Recommended Practice

Developing a Clearance Diagram for Passenger Equipment


This recommended practice provides a guide for passenger railroads to determine their particular equipment clearance requirements and develop a clearance diagram sufficiently specific to allow equipment designers to develop designs that will conform to those requirements. It has two specific limitations:

  1. It is not intended to lead to the development of a universal passenger equipment diagram, because such a diagram would be too restrictive in one way or another to most passenger railroads.
  2. It is based on conventional types of trucks and does not consider tilt suspension systems. If an unconventional truck design or a tilt suspension is employed, these procedures may have to be modified to suit the particular vehicles.
Document History
Document Number Version Publication Date Publication Related Information
APTA PR-CS-RP-003-98 Original 03/26/1998 Published Current


clearances, diagrams



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