Members of the authority shall serve without compensation but shall receive the same expense allowance per day as that received by a member of the General Assembly for each day such member of the authority is in attendance at a meeting of such authority, plus either reimbursement for actual transportation costs while traveling by public carrier or the same mileage allowance for use of a personal car in connection with such attendance as members of the General Assembly receive. Such expense and travel allowance shall be paid in lieu of any per diem, allowance, or other remuneration now received by any such member for such attendance. Expense allowances and other costs authorized in this Code section shall be paid from moneys in the trust fund.