To avoid contributing to chronic traffic congestion, you should not "rubberneck." That is, you should not slow down to look at out-of-the-ordinary things.

If your vehicle breaks down on a highway, make sure other drivers can see it. Get your vehicle off the road and away from traffic if at all possible and turn on your emergency flashers to show that you are having trouble.

If a road has four or more lanes with two-way traffic, drive in the right lanes unless you are passing or turning left. If you are on an interstate highway and are driving below the speed of the flow of traffic, use the right lane.

This sign indicates that a stop sign is ahead.

The penalties for driving under the influence are always the same, whether you are driving under the influence of alcohol or any other drug (including legal medications).

You should drive more slowly at night than during the day because it is not possible to see as far ahead at night. You should make sure that you can stop within the area illuminated by your headlights.

When approaching a railroad crossing, you must look, listen, slow down, and prepare to stop. Let any trains pass before you proceed.

There is zero tolerance for alcohol use by drivers under age 21. If you are under 21, the detection of any trace of alcohol in your system will result in stiff penalties, including the suspension of your license for two years.

A downward-facing triangular sign is always a yield sign. Drivers must be prepared to slow down or stop when approaching a yield sign.

A steady green traffic light indicates that the driver may continue through the intersection. The driver should yield to traffic or pedestrians already in the intersection and proceed when the intersection is clear.

This sign is displayed on slow-moving vehicles.

A triangular yellow sign with black lettering indicates a no passing zone. It will appear on the left side of a two-way, two-lane roadway at the beginning of an area where prohibitive pavement markings are also used.

There are number of causes for which a person's license can be revoked or suspended in Tennessee. Among these are fraudulently altering a driver license or receiving 12 or more points on a driving record within a 12-month period. Drivers under age 18 may receive notice of license suspension or revocation if they acquire six points within a 12-month period.

Alcohol, in any concentration, is a depressant. It slows all nerve impulses and bodily functions, resulting in a lessening of inhibitions and negatively affecting a consumer's ability to concentrate and stay alert.

Drivers should be alert to the presence of crossing guards when near a school and must always obey their instructions.

Orange-colored signs indicate construction areas. Proceed with caution.

Keep a space between your vehicle and parked vehicles. A person may step out of a parked vehicle or out from between the parked vehicles without looking. A driver may begin moving their vehicle before realizing you are there.

A flashing yellow light at an intersection indicates that drivers should slow to a safe and reasonable speed and proceed with caution.

When turning, you should look to the rear and both sides of your vehicle to ensure it is safe to proceed before making the turn. Adjust your speed to safely complete the turn.

If you are driving under the influence and are involved in a crash that results in death, you will be charged with vehicular homicide. A conviction for vehicular homicide may result in a fine and prison sentence.

In 2015, 34 percent of all traffic fatalities in Tennessee were alcohol-related. In 2016, approximately 27 percent of all traffic fatalities were alcohol-related.

You may encounter unexpected conditions in a construction zone. For the safety of yourself, other drivers, and construction workers, drive with extraordinary caution.

Being under the influence of alcohol affects your judgment. Good judgement is necessary to react appropriately to things that you see or hear while on the road. Even if you are below the legal blood alcohol limit, consuming any amount of alcohol is likely to affect your ability to drive safely.

If an oncoming driver fails to dim their headlights, look toward the right side of the road. This will keep you from being blinded by the other vehicle’s headlights and allow you to see enough of the road to stay on course. Do not try to retaliate by keeping your bright lights on.

Blood alcohol concentration (BAC) is a measure of the percentage of alcohol in a person's blood. The higher the BAC, the more impaired a person is.

By definition, blind spots are areas that cannot be seen using your mirrors. To check your blind spots, you should look over your shoulders.

When leaving an interstate, you should maintain your speed until you enter the deceleration lane, at which point you should reduce your speed to the exit ramp's posted advisory speed.

Signs with a red circle and diagonal line over a black symbol indicate that the action represented by the symbol is prohibited. In this case, the sign indicates that left turns are prohibited.

When leaving an alley, driveway, or parking lot to enter a roadway, you must stop before driving onto a sidewalk or sidewalk area. Pedestrians and existing traffic have the right-of-way.

Your vehicle's blind spots are the areas that you cannot see in your mirrors. Look over the appropriate shoulder to check your blind spot when changing lanes.