Trains are actually an excellent platform for all the equipment necessary to run fiber. They can have not only the heavy trenching equipment, but the endless sp

Trains are actually an excellent platform for all the equipment necessary to run fiber. They can have not only the heavy trenching equipment, but the endless spools of fiber on hand as well. They literally drop a plow into the ground and lay the fiber in the resulting trench, then just drive the train forward to lay more cable. Very efficient if the route's planned out in advance. Some interesting examples: https://www.quora.com/How-does-a-fiber-optic-cable-laying-machine-work-How-does-it-lay-a-length-straight-cable-that-is-longer-than-the-angle-makes-it-capable-of-reaching https://www.quora.com/How-does-a-fiber-optic-cable-laying-ma...