BENEFITS OF DIPPED VERTICAL ALIGNMENTS FOR RAIL TRANSIT ROUTES

Dipped track profiles between rail transit stations can substantially reduce propulsive energy, braking energy, and travel times. This paper quantifies the potential benefits for situations reflected in various values for dips, speed and acceleration limits, station spacings, and available power. The authors developed a deterministic simulation model to precisely estimate train motions and performance using basic equations for kinematics, resistance, power, and braking. For a 1 percent dip in which gradients never exceed 4 percent, the authors' results show savings exceeding 9 percent for propulsive energy, 15 percent for braking energy, and 5 percent for travel time between stations.

Language

  • English

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Filing Info

  • Accession Number: 00730045
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jan 2 1997 12:00AM