The fundamental need for Railway signaling has been for the protection of human life the risk of which increases when it is moving using artificial means as Railway or any other automobile.
Railway transportation was among the first means to seriously increase speed of movement and the momentum of human beings. Therefore the Railway represents the first form of threat to human life due to movement at high speed . Railway signaling also represents one of the first use of technology for protection of human life.
Safety while maintaining speed with large loads requires use of technologies at their best. Find technologies and methods used for Railway Signaling for Railroad users in the Knowlege links and other resources in this site.