This has been covered in the NY Times [1] and I've read more detailed breakdowns of other projects in more transit/government focused publications. The short ve

This has been covered in the NY Times [1] and I've read more detailed breakdowns of other projects in more transit/government focused publications. The short version is that the government doesn't do a very good job with planning despite spending a ton on it and the combination of union labor and the hiring structure leads to workers getting paid several hundred dollars an hour during overtime (which happens due to the planning) and more workers performing a task than similar transit efforts elsewhere in the developed world. [1] https://www.nytimes.com/2017/12/28/nyregion/new-york-subway-construction-costs.html https://www.nytimes.com/2017/12/28/nyregion/new-york-subway-...