Indian Railways is one of the largest rail networks in the world, through which millions of passengers reach their destinations safely every day. As of today, trains equipped with modern facilities are being run. The platform is being renovated. Let us tell you that Indian Railways is divided into 4 zones. It is considered to be the most comfortable and cheapest medium for the people, through which people can travel from one place to another with very little money. Apart from local trains, Shatabdi, Duronto, Rajdhani, Vande Bharat, Bullet Train, Tejas Express, Garib Rath, Superfast, etc. are run. Its fare is decided according to the train. During the journey, the train stops at many stations and reaches its destination.

While reaching its destination it passes through many states, cities, tunnels, bridges, rivers, forests. During this time, there are many things worth paying attention to, which attract you. However, many times people try to know these unique things on the internet, but many times they skip it after thinking at that time.

Why does the speed decrease?

Generally, all of us have traveled by train at some time or the other, during this time you must have noticed that as soon as the train is about to enter a tunnel or climb over a bridge, its speed suddenly slows down.

Actually, this is a part of the security system of the Railways, which is a process tested over the years. In a country like India with a huge rail network, thousands of trains pass through hundreds of bridges and tunnels every day. In such a situation, slow driving is a very important step for the safety of passengers. So let us know why every train reduces its speed before a tunnel or bridge.

this is the reason

• Views ahead are often limited near tunnels or bridges. Many times the slope, bend or dark path does not allow the situation ahead to be clear. In such a situation, if the train is at full speed, then the driver i.e. loco pilot is not left with time to deal with any emergency situation. Slowing down the train gives it a chance to sense and respond to signals, track conditions or any potential danger. This caution becomes even more important in rainy, foggy or dusty weather.
• Every bridge has its own load capacity. When a train passes slowly, its weight is distributed evenly on the structure. This does not put additional pressure on the joints, pillars and surface of the bridge. If a train passes at high speed, its vibration and shock can damage old bridges. That is why according to the rules of railway engineering, limited speed is always fixed on bridges and tunnels.
• Railway tracks and bridges are given scope to expand and contract according to temperature, which is called expansion gap. If the train passes too fast, the pressure of the wheels falls unevenly on these joints, which can lead to imbalance of the tracks. At the same time, when running at a slow speed, the train crosses these gaps without any jerk, due to which the strength of the track is maintained. Especially in those areas where there is a lot of difference between day and night temperatures.
• Shocks, air pressure and vibrations are clearly felt by passengers while passing through a tunnel or bridge at high speed. At slow speed the journey remains steady. Due to this, the passengers sitting inside the train neither get shock nor feel pressure on their ears. Also, the train’s sensors, brakes and control systems get enough time to function in an emergency.
• When a train enters a tunnel or crosses an open bridge, the air around it changes suddenly. At high speed, this pressure and vibration can be so intense that the stability of the train is affected. This change remains balanced when moving at a slow speed.

(Disclaimer: The information provided here is based only on beliefs and information. Read does not confirm any belief or information.)