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!
A Stranger’s Note on My Husband’s Car Made Me Call My Lawyer
A Stranger’s Note on My Husband’s Car Made Me Call My Lawyer
When Sierra is in mom-mode, trying to get her kids off to school, she finds a sticky note on her husband’s car that makes her question where he had been the entire weekend. Wanting answers, she phones the number on the note and slowly, secrets unravel with her marriage.
It was a typical Monday morning. I was in my mom zone, trying to get the kids off to school on time. That’s when a piece of pink paper changed everything.
A close-up of smiling children | Pexels
I had just put the kids into the car and was about to put their lunch bags and backpacks in with them when I saw the bright pink sticky note plastered on the trunk of my husband’s car.
I paused, my heart pounding, and walked over to read it.
A pink sticky note on a car | Source: Midjourney
“Sit tight,” I told the kids. “I’m coming now! I just want to see what’s on Dad’s car.”
“Okay, Mom,” Natasha shouted from the backseat.
Children sitting in a car | Source: Midjourney
Sorry, I scratched your car last night. You shouldn’t park on the street though! -Neighbor from 283. This is my number in case you need anything!
Confusion and nausea washed over me. We don’t live near a house with that number, and my husband, Thomas, always parked in our garage.
A woman reading a sticky note | Source: Midjourney
“What was it?” my daughter asked when I slid into the driver’s seat.
“Nothing, honey,” I said. “Just a piece of paper that got stuck on Dad’s car.”
A woman in the driver’s seat | Source: Unsplash
Tom had just returned from a business trip this morning, so his car should have been parked at the airport the entire weekend.
My mind raced, and a sinking feeling settled in my stomach.
I knew that something was about to change.
A man wearing a suit | Source: Unsplash
“Enjoy your day, babies!” I said as the kids got out of the car at drop-off.
“Don’t forget, we have to make cookies for school tomorrow,” Natasha reminded me. “We need like sixty cookies, Mom.”
I left the kids and drove to the grocery store, needing to get everything for the cookies that we needed to bake.
An aisle in a grocery store | Source: Midjourney
“Can I help you, ma’am?” a young woman asked me as I walked up and down the baking aisle. She tied the grocery store’s apron tightly onto her.
“No, thank you,” I said absentmindedly. “I’m just browsing.”
A person tying an apron | Source: Pexels
But my mind just couldn’t stay focused at all. What was Thomas playing at?
I filled up the cart as I went up and down the aisle, getting enough ingredients for everything we needed and then paid.
Then, I decided to call Thomas and just check in.
A woman holding a phone and a card | Source: Pexels
“Hi, honey,” I said the moment he picked up.
“Hey, Sierra,” he said. “Are you okay? I’m just getting into a meeting now. I’ll speak to you later.”
And he cut the call.
A woman using her phone | Source: Pexels
“What on earth is going on?” I said aloud as I picked up gummy worms for Jake, my son.
Later, I picked up the kids and made toasted sandwiches while Natasha and I baked for her class.
A child holding a plate of toast | Source: Pexels
“Is everything okay, Mom?” Natasha asked, mixing in the chocolate chips. “You’re not helping Jake with homework.”
“Everything is fine,” I said, turning my focus back to my children.
Chocolate chips in a container | Source: Pexels
But still, my mind raced and I couldn’t shut it off. I was distracted and unable to stop the conspiracies that plagued my mind.
That evening, after tucking the kids into bed, I dialed the number on the note. The phone rang twice before a cheerful voice answered.
A little girl tucked in bed | Source: Pexels
“Hello, is this house 283?” I asked, nervously.
“Yes!” the woman said. “Who am I speaking to?”
“Sierra,” I said. “I’m sorry, but I found your note on my husband’s car this morning. Can you tell me more about the incident?”
A woman holding a phone | Source: Pexels
There was a brief pause.
“Oh, yes, I’m Jane. I’m really sorry about that. I accidentally scratched his car when I was parking last night. I live at 283 Elm Street. Are you new to the neighborhood?”
My heart pounded.
“No, no,” I said. “I’m sure Thomas was just visiting a friend. Don’t worry about the scratch, I saw the car. It’s all good!”
A parked car | Source: Pexels
“Oh, are you sure?” she asked. “I’m sure that the insurance will cover it.”
“I’m sure,” I said, turning to look out the window. “But can you tell me where exactly he was parked?”
There was silence for a moment.
When Jane spoke, her voice was softer.
A woman talking on the phone | Source: Pixabay
“He was parked right outside my house. There’s a small park across the street, and next to it, is a woman’s house. I’m sorry,” she said.
“Thank you, Jane,” I said.
I hung up, my mind reeling. Thomas had lied to me. He wasn’t on a business trip. He hadn’t even left the car at the airport.
A house with a garden | Source: Midjourney
Instead, he was at some woman’s house.
I didn’t want to confront my husband yet. I needed proof first. So, I got into bed beside him and forced myself to fall asleep.
A woman sleeping in bed | Source: Unsplash
The next morning, I gave the kids cereal for breakfast while trying to decide my next move.
After dropping them off at school, I drove to Elm Street. According to the GPS, it was about twenty minutes away from me. I looked for the park and the house next door.
Bowls of cereal | Source: Midjourney
Before doing anything else, I knocked on the door. A few moments later, a woman in her thirties opened the door.
“Hi, can I help you?” she asked.
“My name is Sierra,” I said. “I believe my husband, Thomas, was with you this weekend?”
Her eyes widened, and she covered her mouth with her hand.
A white front door | Source: Midjourney
“Oh, my God. I had no idea he was married. Please, come in. I’m Mary.”
My heart ached, and my wedding ring seemed to get tighter around my finger.
“He didn’t mention us? His family?” I asked.
Mary shook her head.
A woman hiding her face | Source: Unsplash
“No, he told me he was single. We met at a local market, and we’ve been seeing each other for a few months now. But he did say that work has been hectic recently. So we haven’t seen each other very often.”
“Mary, I need your help. I need evidence of his infidelity for my divorce lawyer. I can’t stay married to a man like this, especially with my kids. Can you help me?”
People at a farmer’s market | Source: Unsplash
Mary looked at me with determination.
“Of course,” she said. “We need to catch him in the act.”
Later that evening, Mary was going to text Thomas and invite him over. She told him that she really wanted them to have dinner together at home.
“I’ll tell him that I cooked,” she told me as I left her home. “That usually gets him here.”
A homecooked meal | Source: Midjourney
I left the kids with my mother and drove to Mary’s house, ready to catch Thomas in the act. When he arrived, Mary kissed him at the door.
My stomach turned, but I snapped the picture anyway. Then, I stepped out of my hiding place.
“Thomas,” I demanded. “What the hell is this?”
His face turned pale.
A couple embracing | Source: Unsplash
“Sierra, what are you doing here?”
Mary crossed her arms, glaring at him.
“You lied to both of us, Thomas,” she said. “How could you? And you have children?”
He stammered, trying to find the right words, but there were none.
“It’s not what it looks like,” he finally managed to say.
“Save it,” I said, holding my camera. “I have all the proof I need. I’m ready to file for divorce.”
A close-up of a camera | Source: Unsplash
“Sierra, please,” he said, trying to follow me to the car.
I brushed him off and got in, ready to head home to my children.
In the following weeks, Mary and I became unlikely friends, bonded by our shared betrayal. The most surprising thing was how quickly my children got attached to her.
On the day that the papers were finally signed, I felt the biggest sense of relief and empowerment.
Two woman sitting together | Source: Unsplash
Sure, my heart was broken, and so was my home. But as I was trying to fix myself, my children stepped in, ready to fill my life with the joy that only children can.
As for Thomas? He moved back in with his parents. He didn’t even put up a fight to make things better.
Two smiling children | Source: Pexels
What would you have done?
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