R.I. Gen. Laws § 31-20-16: Stops at bridle path crossings.

(a) Every operator of a motor vehicle shall bring his or her motor vehicle to a complete stop in parks and reservations and on state highways where the department of revenue or state traffic commission has posted signs of bridle paths where saddle horses may cross the roads in the parks and reservations and/or highways.

(b) An operator violating the provisions of this section shall be guilty of a civil violation, and upon conviction, shall be fined not more than twenty-five dollars ($25.00) for the first offense nor more than fifty dollars ($50.00) for second or subsequent offenses.