Some distinguished scholars believe they are:
The failure to come to an agreement with Duke University has profoundly discouraged many advocates for mass transit in Durham and Chapel Hill. Even if Duke issues can be worked out, escalating costs are almost inevitable.
We propose that large, building-shaking trains be replaced with 6-9 passenger self-driving vehicles, propelled with plug-in technology (just like a Volt or Tesla automobile). Such vehicles would shake Duke medical buildings much less than an existing delivery truck, and the internal battery would not generate electro-magnetic interference. They would also have many other advantages.
My initial reaction to this was it is just a step above "people-pods," which have unfortunately captured the imagination of otherwise logical thinkers. In my opinion, taking the "Mass" out of Transit is a huge step in the wrong direction, and using an inappropriate example to back up your theory doesn't give me a warm fuzzy either: