Santa Clara Valley Transportation Authority operates 50 cars on a 28 mile system

Car Specifics
Manufacturer:  UTDC
Vehicle type: Double ended articulated
Developed by: UTDC for Toronto Transit Commission
Date in service: 1987
Number of cars ordered: 50
Number of cars still in service (to date): 50
Number of trucks: 3
Number of axles: 6

Body
Underframe:  Low-alloy, high-tensile (LATH) steel
Superstructure: LATH steel
Interior Finish:  Melamine trim panels
Floor: Corrugated steel with rubber non-slip surface on aluminum sheeted plymetal overlay
Steps: Removable stainless steel
Doors: Four double bi-fold doors on each side
Windows: Top cant-opening windows and push-out hinged emergency exit windows
Seats: Stainless-steel with cushion inserts.

Suspension, Propulsion, Braking
Trucks/Bogies: Mono-motor-driven trucks at each end; one trailer truck beneath the articulated section
Suspension: Rubber primary, air-bag secondary
Truck centers: 28 feet, 3 inches (8,611mm)
Wheels: Resilient 28 inch
Wheel base: 6 feet, 3 inches  (1,905mm)
Track gauge: 4 feet,  8 1/2 inches (1435mm)  AA Standard
Motors: one DC motor per power truck; 195kW continuous at 750V dc.
Gear ratio: 5.125:1.
Gearbox: Fully sealed; transverse mounted with Hypoid single reduction gears. 
Slip/slide protection: Controlled by propulsion electronics - Default to Emergency braking continuous more than 10 seconds
Service Brakes:  Dynamic (non-regenerative electric braking on each power truck; Disc brakes (mounted on each axle).
Track Brakes: Two mounted on each truck.
Air compressor: Two-stage system with a desiccant drier.

Vehicle Capacity
Seated Load: 67 passengers (Original configuration: 72 - retrofitted for carrying 4 bicycles late 1997)
Design Load: 166 passengers
Crush Load:  257 passengers

Passenger Comfort
Heating: electric strip heaters 750VDC
Air-conditioning: Two self-contained roof units (220VAC - 3 phase)

Vehicle Dimensions
Length over couplers: 88 feet, 6 inches  (26,970mm)
Length over body ends: 86 feet, 8 inches  (26,416mm)
Width: 8 feet, 8 1/2 inches (2,648mm)
Height (rail to roof): 11' 2.5" (3,417mm)
Height (rail to floor): 39 1/2"
Pantograph operating range: 13 feet - 23 feet  (4,000-7,000mm)
Empty weight per car: 99,000 lbs. (44,898kg)
Interior headroom (center aisle): 6 feet, 10 inches  (2,083mm)
Interior width (articulated section): 4 feet   (1,219mm)
Doorway width (minimum): 4 feet  (1,219mm)
Doorway height: 8' 6" (2591mm)
Step height (1st step): 14 inches from top of rail

Vehicle Performance
Maximum design speed: 65 MPH (104km/h)
Maximum operating speed: 55 MPH (88km/h)
Maximum grade: 6.4%
Service acceleration on level tangent track: 3.0 mphps (1.34 m/sē)
Service braking on level tangent track: 3.5 mphps (1.57 m/sē)
Emergency braking on level tangent track: 6.0 mphps (2.68 m/sē)
Minimum horizontal curve radius:  82 feet (25m)
Minimum vertical curve radius: 1660 feet  (506m)

Electrical and Control Systems
Power Supply: 750V DC +200V, -225V
Low voltage power supply: 36V DC
Interior Lights: Fluorescent, 120V 60 Hz ballast
Motor Control: Power modulation in accelerations and braking by varying armature and field resistance
Amperage draw: 1260 Amps/car (full propulsion w/average load)

  Updated June 29, 2000