Table of Contents
Why do trains slow down sometimes?
When two trains cross each other, there might be a change in air turbulence around the train. This causes the train doors to slam against. And for the feel of slowing down, its a feel caused by relative velocity.
Why does a train rattle on a bridge?
When a train passes over a bridge, vibrations are generated owing to irregularities in the wheels and the track. Compared with high-frequency noise (such as wheel–rail noise), low-frequency noise has slower energy attenuation upon environmental radiation and is thus transmitted over longer distances.
Why do train whistles while crossing a bridge?
Many may wonder why trains blow their horn in the same sequence when they are approaching a grade crossing. So, why do trains blow their horn? Trains are mandated by the Federal Railroad Administration (FRA), to sound the horn in a long, long, short, long sequence in order to alert motorists at grade crossings.
Why do trains whistle on a bridge?
Train whistles are safety devices that alert motorists and pedestrians to the presence of an approaching train. They also warn trespassers away from the rail right-of-way. In either case, the whis- tle must be sounded while approaching the crossing and until the train has fully occupied the crossing.
Why are Indian trains so slow on an average?
Indian trains are “slow” on an average due to their inability to maintain top speeds uninterrupted over long periods of time. Look at the speed chart of the Bhopal – NDLS Shatabdi for a particular run. Ideally it’s run should be more or less at constant speeds like that of the last 10 minutes.
What are the problems faced by Indian Railways?
Indian Railways’ problems are analogous to its roadway counterparts. Just like our (inadequate) roads are jammed with vehicles, our rail tracks are also literally jammed with trains. The biggest problem Indian Railways face is that there are way too many trains and way too less tracks for them to run on.
Is the top speed of our trains too low?
It is not the top speeds of our trains that are low, but the average speeds. The Purushottam Express for instance is allowed a top speed of 130 kph with its LHB rake and all, but has an average speed of only 60 kph. If you were to consider top speeds alone our trains are doing quite well.
What is the top speed of a train in India?
Current top speeds of Indian Railways trains are 110-120 kph for most (old style) ICF coaches and 130-140 kph for AC LHB trains on most important trunk lines, and we have locomotives capable of hitting 160 kph, all of which are actually quite good for everyday non-bullet train setups.