The Basics of Traffic Laws

Traffic laws are a set of rules put in place to ensure that traffic moves smoothly and safely. Breaking these rules can lead to traffic jams, which can deprive people of valuable man-hours, or even worse, accidents that can cause serious injuries and deaths.


Traffic laws vary by State and even between localities within States. Various efforts have been made to document the diversity of traffic regulations, using different methodologies and perspectives.

Speed Limits

Every State has a basic speed law that requires drivers to operate their vehicles at a reasonable and prudent speed for current conditions. Drivers may not exceed a posted speed limit without a valid reason such as the roadway design, traffic and weather conditions. Speeding is involved in nearly one-third of fatal crashes.

In order to establish appropriat 인천운전연수 e speed limits, most States and localities conduct engineering speed studies to determine the free-flow operating speed. These speeds are not only based on average roadway capacity but also include roadside development, accident experience, and design speed. Many States use an 85th percentile as the major factor in establishing an appropriate speed limit, but other factors may be subjectively considered.

The speed limit that is posted could be the statutory speed limit established by the State legislature, or it may differ from it. This is because cities and counties sometimes establish their own engineering speed limits that take precedence over the State limit. In some States, the statutory speed limit is determined by a formula based on an engineering speed study that takes into account the location and type of roadway.

When lower maximum speed limits are implemented and enforced closely to the new limit, speed levels tend to decrease and traffic fatalities and injuries decline (ASHTO, 2010). However, simply lowering the limit is unlikely to reduce accidents on its own; other speed management countermeasures must be employed.

Stop Signs 인천운전연수

The stop sign is one of the most commonly seen traffic signs. It is typically red and octagonal with white letters. It is used to assign right-of-way at intersections and it prevents drivers from speeding through them. It may also prevent crashes at the intersection. However, many drivers do not obey the rules of stopping at stop signs. For example, some drivers crawl forward at under 5 mph – this is called a rolling stop and it is illegal.

Other drivers don’t even come to a full stop. In order to avoid a rollover accident, it is important for drivers to make a full stop before entering the intersection. If you’re not sure whether or not a stop sign is ahead of you, it’s best to stop a foot before the line so that you can fully see all sides of the intersection.

Some stop signs are difficult to see because of trees, bushes, buildings, bus stops or other obstructions. It is the responsibility of property owners or the local government to ensure that stop signs are visible for motorists. If they aren’t, drivers can be ticketed for violating traffic laws and causing an accident.


The YIELD (or yielding) laws in traffic law are designed to prevent car accidents. Drivers who fail to yield the right of way at intersections or during lane changes can cause serious injuries to pedestrians and other motorists. This is why it is important to drive defensively and follow all traffic laws, even the ones that seem unnecessary or confusing.

Yield signs and lines are typically posted at intersections or other high-traffic areas. The YIELD sign instructs drivers to check behind them for cars approaching from the opposite direction or other streets at an intersection, and to give up their right-of-way to any traffic that is already there. Drivers must also be vigilant about checking for bicycles and pedestrians. Some countries prefer to use the term GIVE WAY instead of YIELD, but both instructions are the same.

New York traffic laws also mandate that drivers must yield to special vehicles stopped on the paved shoulder of a road. These include emergency vehicles, towing vehicles, coroner vehicles, and school buses. The driver who fails to yield to these vehicles can be found guilty of a violation under Vehicle and Traffic Law Article 1122-a. This law went into effect in 2018 and is intended to make highway safety better for everyone.


In most states, drivers are required to keep their vehicles within their lanes of travel. Drivers may change lanes only when it is safe to do so, and they must remain a reasonable distance behind the vehicle in front of them. If you are unsure about the rules of your state, consult a traffic attorney or your DMV for information.

While state laws differ somewhat, all follow a general set of guidelines established by the Manual on Uniform Traffic Control Devices. Each state has the ability to customize its signs but must meet the standards established by the national body to qualify for federal highway funds.

It is important for motorists to understand the purpose and meaning of road signs and signals, especially those that are less common in the United States, such as four-way stops and roundabouts. Drivers should also know how to properly pass an emergency vehicle, which requires pulling over and waiting until the flashing lights and siren are off.

Successful past traffic safety campaigns that changed driver behavior have demonstrated the necessity of a “three Es” approach, consisting of Enactment (of a law), Education of the public about a specific safety hazard and rigorous Enforcement. While these efforts are necessary, there is still a need for additional safety solutions. For example, there is a need for a national ban on text messaging while driving and restrictions on cell phone use by teenage and novice drivers.