City Class 29.2400.3 LRV

Presentation by

Design Principles

• Proven design concept
• The City Class LRV from TRAM Power Ltd.
• Has world wide application.
• Innovative design and “components off the shelf”.
• Components off the shelf (COTS) reduces costs
• Low initial, low maintenance and low whole life costs.
• The City Class LRV is a highly efficient public transport vehicle.
• Can compete with buses on operating costs.
• Matches light rail for speed and comfort.

Mechanical

• TRAM Power design bogie
• low track forces (bogie weight = 2200 kg)
• All wheels separately rotate -
• eliminating curve squeal
• Wheels individually removable
• for maximum life (>300,000 km)
• Ultra comfort resilient wheel, need not be same diameter
• Smoother ride for passengers
• Central Articulation carried on two wheels
• best use of space

Electrical

• Body mounted traction motors - easy maintenance
• No equipment inside passenger saloon - full width flat floor
• The light weight (22 tonnes) reduces power
• saves more in electricity than the initial purchase price.
• saves on infrastructure requirements.
• Three phase AC drive, with regeneration to stand still
• Programmable acceleration / braking and jerk rates
• 10 % gradient capable
• PLC “fly by wire” control system

Body & Structure

• Integral high strength body
• fabricated from rustless steel (long life > 30 years)
• Timoshenko crash worthy cab,
• with driver survival zone
• High passenger capacity (e.g. 200 in 29 metre vehicle)
• Compatible with all passenger facilities, e.g. air conditioning
• Easy mid life modification,
• adding longer articulation unit to increase capacity to 300 passengers
• Low floor (300 mm) and high floor (760 mm) options
• Length in 1500 mm modules, from 16000 mm to 38000 mm
• Width from 2400 mm to 3500 mm
• Height from 2900 mm (including double deck option)
• Flat articulation floor, with clear passage 1000 mm wide

Development

• Computer simulations
• laboratory models
• bench testing
• mock up
• slave vehicle
• prototype LRV
• production vehicle

Testing

• Mock up
      - built 1993 for trade exhibition
  
• Slave vehicle
      -1930 tram with
      -TRAM Power equipment at one end
      -operated 1995 - 1997
  
• Prototype
      -tested at Blackpool 1998 and 2000
      -with HMRI agreement.

Mock Up

• 4 tonne
• Low/High floor - 25 % length full size
• Exhibited and market research in Birmingham, Blackpool, Chatham, Dublin,
  Edinburgh, Gloucester, Liverpool, London & Sheffield

Slave Tram

• Redundant 1930’s tram for scrapping
• One original bogie and drive removed
• TRAM Power bogie, 90kW 3phase industrial motor and Inverter drive fitted
• Tested on Blackpool Tramway 1995 - 1997

Prototype LRV

• 29m long
• single articulation
• bogie, motor and inverter from Slave tram with second identical set added
• tested with HMRI agreement 1998 - 2000

Production Vehicle

• Prototype completely refurbished 2005
• new motors
      - smaller
      - more powerful
  
• new inverters
      - smaller
      - more powerful
  

The City Class Family

• 15 m horizontal track radius
• 100 m vertical curve capable
• Magnetic track brakes for emergency braking