When may you drive around or under a railroad-crossing gate that is lowered, opening, or closing?
Correct answer: D – Never
Hawaii law prohibits driving through, around, or under a railroad-crossing gate while it is closed or is being opened or closed. When a lowered gate or another warning indicates an approaching train, stop between 15 and 50 feet from the nearest rail. Do not proceed until the train has passed and the crossing is available.
Source: HRS § 291C-91 – Obedience to signal indicating approach of train



