I always wondered how they got those tracks into the street like that. It seems very complicated and indepth. But it only took 3 1/2 days according to the description, at a cost of $1 million. I’m not sure what was wrong with the old ones, of it it was just time to replace them or the city had stimulus money that they needed to spend on something. But it’s an interesting watch. I watched all 12 minutes of it, you don’t have to, after the first few minutes, it pretty much is just a repeat of everything else. I would say watch the end when their pout the concrete, that’s pretty cool, cause I was wondering how they were gonna do that. Well, I hopped for black top, but they went with concrete, but whatever, still interesting.