When facts are presented to the Commissioner tending to show that an unreasonable hazard exists in the continued operation of a passenger tramway, and after such verification of said facts as is practical under the circumstances and consistent with the public safety, the Commissioner may by an emergency order require the operator of said tramway forthwith to cease using the same for the transportation of passengers. Such emergency order shall be in writing, signed by the Commissioner, and notice thereof shall be served upon the operator or his agent immediately in control of said passenger tramway by a true copy of such order, with a return being made of such service and endorsed on the original order. Such emergency shutdown shall be effective for a period not to exceed 48 hours from the time of service. Immediately after the issuance of an emergency order, the Commissioner shall conduct an investigation into the facts of the case and shall take such action as may be appropriate and as provided by the provisions of this Article. (1969, c. 1021.)