To Increase Safety at a Bad Intersection,you Must Decide Whether

question 126

Multiple Choice

To increase safety at a bad intersection,you must decide whether to install a traffic light in your home town at a cost of $20,000.If the traffic light reduces the risk of fatality by 0.5 percent and the value of a human life is about $10 million,what should you do

• A)You should install the light because the expected benefit of $50,000 is greater than the cost.
• B)You should install the light because the expected benefit of $30,000 is greater than the cost.
• C)You should not install the light because the expected benefit of $20,000 is only equal to the cost.
• D)You should not install the light because the expected benefit of $5000 is less than the cost.

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Definitions:

In-Phase

Usually used to mean properly timed or properly balanced. A driveshaft that is in-phase would be assembled balanced and with the yokes aligned.

Drive Axles

The axles connected to the vehicle's drivetrain that are responsible for transmitting power from the transmission to the wheels, enabling movement.

Parallel-Joint Driveline

In driveline terminology, a drive shaft construction in which all of the companion flanges and yokes are parallel with the working angles of the U-joints set to being equal and opposite.

Mating Yokes

Components designed to connect or join together in a mechanical system, ensuring proper alignment and transfer of motion or force.