Section 125. Power of commissioner to order continuance of train service during investigation

Unless otherwise  ordered  or  authorized  by  the
  commissioner, no railroad company shall discontinue any train engaged in
  the  transportation  of  passengers  in  intrastate  commerce within the
  state, except upon thirty days'  notice  to  the  commissioner  and  the
  posting  of  notice  of  such  proposed  discontinuance in every station
  directly affected thereby thirty days in advance  thereof;  nor,  unless
  otherwise  ordered or authorized by the commissioner, shall any railroad
  company discontinue any scheduled station stop by any such train, except
  upon fifteen days' notice and posting as herein prescribed. Upon receipt
  of such notice, the commissioner shall have power,  upon  complaint,  or
  upon  his own motion without complaint, to institute an investigation to
  determine whether the existing service provided by  any  such  train  is
  reasonably required to provide adequate transportation service. Upon the
  institution  of such an investigation, the commissioner is authorized by
  order to require the railroad  company  to  continue  existing  service,
  pending  the  holding  of public hearings and decision thereon, provided
  that such order shall not be effective for a longer period  than  ninety
  days.