RCW 28B.50.140(10) authorizes the board of trustees of Cascadia College to adopt rules for pedestrian and vehicular traffic on the college campus. RCW 28B.10.560 similarly authorizes the board of regents of the University of Washington to adopt rules governing pedestrian and vehicular traffic and parking upon lands and facilities of the university. The rules set forth in this chapter have been jointly developed and agreed upon by the two institutions of higher education, and adopted and codified in separate chapters of the Washington Administrative Code by each of the two institutions.