Suspension Resonance Track

The Suspension Resonance Track runs from the siding to the High Speed Loop through a series of built-in perturbations.

The perturbations excite car body motion in three modes: pitch and bounce, twist and roll, yaw and sway.

Route
Siding to High Speed Loop
Length
3.4 miles
Speed
75 mph through perturbed test zones
  • Suspension Resonance Track, photograph 1 of 3, exterior
  • Suspension Resonance Track, photograph 2 of 3, exterior
  • Suspension Resonance Track, photograph 3 of 3, exterior

1 of 3

The SRT features three specific testing zones to evaluate railcar performance over known track defects:

  • Pitch and Bounce: 10 sections with a 0- to 0.75-inch vertical profile and 39-foot wavelengths.
  • Twist and Roll: Utilizes cross-level deviations of up to 0.75 inches on each rail for testing speeds between 10 and 70 mph.
  • Adjustable Test Zone: Includes custom perturbations allowing up to 2 inches laterally and 5 inches vertically for yaw and sway testing.
Back to On-track Testing