Waiting on a train: How the Confederation LRT Line is taking shape

Through a chain-link fence I watch as a ready-mix truck backs into place and lowers its trough. A river of wet concrete flows to the pump truck and up a large robotic arm, the boom, which extends high above a square section of earth. The workers barely say a word to each other. They’ve done this so many times before they could probably do it now with their eyes closed. 
I have stood on this side of the fence before, watching the Confederation LRT Line come to life.
I once walked