About Me

 My Name is Gurubaran Magesh.  I am studying in 4th Standard. I live in Bengaluru. I huge interests are in Geography (mainly political), Maps and Railways. I will write about what I like and learn in this blog.  

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Rail Gauges

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When you go on a train you may wonder how the train stays firmly on the rails. It does so because the inner distance between 2 rails is kept the same through out the track with millimeter accuracy. This inner distance is called Rail Gauge. It also determines the size of your train coach / car.     There are quite a few rail gauges out there, but I’m going to focus on the four main ones. (Everything seems to have four main ones, like Vedas, directions, oceans etc.) Indian Gauge or Broad Gauge – 1676 mm   Broad gauge is the most commonly used gauge in India and is also the widest gauge. It is also called as Provincial , Portland , or Texas gauge in North America, Trocha Ancha (which is Spanish for Broad Gauge ) in Argentina. It is also used in Pakistan, western Bangladesh, Sri Lanka, Argentina, Chile and BART metro in San Francisco. Standard Gauge – 1435 mm Standard Gauge is the oldest and most commonly used gauge in the world.   In India, it is used only ...
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Why Metro Rail?

  There are quite a few modes of rapid transit out there like trams, buses, metros, suburban rail etc. In India a little more than a dozen cities have Metros, including Mumbai, Chennai, Bengaluru, Delhi and many more. But why are cities choosing metros? Why not trams or suburban rail? Let’s talk about that.   Now you want to know why cities are choosing metros for their rapid transit, right? Cities choose metros mainly to move people from one part of the city to another, unlike say suburban rail which moves people from the outside to the inside of a city and vice versa. Now, you may think “why are cities building expensive metros instead of much more cheaper trams of Buses?” there are 2 main reasons:   1) Capacity 2) Traffic Let me explain.   C apacity is the most important reason cities build metros.   Metros  can carry huge swaths of people and still operate every 2 or 3 minutes. Trams, on the other hand  have only about 3/4s the capacity of a metro....
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How to build Train Tunnels

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  Most   of you must have enjoyed a train ride through a tunnel. Have you ever thought about how these tunnels are built? There are few standard methods in which the tunnels are built. Let’s have a look at them.   Cut-and-cover Method- Cut and cover is the oldest method of tunnel construction.  You dig and excavate the ground to create a hole. Build all the infrastructure you need for train to go such as tracks and signals. Then cover it up. So simple right? It is like constructing the drainage network in any city. It is mostly used for construction of Shallow tunnels, tunnels for underpasses, and in flat terrains.  London Underground (which is 100 years old) is a good example of it.  Tunnel Boring: Bored tunnels are as the name suggests made by Tunnel boring machines which do look quite boring but the method itself is quite interesting This method is used, when you need to build tunnels at greater depths and also when ground excavation is not possible. ...
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