclists and
    motorists? When should such signs be used and not used in terms of
    road width, geometrics, traffic volume, and shoulder/bicycle lane
•   Available research: No human factor studies are available.
•   Source of research: Some states have crash studies, i.e., Iowa.
              Simple Process

Committee A       Committee B              Committee X

               NCHRP Contractor

                 Draft Guidelines

              JSC & Committee Reviews

                   Add to HFG

              Publish Sections As Developed
         Next HFG Update
• Obtain committee suggestions starting now
• Initiate request to NCHRP for next HFG
  (about 20 months off)
• Select contractor (about 30 months)
         End of Status Report

The HFG is available at:
Discussion !

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