The board shall have the following responsibilities: (1) advise the director on medical criteria relating to the safe operation of motor vehicles; (2) recommend to the director procedures and guidelines for licensing individuals with physical or mental impairment; (3) initiate the development of medically acceptable report forms; (4) direct research of medically impaired individuals; (5) recommend a training course for driver examiners in the medical aspects of licensure; (6) spearhead efforts to orient the general physician population as well as the public in the medical aspects of driver licensure; (7) assist in the development of regional driver license medical advisory boards to be constituted similarly to the board established by this division; and (8) evaluate individual problem cases that require more than one opinion or that cannot be screened out in light of guidelines established by the board. The board may formulate such advice from records and reports or may cause a physical examination and written report to be made by a physician of the applicant's choice, licensed to practice in this state, or by one or more members of the board. The individual licensed driver or applicant may cause a written report to be forwarded to the board by a physician of his or her choice licensed to practice in this state, and such report shall be given due consideration by the board. The board shall exercise its option of interviewing in person any driver or applicant whose ability to operate a motor vehicle safely cannot be ascertained through written reports or records.