What type of intersection crashes are most likely to be reduced if two-way STOP control is replaced with a traffic control signal?

Replacing two-way STOP control with a traffic control signal is particularly effective in reducing right-angle collisions, also known as T-bone collisions. These types of accidents typically occur when one vehicle fails to yield to another vehicle that is traveling through the intersection. With two-way STOP control, only traffic on the minor street is required to stop, while the major street has the right of way. This configuration can lead to misunderstandings about right-of-way, resulting in right-angle collisions between vehicles coming from the major street and those that are turning or crossing from the minor street.

When a traffic signal is implemented, it creates a systematic control of the flow of vehicles and pedestrians, regulating who gets to go and when. This clear directive helps all vehicles understand when they must yield or stop, significantly reducing conflicts that lead to right-angle crashes. Traffic signals provide a clear indication of when vehicles can proceed through the intersection, thereby improving safety and reducing the likelihood of these types of collisions.

In contrast, while rear-end collisions can occur at signals, they usually stem from sudden stops or traffic flow transitions rather than directional conflicts. Lane-change collisions are more related to maneuvers during the flow of traffic rather than at controlled intersections. Fixed object collisions often occur due to driver error or