Final answer:
Roundabouts can significantly reduce fatal crashes by approximately 90%, injury crashes by about 75%, and overall crashes by about 39% compared to traditional intersections. They improve safety by reducing collision points and vehicle speeds, and they are considered especially where accidents have significantly increased.
Step-by-step explanation:
Crash statistics show that roundabouts reduce fatal crashes by approximately 90%, reduce injury crashes about 75%, and reduce overall crashes by about 39%, when compared to other types of intersection control.
The installation of roundabouts can be a critical step in enhancing safety at intersections. Roundabouts contribute to the reduction of vehicle collision points, lower speeds, and reduction in serious crash angles, consequently lowering the number of serious crashes.
In scenarios where the number of accidents at an intersection increases dramatically, it may indicate the need for improved traffic control measures such as the implementation of a traffic signal, particularly if there have been fatal outcomes.