by carajul
Has anyone here ever heard of "island protection only" with regard to grade xings? As I kinda undertand it, this is a situation where the grade xing flashers are not activated until the train is literally at the road xing itself. Just the trackage in the road (the island) triggers the flashers. This would be useful on trackage that is like 5mph when a train stops before entering the roadway where the 20 second advance flasher warning isn't needed as on higher speed lines.