Crossing Streets

Welcome! This page has a collection of my articles, posters, and resources regarding street-crossing. It is divided into issues related to:
General Street-Crossing;
Traffic Signals:
Crossing Streets Where There Is No Traffic Control;
Roundabouts.

For more information by others regarding O&M and street-crossing, try publications and websites devoted to orientation and mobility issues, including:
O&M Resource Site
Accessible Design for the Blind.




GENERAL STREET-CROSSING




Skills and Concepts Needed for Crossing Streets
This page, excerpted from a more comprehensive list of O&M skills, lists skills and concepts that are necessary to get across a wide variety of streets, from simple residential streets to complex modern intersections.

A GENERAL APPROACH TO STREET-CROSSING (analyzing risks, making decisions, and considering alternatives):
  • I first presented a new approach for teaching street-crossing at modern intersections at the O&M Division Conference in 2003; a recording of this presentation, as well as handouts, are available free for AER members (click here) and can be taken for ACVREP credit.
  • This approach is also explained in the following article: Dona Sauerburger (2005). “Street-Crossings: Analyzing Risks, Developing Strategies, and Making Decisions” Journal of Visual Impairment and Blindness October, 2005, AFB Press, New York, NY
  • A brief summary of this approach is included on this website at “Getting Across the Street with Visual and Hearing Impairments,” and some of the features are covered in the following:
    o Determine risks of crossing
    o Reduce risks as much as possible
    o Alternatives when crossing is too risky

    Other articles or handouts on this website regarding general street-crossing issues are:

    What Cues do Blind People Use to Recognize a Street in the Absence of a Curb?
    This was written after participating in research to determine if / how blind people recognize the edge of the street when walking along a ramp.


    Non-visual strategies for aligning to cross streets

    Quiet Cars and the Safety of Blind Persons
    This paper was presented at a public meeting on "Quiet Cars" held by the National Highway Traffic Safety Administration in Washington, DC June 23, 2008.

    Getting Across the Street with Visual and Hearing Impairments
    This outline from a handout includes an approach for teaching any student to cross intersections in general, as well as suggestions for working with students with both hearing and visual impairments.

    Do Drivers Stop at Unsignalized Intersections for Pedestrians Who Are Blind?
    Includes results of study on drivers’ yielding behavior, and survey of blind pedestrians and their perceptions and efforts regarding yield

    Rules of the Road
    Laws regarding pedestrians and “white cane laws” and the importance of knowing them

    Right- and Left-Turn-on-Red Laws
    A brief history of the right-turn-on-red laws




    TRAFFIC SIGNALS




    O&M Specialists have been teaching blind people to cross streets for more than 50 years, but traffic signals these days “aint your father’s traffic signals”! It is the consensus of the world’s largest professional organization of O&M specialists (the AER O&M Division, with more than 1,300 members) that O&M instruction for crossing streets with traffic signals must incorporate skills and information needed to address the modern signalized intersections, as explained in their position paper on the AER O&M Division website. Some of the links on this site attempt to address this critical issue, as well as raise general pedestrian accessibility issues. Information about accessibility of signalized intersections can be found at the website of Accessible Design for the Blind, and the Institute of Traffic Engineers’ “Electronic toolbox” for making intersections more accessible to blind people.

    Changes in O&M “Best Practice” for Crossing at Traffic Signals
    Explains that best practice has changed for teaching crossings at traffic signals, and implications of not using best practice
    Spring 2007 Newsletter, AER Orientation and Mobility Division

    Teaching Blind Pedestrians to Cross at Complex Signalized Intersections
    Lists problematic features of modern signals, with links to suggestions and strategies.

    Crossing at Modern Signals
    Explains features of modern traffic signals that challenge our traditional street-crossing techniques, and strategies that are successful or dangerous and misleading
    Fall 2005 Newsletter, AER Orientation and Mobility Division

    Traffic Signal Enlightenment
    A trip back to the time when we began to recognize the challenges of modern intersections and learn more about the mysterious world of traffic engineers and who to call about specific intersections. Includes links to some great resources on accessibility for blind people and several articles about advocacy efforts, and two articles by blind pedestrians / advocates:
    • “Maryland's Audible Traffic Signal Pilot Study” by Debbie Grubb (September 1996);
    • “Actuated Traffic Signals” By Mary T. (Terrie) Terlau, Ph.D. (May 1997).

    Notes:
    Common features to recognize actuation
    Finding the Pedestrian Button
    Aligning to Cross after Pushing the Pedestrian Pushbutton

    Pedestrian Clearance Intervals at Modern Intersections: Implications for the Safety of Pedestrians Who Are Visually Impaired” (Comment) by Barlow, Janet M., Franck, Lukas, Bentzen, Billie Louise and Sauerburger, Dona (2001). Journal of Visual Impairment and Blindness, AFB Press, NY, Nov. 2001, pages 663-667

    General pedestrian accessibility issues at traffic signals:

    Blind Pedestrian Killed; Intersection Design Contributing Cause
    A death and an injury resulted from the lack of any pedestrian buttons at actuated signals.

    Leading Pedestrian Interval – A Solution We’ve Been Waiting For!
    Benefits of Lead Pedestrian Intervals for pedestrians




    CROSSING STREETS WHERE THERE IS NO TRAFFIC CONTROL




    Following are tools, strategies and approaches to assess and teach street-crossing where there is no traffic control (that is, where there is no stop sign or traffic signal for the street being crossed, as well as right-turning lanes separated with an island, and roundabouts). My interest in this topic began in 1988 as the result of a tragedy -- to read "behind the scenes" about the efforts to study and bring attention to this issue, see the award acceptance speech.

    Program to Teach Concepts and Risk Analysis for Uncontrolled Crossings
    A suggested list of concepts and skills (and activities for teaching them) to enable people to recognize situations where they cannot hear or see the traffic well enough to know when it’s clear to cross (that is, when there is a sufficient crossing gap)..

    Basic assessment / training tools for uncontrolled crossings:
    Timing Method for Assessing the Detection of Vehicles (TMAD)
    Answers the question: “Can I see/hear vehicles far enough away to be certain that when it’s quiet, it is clear to cross?”
    Timing Method for Assessing the Speed and Distance of Vehicles (TMASD)
    Answers the question: “Can I determine the speed and distance of approaching vehicles well enough to know when they are sufficiently far or slow that it's clear enough to cross?”
    Procedure to Develop the Judgment of the Detection of Traffic
    Teaches people to recognize situations where they can not detect traffic well enough to know if there is a sufficient gap to cross.

    Scanning for Cars
    Strategies for scanning by people with visual impairments when crossing streets where there is no traffic control

    Testing the Effectiveness of a Vibrotactile Device for Crossing Streets by Deaf-Blind People
    The TMAD is used to determine if the device “Tactaid II,” which changes sounds into vibrations, can be used to detect approaching vehicles for deaf-blind people.

    Teaching Students to Assess Safety for Crossing Streets Which Have No Traffic Control, by Mary-Maureen Snook Hill and Dona Sauerburger (1996)
    Preliminary research in applying the procedure to develop judgment of the detection of traffic with blind high school students

    Environmental Modifications to Improve Crossings with No Traffic Control
    Examples of modifications that make it easier and safer to cross streets with no traffic control.

    Videotape “Teaching and Assessing Judgment for Crossing Streets Where There is No Traffic Control” can be obtained from the producer Dona Sauerburger

    Poster: Assessing and Developing Judgment of Safety for Crossing Streets Which Have No Traffic Control
    The SpEdEx website has a poster with pictures of situations where there is no traffic control where it is not possible to hear the traffic well enough – even when it’s quiet – to know whether there is a gap long enough to cross (one of these situations is at an intersection at a two-lane residential street). The poster also has pictures of situations where the traffic can be heard far enough away to know that there is nothing coming that could reach you before you finish the crossing (one of these situations is a 3-lane highway). These pictures are on the “picture quiz.” The poster also illustrates that conditions can change, with the example being “Street E,” where the traffic can normally be heard well enough but not when there are cars parked nearby. The ability to hear approaching cars is also affected by pavement conditions (wet vs. dry) and other environmental conditions (air temperature, snow, leaves, etc.).




    ROUNDABOUTS




    Roundabouts are an example of situations where there is no traffic control and where pedestrians are expected to cross during a gap in traffic (the drivers do not always yield reliably for pedestrians at the crosswalk -- see Do Drivers Stop at Unsignalized Intersections for Pedestrians Who Are Blind?).

    In many situations at roundabouts, it is difficult or impossible for blind people to determine whether there is a gap in traffic long enough to cross. It is also difficult for some people with cognitive disabilities who need clear-cut rules, such as "cross when the WALK signal comes on, after checking in certain places for traffic movement." Children who have not yet learned how to determine speed/distance of approaching vehicles also cannot reliably determine safe gaps. And as we age, our ability to determine gaps also deteriorates.

    Roundabouts have many safety benefits over any other kind of intersection. Those safety benefits should be available to all pedestrians, including those who have difficulty with gap detection (such as children, people with cognitive or visual disabilities, and elderly people). These pedestrians need the safety benefits that roundabouts provide as much as or more than others. Roundabouts can and should be accessible to all users.

    The following address the issue of roundabouts and blind people:

    1. Exploring Roundabouts and Circles; 2. Towson Roundabout
    Two articles of our experiences when the Metropolitan Washington Orientation and Mobility Association investigated roundabouts at the request of the Maryland DOT

    Can training enable people who are visually impaired to cross safely at roundabouts?
    Listserv message addresses question about whether people who are visually impaired could cross at roundabouts if they had as much training there as they do at traffic signals.

    Environmental Modifications to Improve Crossings with No Traffic Control
    Illustrations of the use of roundabouts that improve (or fail to improve) crossing situations.

    Papers regarding roundabouts:
    • Inman, Vaughan W., Davis, Gregory W., and Sauerburger, Dona (2005). Roundabout Access for Visually Impaired Pedestrians: Evaluation of a Yielding Vehicle Alerting System for Double-Lane Roundabouts” 2005 Roundabout Conference Proceedings, Transportation Research Board, Vail, Colorado
    • Inman, V. W., Davis, G. W., and Sauerburger, D. (2005) Pedestrian Access to Roundabouts: Assessment of Motorist Yielding to Visually Impaired Pedestrians and Potential Treatments to Improve Access. Federal Highway Administration Report DTFH61–02–C–00064

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