What should drivers do when stopping at a railroad crossing?

• Keep to the left side of the highway
• Keep as far to the right of the highway as possible
  Explanation:

  "When stopping as required at a railroad crossing, the driver shall keep as far to the right of the highway as possible and shall not form two lanes of traffic unless the roadway is marked for four or more lanes of traffic."
• Form two lanes of traffic if necessary
• Only stop if the roadway is marked for four or more lanes of traffic