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In human life many accidents happens, but some accident is of such a type that it become imprinted in our mind for many years. And its reminding exerts very painful feeling. Such accidents happened with me before around six years.
It was month October. The sky was clear and cloudy. There was mild raining also. I reached at town of Valigonda early in the morning at 8:00 o’clock. It was very unfortunate day as this day always show me the scene of disaster.
The Valigonda rail disaster occurred on 29 October 2005 near the town of Valigonda, south of Hyderabad in the Indian State of Andhra Pradesh. A flash flood swept away a small rail bridge, and a "Delta Express" train travelling on it derailed at the broken section of the line, killing at least 114 people and injuring over 200.
The train was traveling south at night, packed with hundreds of sleeping holiday makers visiting relatives for Divali, when a huge irrigation tank situated up stream from the rail lines ruptured, sending thousands of gallons of water down the channel, destroying the bridge in the darkness. When the passenger train hit the broken section a short time later, nobody had reported the damage, and the engine and seven coaches of the train disappeared into the gap created by the broken line. Four coaches crashed into a field close to where the track had been, whilst three more fell into the channel and were swept farther afield into deeper water, where most of the fatalities occurred.
In the day following the accident, the Indian Navy supplied divers, who dived into the flood waters with blow-torches to try to rescue people who may have been trapped in air pockets in the sunken carriages. Reportedly, several people were rescued this way. The army and air force also provided assistance with rescue, medical and heavy lift helicopters, by collecting bodies and maintaining security at the site.
The area had been lashed by monsoon rains for several weeks before the accident, which had waterlogged fields and over-filled the irrigation tank, which had ruptured due to unknown factors exacerbated by the heavy volume of rainfall. The flooding had also destroyed several roads, hampering efforts to get emergency personnel to the scene quickly. India's Junior Transport Minister commented on the disaster:
Preventive Measures that could be taken:
At times of heavy rain, railways could place washawaymen, like fog signalmen at culverts and bridges to warn trains of dangerous washaways. This would be expensive, and besides, the washawaymen would not be able to tell if the bridge has been merely weakened, which is almost as dangerous.
Warning signals can operate automatically, but would not be foolproof if the bridge is merely damaged. False warnings would also delay traffic. This would also be costly. The warning signal needs to be 1 or 2 km away from the bridge so that the warning can be given in time.
In addition, some washaways occur when it is not raining, such as when a dam collapses or a lahar occurs.
One useful measure would be to post signs with the telephone number of the relevant signalman, so that passersby can more easily give warnings.