For Traffic That Flows on a Highway, the Headway Is

question 65

Multiple Choice

For traffic that flows on a highway, the headway is the average time between vehicles. On four-lane highways, the probability P (as a decimal) that the headway is at least t seconds when there are 500 vehicles per hour traveling one way is given by P = 0.87^t. Under these circumstances, what is the probability that the headway is at least 15 seconds?

• A)13.05%
• B)12.38%
• C)11.45%
• D)10.55%

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Definitions:

Successful Minority

Describes a subgroup within a larger population that achieves a higher level of success compared to the average, often despite facing systemic barriers.

Principled

Acting in accordance with morality and showing recognition of right and wrong.

Disrupt

To interrupt by causing a disturbance or problem, significantly altering or destabilizing the status quo.

Ingroup Minority

A smaller subset within a larger group that may hold different views or characteristics from the majority of the group.