A-1. When judging on the distance of incoming vehicles (e.g. during passing on t

Question

A-1. When judging on the distance of incoming vehicles (e.g. during passing on two-lane roads) which visual factor is utilized? a. Angular movement b. Dynamic visual acuity c. Depth perception d. Vergence e. None of the above Explanation: A-2. What are the factors that can impact driver behavior (mark all that apply): a. Age b. Use of alcohol c. Race d. Drugs/medications e. Talking on cellphones f. Gender g. Illness (e.g. drowsiness) h. All of the above Explanation: A-3. Which of the following is the primary objective of transportation and traffic engineering? a. Speed b. Environmental friendliness c. Traffic data d. Safety e. Convenience Explanation:

Explanation / Answer

A-1 answer: (c) depth perception.

As depth perception refers to the visual ability to perceive the world in 3D and distance of an object.

A-2 Factors affecting driver's behavior are as under:

a) Age: yes

Due to increase in age power of perceiving things and visual power decreases thus reaction time of driver increases.

b) Use of alcohol: yes

Drinking alcohol decreases conscious of the driver thus he/she loses control.

c) Race: No

No difference is there when person of different race drives.

d) Drugs/medications: yes

Heavy dose of drugs disharm human health and driver can lose conscious.

e) Talking on cellphone: yes

It deviates the focus of driver from road thus can be dangerous and behaviour of driver changes.

f) Gender: no

Driving behaviour do not depends whether man or woman is driving.

g) Illness: yes

Driver's illness may lead drivers to lose control.

A-3 answer: (d) safety.

Primary roal of each and every engineer is to serve safety to users in their work. All projects and their outcomes are rearranged if any safety protocol is violated.

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