When are vehicles required to stop when following a stopped school bus with its red lights flashing?

Answer: C — On 4 lanes or less

In Delaware, when a school bus has its red lights flashing, vehicles are required to stop on all roads, regardless of the number of lanes. This rule reflects the importance of ensuring the safety of children getting on and off the bus. The rationale behind this law is to provide a safe environment for children, as they may not always be aware of their surroundings when boarding or alighting from a school bus. Stopping for a school bus with its lights flashing is mandatory on all types of roadways, including highways. In some cases, there may be specific protocols for multi-lane roads, especially when divided by a median, but vehicles traveling in the same direction as the bus must stop. Therefore, the correct understanding emphasizes the universal nature of this stopping rule across all roads when a school bus is stopped with its warning lights activated.