1. An Autonomous Robot Framework for Path Finding and Obstacle Evasion.;I. S.Bajwa;International Journal of Computer Science and Telecommunications,2010
2. Automated Unmanned Railway Level Crossing System.;J.Banuchandar;International Journal of Modern Engineering Research,2012
3. Automation of Railway Gate Control Using Microcontroller.;A. K.Dewangan;International Journal of Engineering Research & Technology,2012
4. Davies, D. (2000). Automatic Train Protection for the Railway Network in Britain.
5. Engineers Garage. (n. d). Retrieved from http://www.engineersgarage.com/electronic-components/lm324n-datasheet