Traffic Sign Shapes  Regulatory Signs 16  ©2020 Florida Department of Highway Safety and Motor Vehicles  No Passing.  You are entering a no passing zone.  Wrong Way.  You are going the wrong way. Do not drive past  this sign! Turn around immediately.  Do Not Enter.  On one-way streets and roadways that you  are not allowed to enter. You may see this sign if you enter an  expressway ramp in the wrong direction. Turn around!  Yield.  You must slow down and give vehicles crossing your path  the right-of-way. If the way is clear, you may move forward slowly  without stopping.  Four-way stop.  Traffic from all four directions must stop.  Vehicles proceed through the intersection in the order that  they arrived at the intersection; the first vehicle to reach the  intersection should move forward first. If vehicles arrive at  approximately the same time, each driver must yield to the  drivers on their right.  Stop sign.  You must bring your vehicle to a complete halt at  the stop line. If there is no stop line, stop before entering the  crosswalk. If there is no marked crosswalk, stop before entering  the intersection at a point near the intersecting roadway where  you have a clear view of approaching traffic.  Regulatory signs control traffic; they set limits or give commands  and are enforceable by law.  Pennant  No passing zones  Diamond  Warn of existing or  possible hazards  Triangle  Yield  Octagon  Stop  Crossbuck  Railroad crossing  Round  Railroad  advance warning  Pentagon  School advance/  school crossing  Rectangle (Vert)  Set rules  on Road  Rectangle  (Horizontal)  Guide 