Final answer:
Broken white lines on streets and highways signify that drivers can safely change lanes or overtake other vehicles, provided that the road is clear and there are no oncoming vehicles.
Step-by-step explanation:
Broken white lines (dashes) on streets and highways indicate lanes where vehicles can change lanes or pass safely when there is no oncoming traffic and the roadway conditions are clear. These markings are a guide for drivers to understand the flow of traffic and to make lane changes without the need for physical barriers. They balance the need for vehicle mobility and safety on roads. It is important for drivers to observe these markings to maintain an orderly flow of traffic and to reduce the risk of accidents