a sign that says "no parking" and "no bikes" a sign that is hanging on a fence a sign on a pole warns of no parking a sign on a fence that warns people not to enter a sign that is hanging on a fence a sign on a pole that says no parking a sign that is hanging on a fence a sign on a fence that warns people not to park on the sidewalk a sign on a fence that warns people not to park a sign on a pole that says "no parking" a sign that is hanging on a fence a sign that says "no bicycles allowed" a sign on a pole that warns people not to park on the sidewalk a sign that says "no bicycles allowed" a sign on a pole that warns people not to park on the sidewalk a sign on a fence that warns people not to enter a sign on a fence that warns people not to enter a sign on a pole that says "no parking" a sign on a fence warning people of danger a sign that is on a fence that says no bikes or cars a sign that is hanging on a fence a sign that says "no parking" and "no riding" a sign on a fence that warns people not to park on the sidewalk a sign that is on a fence warning people not to enter a sign that says "no bicycles allowed" a sign that is on a fence that says no parking a sign that says no parking and no bikes a sign on a fence warning people of a no parking zone a sign that is hanging on a fence a sign on a pole warns of no parking
A hazard sign on top of a crossing gate in front of a building. A sign saying that a gate arm can cause harm. A moving arm car blocker has a picture on it. A warning sign about the danger of a checkpoint arm. A warning sign showing a moving arm that lifts and lowers.