Traffic signs in America

Single dashed white line: Indicates traffic lanes in the same direction. You can cross this line to change lane.

Single white line: You can drive on both sides of this line in the same direction, but you may not cross this line to change lane unless to avoid a dangerous situation.

Double white line: You can drive on both sides of these lines in the same direction. It is not allowed to cross the lines.

Single dashed yellow line: You can temporarily cross this line to pass the vehicle in front of you.

Double yellow line: Vehicles in both directions can’t cross these lines, unless to turn left.

Double yellow line, continuous on the left, dashed on the right: You can temporarily cross these lines to pass the vehicle in front of you. Vehicles from the opposite direction can’t cross these lines.

Center lane, seperated by a continuous and a dashed yellow line on both sides: Vehicles from both directions can use the center lane to turn left. The center lane may not be used to pass the vehicle in front of you.

Wide white line across the road: This line shows you where to stop at a stop sign or a traffic light.
Double white line across the road: The space between the lines can be shaded. Pedestrians can cross here. Vehicles should yield to pedestrians.

Stop sign: You have to make a full stop at the road marking or just before entering the intersection.
Stop sign with “4-way” sign: Traffic from all 4 directions has to stop. The vehicle that first arrived may go on first. If 2 vehicles arrive at the same time, you should yield to the vehicle on the right.

Yield sign: You have to yield to vehicles coming from other directions. You don’t have to fully stop before moving on.

Do not enter: You can’t enter the street in this direction.

Wrong way: You are driving in the wrong direction. Turn around immediately!

No passing zone: You can’t pass the vehicle in front of you in this zone.

No U-turn: You can’t make a U-turn here. This signs is very common on large intersections.

Speed sign: Tells you the maximum speed for this zone.

Speeding fines doubled: You mostly see this signs near schools or road works. If you are caught speeding in this zone, the fine will be doubled.

One way: You can only enter the street in the direction of the arrow.

No turn on red: Most of the times you can turn right on red after yielding to the other vehicles, except when you see this sign.

Lane must turn: The sign says that the indicated lanes has to turn in the specified direction. Ex. The left lane has to turn left.

Turn lanes: The sign indicates in which directions vehicles in a specific lane have to turn.

Center lane: The center lane can only be used to turn left from both directions.

Recommended speed: This sign shows you the recommended, safe speed for the exit.

Slower traffic keep right: Slower traffic should keep right to give faster vehicles the opportunity to pass on the left side.

Move over for mergency vehicles: This sign can be different from state to state. When passing a stopped emergency vehicle you should take the traffic lane that is the furthest away from the vehicle. If this is not possible, you should at least drive 20mph slower than the maximum speed in that zone.

Merge: This sign tells you your lane will merge with another one. Look out for the traffic on the other lane en be prepared to yield.

Pavement ends: Somewhere up ahead the road will no longer be paved.

Pedestrian crossing: Look out for pedestrians crossing the road. Slow down and yield.

Soft shoulder: This sign indicates a soft shoulder next to the road.

Recommended speed: This sign indicates the recommended speed for the next turn.

Speed limit change ahead: Somewhere past this sign the speed limit will be changed to the one indicated on the sign.

Stop sign ahead: Somewhere past this sign you will see a stop sign.

Road crossing at a school: Slow down and watch out for children crossing the road. Stop when necessary.

School zone: These signs indicate the start and end of a school zone. The speed limit indicated will be enforced when accompanying lights are flashing.

Railroad crossing: The sign with red flashing lights indicate a railroad crossing. You always have to yield to the trains. When the lights are flashing you can’t cross the railroad.

Road work signs: Many different signs are used for road work. Also detours will be shown on these kind of signs. A man with a flag on an orange signs tells you there will be a “flagger” up ahead.

Flaggers: This person with a flag or a sign tells you if you have to stop or can slowly proceed.