Collisions are more likely to occur when:

Collisions are more likely to occur when one vehicle is traveling faster or slower than the flow of traffic because significant differences in speed can create unexpected situations for other drivers. When a vehicle is moving at a pace that is inconsistent with that of surrounding traffic, it can disrupt the established traffic pattern and lead to confusion.

For instance, if a car is traveling significantly slower than others, drivers behind may not anticipate the need to slow down, which can result in rear-end collisions. Conversely, if a vehicle is moving faster than the prevailing speed, it may catch other motorists off guard, increasing the likelihood of sudden maneuvers that can lead to accidents.

This variation in speed often requires drivers to make quick, reactive decisions, which are more prone to error. Maintaining a consistent speed that aligns with the traffic flow allows for smoother merging, lane changes, and overall better predictability, all of which contribute to safer driving conditions.