You are approaching a railroad crossing that has no visible gates or flashing lights, but has a standard crossbuck. You should:

You must approach all railroad crossings with extreme caution and cross only when you know that no train is coming from either direction. If there is a flagger at a crossing, you must obey all of their instructions.

• Approach all tracks with extreme caution and cross only when you know that there is no train coming.
• Turn your radio down to hear if there may be an approaching train.
• Only continue once cleared to do so by a flagger, if applicable.
• All of the above.