A blue pentagon with yellow lettering is the standard marker for a county road; it names the county, here Marion County, and gives the road's number. These roads are run by county authorities and mostly carry local traffic.
The WRONG WAY sign is posted where a driver could enter a one-way street, a freeway ramp, or the far side of a divided highway against traffic. If it is facing you, you are heading into oncoming vehicles, so stop going forward and turn around when it is safe.
A white airplane on a green guide sign tells travelers that an airport is nearby; further signs usually show the turn or exit that leads to it. It does not warn about aircraft or restrict airspace.
An arrow bent at a right angle warns that the road ahead turns sharply, in this case to the left. Slow down before you reach the turn and keep your vehicle in its lane as you steer through.
A truck tilted on a slope is the symbol for a hill, warning of a steep grade ahead. Slow down before heading downhill and use a lower gear to hold your speed instead of riding the brakes; a truck crossing sign would show a truck on level ground.
This yellow sign with an arrow and a red octagon gives advance notice of a stop sign that may be hard to see in time, for example beyond a curve or a hilltop. Begin slowing early so you can stop smoothly.
A red, white and blue shield bearing the word INTERSTATE marks a route of the Interstate Highway System, in this case I-81. The state name printed on it does not make it a state route; it is still an interstate.
A DIP sign warns of a sudden low point in the road. Slow down before reaching it, since a dip can hide oncoming traffic and can collect water or ice that makes it slippery.
A chevron points the way the road turns and is posted along sharp curves to guide drivers through them. This one points right, so slow down and follow the sharp curve to the right.
A DEAD END sign warns that the street does not connect to any other road, so you will have to turn around to get out. Drive in only if you need to reach a place along that street.
A T symbol means your road comes to an end where it meets a cross street, so you cannot continue straight. Reduce speed, prepare to turn either left or right, and give way to cross traffic where required.
The red ring and diagonal bar over an arrow bending right forbid turning right at this location. Continue straight instead, or turn left if that movement is allowed.
A sign with two numbers sets both limits: you may never exceed 50 mph, and in good conditions you should not drive slower than 30 mph. When rain, fog, snow or ice make 30 mph unsafe, you are expected to slow down even below the posted minimum.
A snaking arrow marks a winding road, meaning a series of curves one after another. Slow down before the first bend and keep a steady speed through the whole stretch rather than braking hard in the curves.
The circular yellow sign marked with an X and the letters RR is posted before a railroad crossing so you have time to slow down. Look and listen for trains and be prepared to stop; the X has nothing to do with turns or road junctions.
The symbol shows a paved road turning into a rough surface, warning that the pavement stops and the road continues as gravel or dirt. Slow down before the change, because loose surfaces give your tires less grip.
Black numbers on a white shield set against a black square identify a U.S. route, part of the national numbered highway network, such as U.S. 20 here. Interstate shields, by contrast, are red, white and blue.
A YIELD sign tells you to reduce speed and be ready to stop so that you do not cut off vehicles or pedestrians that have the right-of-way. Unlike a STOP sign, it does not require a full stop when the way is clear.
This reverse turn sign shows the road turning sharply right and then sharply back to the left. Reduce speed before the first turn and hold your lane position through both bends.
A smoothly bending arrow marks a curve, here one that bends to the right; an arrow with a right-angle corner would warn of a sharper turn instead. Ease off the gas before the curve and avoid braking hard while you are in it.
The arrows above and below the posted height show the lowest clearance under a bridge, overpass or similar structure ahead. If you drive a tall vehicle like a truck, bus or RV, compare that figure with your vehicle's height before going on.
An arrow that doubles back on itself shows a hairpin curve, where the road reverses direction in a tight U shape. Cut your speed well before it and stay in your lane all the way around; this is a warning, not permission to make a U-turn.
The white panel shaped like Nevada, carrying the state name and a route number, marks a state highway. Each state chooses its own design for these markers, and several use the outline of the state.
Every question in this set has its own page with the correct answer and an explanation.
