4.0 Development Phases-The Hybrid PT System will develop through 3 generations or phases of design.

4.1Phase I:

Using electric propulsion during transit with availability of an emergency gas, diesel or compressed natural gas (CNG) backup, and some operator input. A series of on-board and Grid internal computers would automatically determine the nature of traffic, a dangerous condition or collision potential, and adjust the speed of an HPR vehicle to a safe velocity or bring it to a stop.

4.2.Phase II:

Employing a fully computerized system of on-board and external computers, requiring no operator input while transiting on the Grid. The System would allow each car to move in close, or direct, contact with the car in front in order to maximize the suction airflow advantage (or "Draft Effect" commonly seen in automobile racing) reducing energy requirements and minimizing the opportunity for collision at a high differential speed. Phase II would provide occupants, including the driver, the luxury of turning their attention away from vehicle operation and allow for safe extracurricular activities such as using computers, watching video presentations, texting, reading etc. It is conceivable that the HPR System might be developed to the degree that an HPR vehicle operator could fully relax or sleep until his destination had been reached.

4.3Phase III:

The HPR System will evolve to the point of employing magnetic levitation for propulsion and directional stability with Phase I and II backup (See Section 16, Magnetic Levitation).