They have a place in t***sportation. I don't believe they will be cost effective as they are quite labor intensive. Big ground crews to land. Sort of like the times I got to be fireman on a friends steam crane. I made some comment and he said that it required two people to operate a steam crane while a diesel d**gline only required one operator. The amount of fuel was about equal but the steam crane used several hundred gallons of water a day. He also owned a steam shovel and I was fireman on it once. We burned three cords of firewood to put in a culvert across a road. Took all morning where a backhoe would have taken about a half hour.