Why is the Speed ​​Limit in Tunnels Lower than Normal?

The risk of an accident in tunnels is about half that of an open road accident. The most important reason for this is because the normal driving conditions of the drivers change in the tunnel. more careful is the behavior.

However, the risks that may occur in the tunnel as a result of an accident are much higher. Although the accidents resulting in fire are less frequent than traffic accidents, they are associated with fire and smoke that may occur in the tunnel. catastrophic potential will be higher than in a normal vehicle accident.

Do we get nervous going through tunnels?

In road tunnels, drivers often enter a dim light condition (“black hole“) slow down to adapt and increase their position near the tunnel right wall while driving.

In addition, entering the closed environment and sudden changes in the visual environment cause the driver’s pupils to dilate and the heart rate to increase. As a result of all these researches, it has been found that drivers have a negative impact on road safety. tension And anxiety came to the conclusion that they felt.

Short tunnels are more dangerous!

According to the statistical studies, short tunnels are compared to long tunnels. higher accident rates was found to exhibit.

These accidents are mostly in short tunnels. entrance And exit caused by sudden deceleration/acceleration in the tunnel zones, and decreased attention deficit in long tunnels. in the middle found to occur.

The most common types of accidents in the tunnel:

Rear-end collisions in tunnels based on Singapore CTE tunnel information in 2006–2008 70% of all accidents is known to be.

According to police studies, tunnel accidents are often caused by drivers’ aggressive lane changes and high speeds. back bumps may cause.

The most dangerous scenario that can happen to you in the tunnel: Tunnel fire!

The fire in the tunnels may cause the death of those in the tunnel. heat And produces toxic fumes. It is also more difficult for firefighters and ambulances to reach the scene of such accidents.

As a strong fire can cause great damage to the structural condition of the tunnel, the tunnel can be completely or partially destroyed. to shut down why could it be.

Loss of life in highway tunnel fires by heavy vehicles has a strong relationship. Approximate death toll in tunnel fires 71%of heavy vehicles, 24%normal vehicles and 5%occurs in fires involving trucks or trucks.