Final answer:
A road sign that mentions the end of a divided highway informs drivers that they will soon encounter two-way traffic and should prepare for oncoming vehicles and changing traffic patterns.
Step-by-step explanation:
When a road sign indicates that "the divided highway you are traveling on ends ahead, two-way traffic will begin soon," it is alerting drivers that the separated lanes of the highway will merge and that they will soon be sharing the road with oncoming traffic traveling in the opposite direction.
This typically means that there will no longer be a physical barrier or median separating the two directions of traffic. It is important for drivers to be aware of these changing road conditions for safety reasons, as they need to adjust their driving behavior to accommodate potential oncoming traffic and no longer rely on the separation provided by a divided highway layout. Drivers should watch for oncoming vehicles, reduce speed if necessary, and prepare for possible changes in traffic patterns.