Final answer:
If the roadway ahead is flooded, you should not attempt to cross it but should instead stop and find an alternate route. This is to avoid the potential dangers posed by hidden debris, washed out road surfaces, and strong water currents.
Step-by-step explanation:
If you find that the roadway ahead of you is flooded, you should not attempt to cross it. It is crucial to understand that flooded roads can pose serious hazards, such as hidden debris or washed out road surfaces, and the depth or current of the water can be deceptively strong. According to safety guidelines, if you encounter a flooded roadway, you should stop and find an alternate route. Continuing to drive through flooded areas can lead to vehicle malfunction, loss of control, or even being swept away by the current. Waiting until the floodwater subsides is a safe and responsible action, much like the guidance to wait until a swollen river subsides before attempting to ford it, as described in historical military strategy for traversing difficult terrains.