all sharp curves on existing track shall be eased to a radius of 2000m.this will reduce super elevation and also effect of centrifugal force on coaches.coaches shall be fitted with dead load (hung) at underside of frame of coaches to reduce effect of centrifugal force.large area of existing track on trunk routes is straight.all such curves shall be fitted with check rails inside to avoid derailment.second attempt shall be to reduce dead weight of coaches by introducing special alloy steels for all type of wagons.budget shall be allocated for such work.delhi-kucknow,delhi-jaipur,delhi-chandigarh,pune -mumbai routes shall be selected.railway minister shall select a team to work on this.this is practical approah.millions of passengers will be getting profit.no need to lay new track.
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I suppose railways in India is way beyond imagination of engineering. Putting high speed trolley is a kind of scar. They have performed the duties. In high speed link fail happen rail has all knowledge even a kid of 3year will knows this.