Longest straight road in the world runs for 149 miles but engineer warns it's more dangerous than you think
Published on Feb 23, 2026 at 5:25 PM (UTC+4)
by Grace Donohoe
Last updated on Feb 23, 2026 at 7:05 PM (UTC+4)
Edited by
Emma Matthews
This is the world’s longest straight road, but it turns out that it may have more dangerous elements than you’d initially think.
Located in Saudi Arabia, the stretch has been internationally recognized as being impressive, at over 100 miles in length.
Driving to any destination creates a sense of danger, as the road and other drivers can be unpredictable, but this road takes things a step further.
One civil engineer has revealed why such a straight road carries a high risk.
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The longest straight road in the world
Roads come in all different shapes and sizes, and over in Saudi Arabia, one stretch of road has broken records.
It consist if a part of Highway 10 that serves the purpose of connecting the Haradh area to the west coast, according to Guinness World Records.
It stretches 240km, or 149 miles, and does not have a single bend or niggly up or downhill sections.
For those looking to drive the longest straight road in the world, then you’re looking at a journey of around two hours.
But, wait, there’s more.
It may not be as straightforward as it seems.
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This engineer offered a warning
Talking to X, one person, who claims to be a civil engineer, issued an important warning about the road.
“As a civil engineer, this is the most dangerous road you can drive on,” said the engineer.
Many were trying to guess the reason, offering their own theories.
“Is it because people will drive fast?” asked one social media user.
“How? It’s just a straight line. Even a newbie will be able to drive here,” said another.
“Highway hypnosis?” questioned a third.
Well, it seems the engineer revealed all, explaining it was dangerous due to fatigue.
This could be due to repetition of just completing the same driving actions for two hours at a time, and your feet, hands, or eyes not having to switch up.
Would you like to try the longest straight road in the world?
You’d have to be alert and prepared to put in the time, that’s for sure.
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Beginning her career as a lifestyle reporter and social-media manager, Grace joined Supercar Blondie in February 2025. Since coming on board, she has thrown herself into the busy daily writing schedule. Her editorial sweet spots include writing about luxury properties and the quirky features inside them that the one percent are investing in, as well as groundbreaking advancements in space exploration.
