REVIEW: Study Questions for Essential Information
The Self-Study Guide covers a lot of information, some of which is considered essential in order to teach students about crossings with no traffic control.
This essential information is addressed with the following study questions, each of which has a link to the page with that information.
1. What assumption about crossings with no traffic control is no longer true?
What evidence do we have for this?
2. What is the consensus of the O&M profession regarding the responsibility of O&M specialists for teaching their students about crossings with no traffic control?
What documentation shows that there is consensus about this responsibility?
3. Are there situations today in which we can not be confident it is clear to cross even though it is quiet and we hear no vehicles approaching? (Review)
Are there any situations today where we can be confident that it is clear to cross whenever it is quiet?
4. Can a crossing be a Situation of Uncertainty at one time and a Situation of Confidence at another? (
5. Are there any rules or guidelines for figuring out whether you are in a Situation of Uncertainty for gap judgment, other than carefully observing how well you can hear or see the vehicles?
That is, are there any features of crossings (such as hills and bends in the street, width of the crossing, speed of traffic,
etc.) that we know can predict whether or not there is a Situation of Uncertainty for gap judgment?
6. How can we recognize Situations of Uncertainty?
7. Can we rely on crossing strategies such as starting to cross with a car that was waiting at the stop sign on the parallel street beside us?
8. In the Procedure to Develop Judgment of the Detection of Traffic, what should you do to help ensure that students can recognize situations of uncertainty for gap judgment?
Which timing method of assessment is used in this procedure? (Review)
9. Two procedures that are helpful in teaching students are See "Which Procedure do you use when?" at the end of Section 4 for a review of the procedures.
Which procedure would be best to help students learn each the following?
10. What issue is of concern when using the Timing Method for Assessing Detection of Vehicles?
- recognize when they cannot hear / see the vehicles with enough warning to know when it's clear to cross?
- recognize when the traffic is far/slow enough to allow them time to cross?
- recognize when they have enough time to cross even though they can hear or see vehicles approaching in a distance?
- recognize the effect of masking sounds on their ability to hear the cars?
11. What are the specific steps for using the TMAD (Review) and Determining Gaps in Approaching Traffic (Review)?
12. Should the TMAD be used to assess crossings? (Review)
13. What is necessary in order to draw a conclusion with the TMAD? (Review)
14. What is the goal of the training to develop judgment of the detection of traffic or determining gaps in approaching traffic? (Review)
15. When Determining Gaps in Approaching Traffic, what factors should be included when determining the length of time for "X"?
16. What are the challenges that people with a severely restricted visual field ("tunnel vision") or a central scotoma (such as macular degeneration) may have for glancing / scanning? (Review)
Return to Self-Study Guide: Preparing Visually Impaired Students to Assess and Cross Streets with No Stop Sign or Traffic Signal