As you drive, watch for shady spots, bridges and overpasses since these places freeze first and dry out last.

Alcohol is the most important cause of fatal car accidents. Approximately 40 percent of all traffic deaths involve alcohol. One person dies every half hour and one person is injured every two minutes, because someone was drinking and driving.

Circular (round) signs mean you are approaching a railroad crossing.

When you merge with traffic, signal and enter at the same speed that traffic is moving. Check your blind spots. Note that this question asked what you should not do.

A reflective orange triangle on the rear of a vehicle means it is traveling less than 25 mph. You may see this decal on construction equipment and in rural areas on farm vehicles, horse drawn wagons, or carriages.

Keep your front wheels pointed straight ahead until you are actually going to make the left turn. This prevents you from being pushed into oncoming traffic if another vehicle crashes into you from behind.

Windshield wiper is required equipment. A bell, siren, or exhaust whistle is not allowed. A red light showing from the front is not allowed. Running board courtesy lights are optional equipment.

Some penalties for drinking and driving come just from being arrested. If it is your first arrest within seven years and the breath or blood test result shows a BAC of .08 or more (.02 if you are under age 21), your license will be suspended for 90 days. You may be able to get a restricted license. You will only be allowed to operate vehicles equipped with an ignition interlock device. Before the penalties go into effect, you may request a hearing.

Do not park within 20 feet of a pedestrian safety zone.

You should allow extra space when following a motorcycle. If the motorcycle should fall, you need extra distance to avoid the rider. The chances of a fall are greatest on wet or icy roads, gravel roads or metal surfaces such as bridges, gratings, or streetcar or railroad tracks.

By law, you must proceed with caution and, if reasonable, with due regard for safety and traffic conditions, yield the right-of-way by making a lane change or moving away from the lane or shoulder occupied by the stationary authorized emergency vehicle or police vehicle.

Use your horn to attract attention and brake firmly. If the other driver does not move over, try to escape to the right, if possible. If you swerve left and the other driver corrects at the last instant, you will still crash.

Right turn - left arm extended, with elbow bent upward, at about a 90-degree angle

No U-Turn. This sign means that you are not allowed to make a U-turn.

Vehicles required to come to a stop at railroad crossings include: transit buses, school buses, and vehicles carrying hazardous materials.

You should use your horn when it is reasonably necessary to ensure safe operation and avoid accidents. If there is no immediate danger, a light tap on the horn should be all you need. If there is an immediate danger, do not be afraid to sound a sharp blast on your horn. There are, however, several occasions when you should not use your horn. They include: Encouraging someone to drive faster or get out of the way. Letting other drivers know they made a mistake. Greeting a friend. Around blind pedestrians. Passing bicyclists. When approaching horses.

Two-Way Traffic sign. The sign warns that the road changes from a multi-lane roadway to a two-lane, two-way section. It is also used along such a road.

The law says who must yield the right-of-way, it does not give anyone the right-of-way.

Remember, speed limits are posted for ideal conditions. If the road is wet or icy, if you cannot see well, or if traffic is heavy, then you must slow down. Even if you are driving under the posted speed limit, you can get a ticket for traveling too fast under these conditions.

The diagonal stripes on the barricade or vertical panel guide the driver towards the direction to which the traffic is to pass. Stripes sloping downward to the right mean the driver should bear to the right. Conversely, stripes sloping downward to the left mean bear to the left.

You must get a Washington State driver license within 30 days of becoming a resident.

Yellow lines mark the center of a road used for two-way traffic. Broken yellow lines indicate that passing is permitted.

A steady yellow traffic light means caution, the traffic light is about to change to red. Remember, you must stop if it is safe to do so. If you are in the intersection when the yellow light comes on, do not stop but continue through the intersection.

Merging Traffic sign. You are approaching a point where other traffic lanes come together with your lane. Watch for traffic from that direction.

Hospital is a word message sign or an H symbol sign. General service signs like this are accompanied by a directional message if used at intersections.