(1) The circuit court shall impanel a jury of twelve (12) persons, as in other civil cases, to ascertain the amount of compensation that the regional mobility authority shall pay for the real property, the interest in the real property, or the easement which the regional mobility authority is taking.
(2) The matter shall proceed and be determined as in other civil cases.
(3) In all cases of infants or incompetent persons, when no legal representative or guardian appears in their behalf at the hearing, it shall be the duty of the circuit court to appoint a guardian ad litem who shall represent their interest for all purposes.
(4) Compensation shall be ascertained and awarded in the proceeding and established by judgment therein.