@brennansv My comment, to be clear, is orthogonal to tunnels.
Tunnels are great.
What is opposite of great is that proven, efficient and safe forms of #transit must now compete with this "Vegas Loop" absurdity - a "transportation system" that trades all three items in my comment for a low upfront cost.
Some of these "Vegas Loop" stops (like the one mentioned in the article) had a monorail station already there!