To build a railroad crossing in Minecraft , you can choose between a purely aesthetic design or a fully functional redstone-powered system that reacts to passing trains.
: Use White Concrete or Quartz to create an "X" and "RR" symbol on the road surface about 10 blocks before the tracks. Minecraft- Railroad Crossing
: Use Sticky Pistons buried underground to push up Fences or Cobblestone Walls when a train is detected, creating a physical barrier. To build a railroad crossing in Minecraft ,
: Place Detector Rails about 50–60 blocks ahead of the crossing. These will send a redstone signal when a minecart passes over them. Minecraft- Railroad Crossing
: Place Red Stained Glass in Item Frames on either side of a block at the top.