Technical Reports

Train-to-Train Rear End Impact Tests Volume I: Pre-Impact Determination of Vehicle Properties

  • 01
  • Mar
  • 1977
AUTHOR: Federal Railroad Administration
OFFICE: RPD
SUBOFFICE: RPD-30
REPORT NUMBER: DOT/FRA/ORD-76/303.I
SUBJECT: Collision
KEYWORDS: Train-to-Train Impact Tests; Impacts; Baseline Impact Tests; Impact Tests; Rear End Train Collisions
ABSTRACT: Nine train-to-train rear end impact tests were performed by the Dynamic Science Division of Ultrasystems, Inc., at DOT's Transportation Test Center under contract with the Transportation Systems Center which is conducting the program for the Federal Railroad Administration. This final report documents these nine tests. Volume I, Pre- Impact Determination of Vehicle Properties, summarizes the vehicle properties obtained prior to the impact tests. These vehicle properties were used in computer simulation of the impact tests and included weights, pitch moments of inertia, spring rated, vertical center of gravity location, and linear dimensions. Volume II, Impact Test Summaries, describes the impact tests. The impact tests were remotely controlled with impact speeds ranging from 3 to 30 mph. An array of approximately 20 highspeed cameras and 50 channels of data, including accelerations, strains, and displacement, documented the impacts. Volume III, Impact Test Summaries Appendix, is an appendix to Volume II. It contains the original data of the impact test.

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