Why are roundabouts considered safer than traditional intersections?

Roundabouts are considered safer than traditional intersections primarily because they reduce vehicle conflict points. In a traditional intersection, vehicles can potentially collide at multiple angles when they encounter traffic lights or stop signs, which creates more opportunities for accidents. Roundabouts mitigate this risk by facilitating a flow of traffic that promotes circular movement, allowing vehicles to yield rather than stop, which decreases the likelihood of high-speed crashes.

Moreover, the design of roundabouts guides drivers to navigate through them at lower speeds, which not only enhances safety but also reduces the severity of accidents that may occur. The circular format ensures that vehicles enter and exit without crossing paths directly, thus lowering the chances of head-on or T-bone collisions commonly seen at intersections with traffic signals.

While the other options mention features that could be present at intersections, they do not relate to the fundamental reason why roundabouts improve safety. For instance, having more traffic lights does not inherently make intersections safer and may actually complicate traffic flow. Higher speeds are generally associated with increased risk of severe accidents, contrasting with the slower, more controlled speeds in roundabouts. Lastly, while U-turns can be accommodated in roundabouts, this feature alone does not contribute to their safety benefits in comparison to traditional intersection designs.