It appears that the developers of the Air Bus or Chinese Straddle Bus have read some of my concerns with their concept.
The new animation of China TBS Ltd attempts to take care of several of them such as accidents on the road and overhead obstructions that are difficult to remove.
This urban transit options is likely better than light rail and BRT, particularly for large cities with long, straight and wide arterial streets. Developing Asian cities should be a prime market for this concept.