Final answer:
When driving a bus across railroad tracks, you should never ignore any warnings or signs. Bus drivers must exercise caution and follow specific procedures to ensure safety.
Step-by-step explanation:
When driving a bus across railroad tracks, you should never ignore any warnings or signs. It is crucial to always stop at the designated spot before the tracks, look and listen for any oncoming trains, and proceed only when it is safe to do so. Bus drivers must exercise extra caution and follow specific procedures to ensure the safety of their passengers and themselves.