Final answer:
Major causes of fatal traffic accidents in Tennessee include speeding, following too closely, and turning in the wrong lane, attributing to driver error. Data from AAA suggests that driver error is a significant factor in fatal accidents, and the study of 30 accidents supports this claim. The traffic signal may be installed to improve safety after frequent accidents.The correct option is 2.
Step-by-step explanation:
A major cause of fatal traffic accidents in Tennessee includes behaviors such as speeding, following too closely, and turning in the wrong lane. Each of these contributes to driver error, which is a significant factor in traffic accidents. According to American Automobile Association (AAA) studies, driver error accounts for about 54 percent of all fatal auto accidents. In an analysis of 30 randomly selected fatal accidents, 14 were found to be due to driver error. To assess if the AAA proportion is accurate, a hypothesis test could be performed using the significance level (α = 0.05).
A comparison of collision causes over time shows that traffic safety concerns evolve. For instance, in 1999, motor vehicle crashes led to more accidental deaths than drug overdoses, but by 2014 this trend reversed, highlighting changing public health issues. Moreover, traffic congestion can increase the likelihood of collisions, akin to a high car concentration leading to frequent 'unwanted connections' with other cars, as described in section 18.6: Factors Affecting Reaction Rate.
It's also important to mention the impact of traffic conditions and signals on accident rates. When accidents at a particular intersection rise above an acceptable limit or occur multiple times per month, installation of a traffic signal is often considered a necessary safety measure. This preventive step is further emphasized if any of the accidents have resulted in fatalities.
The correct option is 2.