Installing countdown clocks on only the lettered subway lines cost $209 million. This doesn't include the numbered lines which have had them for about 10 years which also cost hundreds of millions. In all the project took 29 years. [1]
If you want to know how much it cost to install WiFi is was budgeted for $200 million and ended up at around $300 million. [2]
Remember how that healthcare.gov Website cost hundreds of millions and was a failure? It cost $250 million and came with a $75 million maintenance cost. And then a small group came in at the end and fixed it for $4 million with yearly maintenance of $1 million? Well, the MTA has a ton of these projects.
[1] https://www.theatlantic.com/technology/archive/2015/11/why-d...
[2] https://techcrunch.com/2018/02/17/engineering-against-all-od...
