You should be especially cautious for children running in the road at...?

During twilight, which is the period just before sunset and after sunrise, visibility can be significantly reduced. This dim lighting may make it more difficult for drivers to see children who may be playing or running near or in the road. Children are often more difficult to spot in these conditions due to their smaller size and the shadows that can obscure them.

Additionally, twilight is a time when many people are coming home from school or engaging in outdoor activities, increasing the likelihood of children being present near roadways. This combination of reduced visibility and potentially higher foot traffic from children makes it essential for drivers to exercise extra caution during twilight hours.

In contrast, during times like midnight, the likelihood of children being present on the road is significantly lower, while midday typically offers good visibility and is less likely to have children in the streets due to school hours. Dawn can present some visibility issues, but it generally does not encompass the same level of risk as twilight when it comes to child activity levels near roadways.