If you’ve been driving through U.S. cities and towns, you’ve likely noticed an increase in roundabouts replacing traditional four-way intersections. Some drivers embrace them as an efficient traffic solution, while others find them confusing or even intimidating.
But what exactly is a roundabout, and why is it becoming a preferred alternative to stop signs and traffic signals? Roundabouts are not just about traffic flow—they are a safer, more efficient, and environmentally friendly way to design roads.
Let’s break down what roundabouts are, how they work, and why they are considered one of the most effective traffic management solutions today.
What is a Roundabout? Understanding the Basics
A roundabout—also known as a rotary or traffic circle—is a circular intersection where vehicles move counterclockwise around a central island. Unlike traditional intersections controlled by stop signs or traffic lights, roundabouts operate using a yield-at-entry system, meaning:
✔ Drivers entering the roundabout must yield to vehicles already circulating.
✔ Traffic flows continuously, reducing congestion and unnecessary stops.
✔ Speeds are naturally reduced, leading to safer driving conditions.
Most roundabouts also include:
🔹 Splitter islands – Raised medians that help slow down traffic before entering.
🔹 Pedestrian crosswalks – Positioned away from the central island to increase safety.
🔹 Lane markings – Clear indicators help guide drivers into the correct exit lane.
The result? A smoother, safer, and more efficient intersection that reduces both traffic delays and accidents.
A Brief History of Roundabouts
Many people assume roundabouts are a modern innovation, but their history dates back hundreds of years.
Video : Roundabout Safety Benefits
- 1700s – Early versions of circular intersections appeared in Europe, particularly in England and France.
- 1800s-1900s – Washington, D.C. was designed with multiple traffic circles, inspired by European models.
- 1950s – The United Kingdom introduced the yield-at-entry rule, transforming roundabouts into the efficient system we use today.
- 1990s – The first modern roundabout in the U.S. was built in Summerlin, Nevada in 1990.
- Today – Over 10,000 roundabouts exist in the United States, with more being installed every year.
While roundabouts have been common in Europe and Australia for decades, the U.S. is now rapidly adopting them due to their proven safety and efficiency benefits.
Why Roundabouts Are Safer Than Traditional Intersections
One of the biggest reasons cities are replacing traditional intersections with roundabouts is safety.
1. Fewer Conflict Points = Fewer Accidents
A typical four-way intersection has 32 conflict points—areas where vehicle paths cross, increasing the risk of collisions. In contrast, a roundabout reduces conflict points to just 8.
This means:
✔ No head-on collisions
✔ No dangerous T-bone crashes
✔ Fewer high-speed impacts
According to the Federal Highway Administration (FHWA), roundabouts can reduce serious and fatal crashes by up to 90% when replacing a stop-controlled intersection. Even when replacing a traffic signal intersection, they reduce serious crashes by nearly 80%.
2. Lower Speeds = Less Severe Collisions
In a roundabout, vehicles enter and exit at lower speeds (15-25 mph), compared to the higher speeds (40-50 mph) seen at traditional intersections.
Lower speeds lead to:
✔ Less severe crashes
✔ Fewer pedestrian injuries
✔ Easier decision-making for drivers
3. Safer for Pedestrians and Cyclists
Roundabouts offer better protection for pedestrians because:
✔ Crosswalks are set back from the circular flow, allowing drivers to see pedestrians clearly.
✔ Pedestrians only cross one direction of traffic at a time, making crossings safer.
✔ Cyclists can either merge into traffic or use a designated bike path, depending on the design.
With these safety features, roundabouts significantly reduce pedestrian-related accidents compared to traditional intersections.
Efficiency: Why Roundabouts Improve Traffic Flow
Beyond safety, roundabouts are also more efficient than stop signs or traffic lights.
1. Less Waiting, More Moving
At a traditional intersection, cars must stop at red lights, even when there’s no cross traffic. In a roundabout:
✔ Traffic keeps moving – No unnecessary stops.
✔ Fewer backups – No long wait times during rush hour.
✔ Reduced driver frustration – No more waiting for a green light when there’s no oncoming traffic.
2. Eliminating Left Turns = Smoother Flow
One of the most dangerous and disruptive movements at an intersection is the left turn. Roundabouts eliminate left turns, forcing all vehicles to move in the same direction, improving:
✔ Traffic efficiency – No waiting for gaps in oncoming traffic.
✔ Driver decision-making – No confusion about when to turn.
3. Roundabouts Handle High Traffic Volumes Better
Unlike stop signs and traffic lights, which cause congestion during peak hours, roundabouts allow continuous movement, making them ideal for high-traffic areas.
Environmental Benefits: How Roundabouts Help the Planet
Roundabouts aren’t just safer and more efficient—they also have environmental advantages.
1. Reduced Fuel Consumption
✔ Less idling at red lights = less wasted fuel
✔ Lower speeds = better fuel efficiency
According to studies, roundabouts can reduce fuel consumption by up to 30%, making them a cost-effective solution for drivers.
2. Lower Carbon Emissions
Fewer stops and starts mean lower emissions, helping reduce air pollution in urban areas. Cities that replace signalized intersections with roundabouts see:
✔ Less smog and pollution
✔ Improved air quality
3. Less Road Maintenance Required
✔ No traffic signals = lower maintenance costs
✔ Roundabouts last longer than traffic lights
With less infrastructure to maintain, roundabouts save cities money in the long run.
Challenges: Why Some Drivers Struggle with Roundabouts
Despite their many benefits, some drivers remain hesitant about roundabouts. Common challenges include:
🚦 Confusion about yielding – Some drivers don’t understand that they must yield to circulating traffic before entering.
🚦 Merging issues – Drivers unfamiliar with roundabouts sometimes hesitate, causing unnecessary slowdowns.
🚦 Exit mistakes – Some drivers find it difficult to choose the correct exit and miss their turn.
However, studies show that once drivers become familiar with roundabouts, their confidence improves significantly.
Video : Principles of Intersection Safety
Final Thoughts: Are Roundabouts the Future of Road Design?
Roundabouts are more than just a traffic trend—they are a safer, smarter, and greener solution for modern transportation. With their ability to reduce crashes, improve traffic flow, and lower emissions, they are quickly becoming a preferred alternative to traditional intersections.
🚗 Safer roads, fewer accidents
🚗 Smoother traffic, less congestion
🚗 Lower fuel costs, reduced pollution
As more states adopt roundabouts in urban and suburban planning, they will likely become a permanent feature of America’s roadways.
So next time you approach a roundabout, embrace the change—it’s making our roads safer and more efficient for everyone!
The World’s Hairiest Girl Is Now Grown Up, Happily Married and Rocks Her New Style After Shaving
A girl, once labeled “wolf girl” and “monkey face” by her peers, knew that her condition wouldn’t stop her from finding happiness. Eventually, she discovered the love of her life, and her story reveals the profound impact it had on her life.
Supatra “Natty” Sasuphan, once dubbed the world’s hairiest girl, faced ridicule and fear from her classmates due to her unique appearance.
On August 5, 1999, something important happened in Supatra’s family. Usually, when a new baby is born, parents feel really happy and excited. That’s how Supatra’s mom and dad, Sompon and Samrerng, felt when she was born.
But their happiness was mixed with surprise, fear, and disbelief because the doctortold them their baby had a lot of hair. At first, they thought it was normal, but when they saw her in the incubator, they were shocked by how much hair she had. Supatra’s hair covered almost her whole body, and even the doctors in Thailand had never seen someone like her.
Later on, doctors figured out that Natty had a very rare skin disease called Ambras syndrome. This condition is so uncommon that there have only been 50 cases like hers documented in the world since a long time ago.
Ambras syndrome causes excess body hair growth, sparing only the palms, soles, and mouth interior, likely due to a sudden DNA change.
When Natty was born, and her mom wanted to leave the hospital, the doctors didn’t want to let her go because they were worried she might leave her child behind. Sompon told the doctor that she would never abandon her child, no matter what. She said, “We are lucky that she was born into our family.”
Natty grew up in a loving family, but not everyone was understanding of her condition, and she had to deal with some unkindness from strangers and peers.
As Natty grew up, her face remained hidden behind thick hair due to her incurable Ambras syndrome. Regular methods like laser removal couldn’t slow down her hair growth. At school, she faced ridicule because of her unique appearance. Kids called her names like “wolf girl” and “monkey face.”
Natty, however, didn’t understand why they teased her, as she considered herself a normal girl with just a bit more hair. She stated, “It’s the way I am.”
Natty’s teacher, Kuljira Posaeng, revealed that other kids were initially scared of Natty’s appearance, making her early school days difficult. Over time, though, Natty proved she was just like any other student. Teachers described her as hardworking with good grades, and she eventually became one of the most popular kids at school.
Natty’s teachers said she was a lively girl who loved to sing, dance, and act. Her parents treated her just like any other kid, and they never made her feel like she was less important. They took her everywhere and weren’t embarrassed that she looked different from other children.
Later on, Natty found her love.
Natty has come to terms with her condition, understanding that there’s no cure for it. She decided to keep her body hair the way it naturally grew from the time she was born, only shaving her face when she became a teenager. As she grew older, her self-esteem and self-image became more important to her, and she also found love.
She shared: “It began from friendship, then we became a couple.” Their conversations brought her happiness, and being together was comfortable, with a love she didn’t anticipate: “It was a kind of love that I didn’t expect would happen to me.”
Natty later married her boyfriend, calling him “the love of my life.”
She also posted pictures with her lover, showing her face without facial hair. Some people thought she might have been cured, but her dad explained that she had chosen to shave her facial hair to reveal her new look. Now, her eyes, face, mouth, lips, and cheeks are visible, with only her forehead covered by her head’s hair.
Natty, who has found love and happiness, is determined to lead a positive life and continue making a beautiful impact on society. She believes that everyone is beautiful and unique in their own way, and she wants to inspire others to embrace their individuality and radiate their inner beauty.
Before you go, be sure to check out another article where a woman shares her story to emphasize that body hair shouldn’t be criticized, highlighting the importance of self-acceptance and embracing one’s uniqueness.
Preview photo credit Guinness World Records / Facebook, truly / Youtube
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