i need this for my projectin my last semister

abtract for a railway anti collision system with phis plate removal sensing and auto track changing

A Railway Anticollision System with Phis Plate Removal Sensing and Auto Track Changing

1) if two train approches each other both should stop
2) If one train is behind another, front trains speed should increase, approching trains speed decreases
3) If they are far away , nothing should happen
4) If there is a probability of accident, and if alternative line is avilable, it must take that path.
5) If a Phis Plate is removed ahead of a train, the train must stop.
6) It must automatically start the journey once the plate is restored.