A mass transit system can potentially be a very valuable investment, but the success is dependent on dense development near the stations. A line along the 6th ring road wouldn’t be very efficient because there’s no real density there. In order for it to be effective, you’d have to be able to walk somewhere.
I think we should start the metro project only in the densest areas of Kuwait, places that are already dense and walkable. Salmiya, Hawally, Farwaniya and the City are the best options.