1. 1. Acy M. Kottali, abhijith S, Ajmal M M, The research work carried out by above mentioned authors mainly focus on preventing of skilled worker to operate railway gate microcontroller and IR sensors based system to control gate opening and closing by receiving the signals accordingly
   2. Banuchandar, V.kaliraj,p.Balasubramanian, The paper written by these authors mainly put a spot light on two things; one is the reduction of time for which the gate is being kept closed.
   3. Krishna, shashi yadhav, these paper written by this author provide a safety to the road users to reduce the accidents by using unmanned
   4. Hnin Ngwe Yee Pwint,Zaw Myo Tun, the paper written by these author discusses on the method of signal lights on the automatic bridge of opening the railway gate.