Officials may reduce the speed limit for the primary reason of:

The primary reason officials may reduce the speed limit is to reduce collisions. Speed limits are established to enhance safety on the roads. When speed limits are adjusted downward, it generally lowers the likelihood and severity of accidents, as vehicles are traveling at safer speeds that allow for better reaction times and increased stopping distances.

When speed limits are lowered, it can lead to improved overall road safety by making it easier for drivers to respond to sudden changes in traffic conditions, pedestrians, or obstacles in the roadway. These adjustments are often made in areas where there is a higher incidence of accidents, such as near schools or in densely populated urban areas. The emphasis is placed on creating a safer environment for all road users, including drivers, pedestrians, and cyclists.

While other factors such as traffic flow and revenue may also be considered when setting speed limits, the primary focus of speed limit reductions is on enhancing safety and reducing the potential for collisions.