Final answer:
The statement about circular intersections and traffic signaling is true. Traffic signals are crucial for ensuring pedestrian safety, enforcing speed limits, and managing increased traffic and accident rates.
Step-by-step explanation:
The statement provided is true: signs indicating a circular intersection, also known as rotaries or traffic circles, require entering traffic to yield to traffic already in the loop. The installation of a traffic signal at such intersections can be warranted for several reasons, particularly when pedestrian safety is a concern. Pedestrians, including students coming to or leaving campus, must navigate across traffic which can be mitigated by a signal allowing for safe crossing at designated times.
Additionally, the presence of a traffic signal generally forces vehicles to reduce speed and comply with the posted limits, improving overall safety and reducing the likelihood of accidents. Speed through an intersection without a signal can be problematic, and signals enforce control over speeding vehicles.
Lastly, it is essential to consider the increase in traffic volume and accidents, as key indicators for the need of a traffic signal. An upsurge in nearby businesses, changes in traffic patterns during events, and a significant rise in accidents, including those with severe consequences, underscore the need for better traffic management and pedestrian safety measures. Figures such as the occurrence of at least three accidents per month at an intersection clearly justify the installation of a traffic signal.