It's interesting to understand where are railway crossing, but where's the difference if they're open or closed? If Waze could understand with higher precision as possibile when the train passes through that way, you could reduce even more delays due train,

Higher Level Editors could edit Railway Crossing and insert when the road is blocked, with a range of variable timing (ex. 1.30 , +-5 min.). Drivers could activate option "Avoid closed Railway Crossing" to evaluate a journey where crossing are open or alternative ways if when you travel along that road, on that time, the crossing could be closed.