Section 1623. Regulation of traffic on the grounds of state departments, institutions of the state university, state hospitals and other state institutions

(a)  Upon  the  application  of  the  head  of  any state
  department, upon the application of the board of trustees of  the  state
  university of New York and upon the application of the board of visitors
  or other similar board or body of a state hospital or state institution,
  the  department  of  transportation  may  by  order,  rule or regulation
  prohibit, restrict or regulate traffic  on  or  pedestrian  use  of  any
  highway  on  the  grounds of the department, institution or institutions
  over which the department head, board or body making  such  applications
  has jurisdiction. (b) This section shall not apply to any of the grounds
  referred to in section fifty-seven hundred eight of the education law.