Final answer:
The topic deals with the importance of adhering to traffic laws, such as signaling and respecting speed limits, to prevent accidents. Traffic signals are installed at intersections like Clay Street and Eagle Avenue to mitigate the risk of accidents resulting from the failure to follow these laws.
Step-by-step explanation:
The discussion around the failure to signal direction or to reduce speed suddenly often relates to traffic laws and road safety measures. In the context of the provided information, we understand the importance of signaling and adhering to speed limits, especially at intersections where the failure to do so can lead to accidents. The placement of traffic signals serves as a regulatory measure to prevent such failures and consequently reduces the number of accidents. For instance, Clay Street and Eagle Avenue's intersection saw many vehicles speeding through without regard to the posted speed limit, leading to an unacceptable increase in accidents, one of which led to a loss of life. Therefore, the installation of a traffic signal was deemed necessary to enforce road safety and compliance with traffic laws.