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29 Cards in this Set
- Front
- Back
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The approximate horizontal peripheral vision
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What is 90 degrees left and right? |
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The approximate vertical peripheral vision |
What are 55 degrees above and 70 degrees below? (pg 6) |
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The area of accurate vision (contrasted to peripheral vision, 2-4 degrees from the visual focal point) |
What is the fovea? (pg 6) |
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The ITE Definition of transportation engineering |
What is "the application of technology and scientific principles to the planning, design, operation, maintenance and management of systems and facilities of any mode of surface transportation in order to provide for the safe, rapid, comfortable, convenient, economical and environmentally compatible movement of people and goods." (pg 1) |
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The ITE definition of traffic engineering |
What is "the phase of transportation engineering that deals with the safe and efficient planning of geometric design and traffic operations of roads, streets and highways, their networks, terminals, abutting and relationships with other motorized and non-motorized modes of transportation." (pg 1) |
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Useful field of view while driving |
What is 20-30 degrees? (pg 6) |
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Is not a fixed time but depends on the difficultly of the stage of the process (but generally 1.5 or 2.5 seconds) |
What is perception time? (pg 9) |
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The detection time for an expected object |
What is a fraction of a second? (p 9) |
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Alcohol, drugs, fatigue and emotional factors |
What are driver impairments? (pg 12) |
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The range of drivers whos abilities and limitiations need to be taken into account in designing roads (often 85th percentile) |
What is the design driver?
(p 14) |
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About 16% of the total drivers in the united states currently but increasing rapidly? |
What are older drivers? (p 14) |
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Crashes per mile level off between these ages |
What are 30 and 65 years old? (p 14) |
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Crash rates for this group are about four times greater for this age group than the general population |
What are drivers between 16-19 years old? (p 15) |
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These drivers are more likely to engage in dangerous driving behavior, have a poor perception of dangerous situations and be influenced by other passengers? |
Who are novice drivers? (p 15) |
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This group's primary concerns are fatigue, vehicle operation and different traffic control devices and regulations |
Who are truck drivers?
(p 16) |
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These vehicles are difficult to see, very maneuverable and the occupants often lack protection and often speed. A common type of collision is run-off-road. |
What are motorcyclists? (p 18) |
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Right-turns on red are a particular concern for the safety of these road users |
What are pedestrians? (p 18) |
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Design driver, older driver, novice drivers, truck drivers, motorcyclists, pedestrians and bicyclists |
What are road user types? (p 14) |
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The historical design pedestrian speed has been this value. |
what is 4.0 ft/sec? (p 20) |
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Current design pedestrian speed |
What is 3.5 ft/sec? *double check this* |
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* Separate pedestrians and vehicles by time * Increase pedestrian visibility * Reduce vehicle speed |
What are the main pedestrian safety countermeasures? (p 22) |
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Too narrow shoulders significantly affects this road user |
Who are bicyclists? (p 23) |
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The new typeface used on signs. Studies show that this typeface is easier to read at longer distances than the old one. |
What is clearview? (p 25) |
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The old typeface used on signs. |
What is FHWA Series E? (p 25) |
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The zone where some drivers may chose to stop at a yellow signal and others may chose to continue |
What is the dilemma zone? (p 32) |
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The number of conflict points in a regular 4-way intersection |
What are 32? (p33) |
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The number of conflict points in a roundabout |
What are 8? (p33) |
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When an on-ramp is less than 1.3 miles from the next off-ramp |
What is a weaving section? ( p 35) |
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This type of crash mainly occurs on curves |
What are run off the road crashes? (p37) |
