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Light Rail Car Low Floor Extensions

Light Rail Car Low Floor Extensions. ASME/IEEE Railway Lunch March 11, 2003. Karl W. Berger, P.E. DCM, Inc. Level Boarding. High Level platforms Wayside lifts Car carried lifts Low Level platforms with High Blocks Low Floor Cars. Cities with High Blocks. Denver Sacramento Baltimore

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Light Rail Car Low Floor Extensions

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  1. Light Rail CarLow Floor Extensions ASME/IEEE Railway Lunch March 11, 2003 Karl W. Berger, P.E. DCM, Inc.

  2. Level Boarding • High Level platforms • Wayside lifts • Car carried lifts • Low Level platforms with High Blocks • Low Floor Cars DCM, Inc. Transportation Consultants

  3. Cities with High Blocks • Denver • Sacramento • Baltimore • Salt Lake City DCM, Inc. Transportation Consultants

  4. High Floor Cars & High Blocks • Floors 40 inches above top of rail. • Three steps in stair wells. • “High block” located at departure end of platform. • Operator must leave operating position and deploy bridge at front door. • Three minutes to accommodate wheelchair passenger. DCM, Inc. Transportation Consultants

  5. Why add a Low Floor Extension? • Eliminate high blocks. • Reduce operator action. • Reduce dwell times. • Extend life of existing fleet. • Increase passenger capacity. • Obtain low floor benefits at lower cost. DCM, Inc. Transportation Consultants

  6. How to Build an LFE DCM, Inc. Transportation Consultants

  7. Is it feasible? • Propulsion/braking system capacity. • Car clearance envelope. • Crashworthiness of front end and new body. • Rerailing procedure. • Shop limitations. • HVAC/Auxiliary electric/Door controls. • Energy consumption. DCM, Inc. Transportation Consultants

  8. Possible Configurations • Single axle steerable bogies 100% low floor extension • Two axle small wheel bogies 90-100% low floor extension • Two axle standard bogies 50-70% low floor extension DCM, Inc. Transportation Consultants

  9. Cottbus Verkehr • 36 Tatra streetcars (26 converted to low floor) • 65 buses all low floor • 30.4 km track in four lines • 170 km Southeast of Berlin DCM, Inc. Transportation Consultants

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