Generally, all these works of keeping an eye on the condition of the railroads was the responsibility of the rail employees who would put their lives in danger to help the trains move safely. There are not only the natural elements like earthquakes and floods that can damage the rails, but extreme heat in the seasons that experience high temperatures during summers can cause expansion of the railroads, whereas the temperature drops in the winters may cause the railroads to contract causing the cracks in the railroads.

In addition to this, if there is snowfall and extreme cold conditions persist sending the officials for the inspection of the railroads to ensure safe passage of trains is very risky and there is always a danger to the lives of the rail officials. However, with the use of drones in carrying out the inspection work the risk of endangering the lives of the officials is eliminated.

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