One of the biggest problems with that approach in NYC is that they simply don't know what's under the streets. There's multiple articles about the issue, but t

One of the biggest problems with that approach in NYC is that they simply don't know what's under the streets. There's multiple articles about the issue, but this article from the NY Times does a good enough job illustrating the problem: https://www.nytimes.com/interactive/2016/08/18/nyregion/new-york-101-streets-repair-and-maintenance.html https://www.nytimes.com/interactive/2016/08/18/nyregion/new-...