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EMU vs SL-DMU vs DD-DMU Assumptions • 2035 EIR Operation – 114 trains per day • Try to maintain similar operating schedule – maximize station stops and minimize trip time • San Jose to San Francisco (Gilroy shuttle independent of EMU/DMU) • New EMUs or DMUs, Locomotives and coaches retired or moved to Gilroy • Fuel = $4.0 per gallon • Electricity = $.09 per kWh SL-DMU = single level DMU; DD-DMU = double deck DMU
Performance Comparison Single Level Double Deck Performance Item Bi‐Level EMU DMU DMUTrain Length (number of cars) 6 8 4Seating Capacity (passengers per car) 100 78 180Powered Cars per Train Half All All*Estimated One Way Energy Use 1,723 kWh 122 gal 73 galAcceleration Highest Middle Lowest*Even with all cars powered, the number of station stops must be reduced to maintain common trip time
Infrastructure Comparison Bi‐Level Single Level Double Deck Infrastructure Issue Existing EMU DMU DMUTrain Length (number of cars) 5 6 8 4Platform Length (feet) 519* 500 680 350Platform Height for Level Boarding (inches) 8** 25 25 or 48 48Car Height (nominal clearance) 16‐2" 15‐1" 14‐7" 19‐8"Will it fit in existing tunnels? Yes Yes Yes NoWill it fit in current design for DTX tunnel? Yes Yes Yes NoAdditional ventilation required? Yes No Yes YesOverhead Traction Electrification Required? No Yes No NoRed text indicates infrastructure modifications needed*Shortest platform, others are longer**Existing 8" platforms do not accommodate level boarding
Lifecycle Cost Comparison Single Level Double Deck Cost Item Bi‐Level EMU DMU DMU*Fleet Size 160 214 106Fleet Cost $$$ $$$ $$$Electrification Capital Cost ($785 mil) $$$$ ‐ ‐Extend Platform Length (feet) ‐ $$ ‐Raise Platforms $ $ $$Bore Existing Tunnels ‐ ‐ $$Increased Bore in DTX ‐ ‐ $$Ventilation of DTX for Diesel ‐ $$ $$Maintenance and Storage Facilities $$ $$ $Energy and Vehicle Maintenance (30 yrs) $$$$ $$$$$ $$$$Lifecycle Cost over 30 Years $$$$$ $$$$$ $$$$$$ > $20 mil$$ $20 mil - 100 mil $$$$ > $500 mil -$1 bil$$$ $100 mil - $500 mil $$$$$ < $1 bil
Recommended Technology: EMU• Proven technology and large supplier pool = low risk• Frequent service (6 TPH or more during peak)• Highest acceleration allows service to maximum number of stations• Manageable fleet size• Fits current platform lengths• Lowest local emissions (noise and air quality)