Section 31-15-9 - One way highways(a) The state traffic commission may designate any highway or any separate roadway under its jurisdiction for one-way traffic and shall erect appropriate signs giving notice of one-way traffic.(b) Upon a roadway designated and signposted for one-way traffic a vehicle shall be driven only in the direction designated.(c) Violations of this section are subject to fines enumerated in § 31-41.1-4.P.L. 1950, ch. 2595, art. 26, § 8; G.L. 1956, §31-15-9; P.L. 2002 , ch. 292, § 110.