Highway in the Mountains of Veracruz Requires Drivers to Temporarily Drive Against Traffic to Navigate Dangerous Curves and Ensure Safety on Winding Stretch of the Acultzingo Mountain Range in Mexico

Written by Caio Aviz

Published on 04/03/2026 at 15:36

Trecho de estrada na Serra de Acultzingo, em Veracruz, no México, utiliza sinalização especial que orienta motoristas a mudar de faixa e entrar momentaneamente na contramão para realizar curvas com mais segurança.

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Unusual Road System Guides Drivers to Change Lanes Before Corners to Improve Visibility and Reduce Accident Risk on Mountain Roads

A curious feature of road engineering draws attention in the Acultzingo Mountain Range, in the state of Veracruz, Mexico.

At certain points on the road, drivers encounter signs that instruct them to temporarily drive against traffic.

Although the practice may seem contradictory at first glance, it was created precisely to increase safety in extremely tight curves with poor visibility.

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Controlled Lane Change Guides Drivers

As they approach certain curves, drivers find signs and markings on the asphalt indicating the lane change.

First, the driver crosses over to the opposite lane before entering the curve.

Then, they navigate the curved section temporarily using the opposing lane.

Shortly after completing the curve, the vehicle returns to its original lane.

This process is organized since the entire maneuver is indicated by clear signage on the road.

When the instructions are followed, vehicles can traverse the mountainous section with greater predictability and safety.

Mountainous Terrain Imposed a Different Solution

The necessity for this system arises primarily due to the geographical features of the region.

The road that crosses the Acultzingo Mountain Range traverses steep slopes and mountainous areas.

Therefore, various curves are extremely tight and present limited visibility for drivers.

Under conventional traffic conditions, these curves could increase the risk of collisions.

In light of this challenge, the solution found was to temporarily reorganize the flow of the highway.

In this way, the route allows vehicles to make the turn with a wider radius and better visibility of the road.

Curiosity of Road Engineering in Mexico

According to published reports, the section of road located in Veracruz has become known precisely for this unusual feature.

Drivers and tourists passing through the region often find it surprising to notice that driving against traffic is part of the route at certain points on the highway.

Despite the initial surprise, the system operates safely when the instructions are followed.

The signage clearly indicates where to initiate the lane change and where to return to the original lane.

Thus, traffic flows in an organized manner, even in a scenario that seems to contradict traditional traffic rules.

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When Driving Against Traffic Is Part of Safety

Although it seems strange, the method demonstrates how road engineering can adapt to the limitations of the terrain.

In mountainous regions, conventional solutions are not always sufficient to ensure safety.

Thus, adjustments in circulation methods can be adopted to improve visibility and reduce risks in the most critical curves.

In this specific case, the temporary contraflow does not represent a driving error, but rather part of the road’s design.

The experience also ends up becoming a curiosity for those traveling through the mountainous region of Veracruz.

Would you feel comfortable driving on a road where, for a few meters, the contraflow is actually the safest route?

Highway in the Mountains of Veracruz Requires Drivers to Temporarily Drive Against Traffic to Navigate Dangerous Curves and Ensure Safety on Winding Stretch of the Acultzingo Mountain Range in Mexico

Unusual Road System Guides Drivers to Change Lanes Before Corners to Improve Visibility and Reduce Accident Risk on Mountain Roads

Controlled Lane Change Guides Drivers

Mountainous Terrain Imposed a Different Solution

Curiosity of Road Engineering in Mexico

When Driving Against Traffic Is Part of Safety

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Highway in the Mountains of Veracruz Requires Drivers to Temporarily Drive Against Traffic to Navigate Dangerous Curves and Ensure Safety on Winding Stretch of the Acultzingo Mountain Range in Mexico

Unusual Road System Guides Drivers to Change Lanes Before Corners to Improve Visibility and Reduce Accident Risk on Mountain Roads

Controlled Lane Change Guides Drivers

Mountainous Terrain Imposed a Different Solution

Curiosity of Road Engineering in Mexico

When Driving Against Traffic Is Part of Safety

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Great Atlantic Sargassum Belt has ceased to be a climatic phenomenon and has become a biological system that feeds on itself, with 8,000 kilometers in length, 37 million tons of algae, and scientists confirm that it is now permanent.

A British company has installed in the middle of the ocean the world’s first floating platform that generates electricity 24 hours a day from the temperature difference between the surface and the depths of the Atlantic, without relying on wind or sun.

Brazil will harvest a record crop of up to 357 million tons of grains, but it does not have the capacity to store a large part of it. The storage deficit has reached the highest level in history and is equivalent to almost the entire production of Argentina.

Engineers had to pour concrete mixed with tons of ice throughout entire nights in the Dubai desert to erect the Burj Khalifa; any carelessness could clog the pipes half a mile high.

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