Jonathan Chiew AA253 – Spring 2009

 Develop a top-level public transportation system capable of moving 1.5 million passengers per year between two cities 500nm miles apart  Infrastructure will built from ground up  Numbers reflect conditions similar to Atlanta- Chicago route

 Develop system with trip lengths comparable to or shorter than current day systems  Design for passenger throughput increases through future system expansions – current systems are bottlenecked  Maintain passenger comfort levels and attempt to reduce overall cost

 Cost, reliability, safety, ROI, and performance are key values

 Reliability, cost, and performance are the design drivers

Vehicle arrives Load Vehicle Transport Passengers Unload vehicle Passengers arrive Vehicle preparation and inspection Passenger processing (tickets, security, etc.) Repair or Replace Reprocess or Turn Away End of Service

City 1 City 2 Pax Terminal Vehicle Depot Local Infrastructure Local Transportation Services Local Infrastructure Local Transportation Services Data & Physical Path Weather Data Service Parts / Workers Traffic Routing & Control Vehicle Commands Passengers Commands Passengers Data & Physical Path

 Applying small random perturbations (0-1) to the weighting factors and scores for each concept yielded similar results over 20 cases  Narrow concepts to just one air and one land concept – civil tiltrotor and electric high-speed rail (HSR)  Electric HSR has an absolute cost significantly higher than that of the tiltrotor system

Medium Range Transportation System 1. Vehicle 2. Terminal 3. Hangar 4. Traffic Management 1.1 Propulsion 1.2 Structure 1.3 Flight Controls 1.4 Communication 1.5 Environmental Control System 1.5 Environmental Control System 2.1 Passengers 2.2 Electrical 2.3 HVAC Ticketing 2.4 Ground Transportation Baggage Security Engine Fuel Antennas Radios Doors Lifts 3.1 Structures 3.2 Warehouse 3.3 Work Area Lighting Generator 3.5 Safety Spares Tools 3.4 Power 4.1 Ground Stations Radar Personnel 4.2 Weather Stations 4.3 Routing

Medium Range Transportation System 1. Vehicle 2. Terminal 3. Depot 4. Traffic Management 1.1 Propulsion 1.2 Structure 1.3 Flight Controls 1.4 Communication 1.5 Environmental Control System 1.5 Environmental Control System 2.1 Passengers 2.2 Electrical 2.3 HVAC Ticketing 2.4 Ground Transportation Baggage Security Electricity Motors Antennas Radios 3.1 Support Vehicles 3.2 Warehouse 3.3 Work platforms Lighting Generator Spares Tools 4.1 Signaling Radios Personnel 4.2 Train Tracks 3.5 Safety 3.4 Power Structure Power

 More iteration through the systems engineering process – specifically working through values, requirements, and concept trades  Failure analysis  Research and analyze more cost data