Instead of protecting a right to work concept, they protect specific tasks. So even if that task becomes obsolete, you still have to pay that union guy with that specialty to stand around doing nothing.
If it weren't for all the people you'd disenfranchise from such a process, what you'd want is a business, neighborhood, city, state delegation to create a federal law that totally preempts all state and local laws, for each major project, to cut through the red tape. shrug
Oh and middle men. There's a middle man for everything. Especially in Manhattan, it's almost not hyperbole to say the doorman has an accountant, a lawyer, and a therapist. And anybody making more money than a doorman, has two or more of each of those.
Great city. And a shit hole.
EDIT: Also, I think the 2nd Ave project is a big fat classist waste of money. The Lexington Ave/Park Ave line is not that far away, Manhattan has already a very dense subway service compared to Bronx, Queens, and Brooklyn.
http://www.amny.com/transit/subway-construction-in-nyc-costs...