Conversion of two-way streets to one-way flow can reduce which types of crashes?

The conversion of two-way streets to one-way flow is primarily aimed at improving traffic flow and safety. In this context, the correct answer highlights three specific types of crashes that can be significantly reduced: pedestrian, left-turn, and rear-end crashes.

When streets are converted to one-way, there are a few key impacts that contribute to the reduction of these crash types. Firstly, one-way streets simplify navigation for drivers, as they only need to make turns in one direction, reducing the complexity often associated with two-way traffic. This simplification effectively lowers the likelihood of left-turn collisions, where vehicles may conflict with oncoming traffic, which are common in two-way systems.

Pedestrian safety is enhanced as well; one-way streets typically allow for more predictable vehicle movements, making it easier for pedestrians to judge when it is safe to cross. In addition, with traffic flowing in a single direction, pedestrians can focus on watching for traffic from that one direction rather than having to be vigilant of vehicles coming from both directions.

Rear-end collisions can also decrease as a result of improved traffic flow and fewer conflicts at intersection points. The streamlined traffic pattern leads to a more consistent and predictable movement of vehicles, which reduces sudden stops or disruptions that often lead to rear-end crashes.