The basic question is - do the work rules restrict employers from adapting to productivity enhancing technology changes over time? The goods&services in the US which go up in cost much faster than inflation are the areas where we are unable to harness labor saving productivity - education, medicine, and it would seem municipal capital construction projects.
Does your employer retain Fortran programmers on-staff in the break room because they signed a contract when Fortran was important? If your employer moved all your compute to the cloud, would you keep 100% of your now redundant datacenter staff onboard? Does your employer keep the underperforming 25% of the team perpetually and just grant paid overtime in the $100k+ to the superstars to cover the gap? Does your office building maintain an elevator operator in each cab despite having automated the elevator 50 years ago?
This is the difference between private firms and the public sector union stuff you deal with in places like NYC.
I mean yeah, it sounds like a pretty nice work environment and I'd love if my (easier/safer) office job had all that paid time, rules and work limits built in. However.. I get why it seems nothing gets done in NYC construction because of it?
A fun example - there was a 6 month project to replace a set of 2-story staircase at my subway station. The demolition work was rather swift. I assumed they were building on-site if it was going to take 6 months. Lo and behold, it was actually a pre-fab staircase they trucked in. However not only did it take 6 months to simply install that pre-fab staircase, but they ran over by a few months! They actually had to come back and re-close it and do some repairs afterwards too. Meanwhile at the corner below that train station there was a McDonalds. I laughed as I watched them gut renovate it over the course of a weekend so they could be back in business by Monday selling food to riders.
If you haven't seen NYC municipal construction up close, its hard to fathom just how screwed up it is.