India is on the list. That tells you a lot about the selection criteria: governmental efficiency is simply not a criteria. Nor is passenger wealth a criteria.

India is on the list. That tells you a lot about the selection criteria: governmental efficiency is simply not a criteria. Nor is passenger wealth a criteria. My guess is that these routes are chosen based on population of the end points, distance, and geography. California loses based on geography: too many massive mountain ranges you would need to tunnel through.