TTC at a Glance

  • High Tonnage Loop
  • Rail Transit Track Loop
  • Transit Test Track
  • Wheel Rail Mechanism Loop
  • Tight Turn Loop
  • Precision Geometry Slab Track
  • Vertical Wall for Impact Testing
  • Underground Test Tunnel
  • Passenger-Rail Services Building
  • Transit Maintenance Building
  • Urban Rail Building
  • Wheel Trueing Machine
  • Drop Table
  • Cranes, Jacks, Floor Pits,
  • Overhead Wire and Third Rail with Adjustable Voltage
  • Office space, shop space, and tracks available for long term use to support  onsite testing
  • Provided services to support long term rail vehicle storage including rolling stock maintenance support and car movement services
  • Support staff to aid in rolling stock maintenance and testing
  • New locomotive, freight car, and passenger car testing (homologation)
  • Accelerated service testing of rolling stock and track components
  • Impact testing of railway vehicles including tank cars and passenger cars

High Tonnage Loop Accelerated Testing

The High Tonnage Loop (HTL) is a 4.3 km (2.7 mile) loop used to evaluate vehicle and track components under accelerated use. The HTL is a one-of-a-kind facility to generate high tonnage rapidly and in non-revenue environment, perfect for evaluating rolling stock, track components, and associated systems.

The High Tonnage Loop (HTL) at the TTC provides accelerated testing of rolling stock and track components.

Impact Testing

ENSCO is capable of full-scale, head-on collision testing at the TTC. Additionally, a specially engineered impact wall is used for a variety of crash tests including side impact tests.

Lab Rig Testing Laboratory

The TTC is outfitted with one-of-a-kind lab rig equipment to evaluate rail vehicles to their full extent.

Major Component Testing Laboratory

Partnered with laboratories, such as CTL Group, and with capabilities at the TTC, ENSCO can provide track and rolling stock component testing capabilities in accordance with AAR and AREMA standards and guidelines. Testing services include:

Component Testing at a Glance


  • Large lab space and material handling ability to handle large components such as bolsters, side frames, passenger truck frames, and crossties (sleepers)
  • State-of-the-art servo-hydraulic testing equipment


  • Static and fatigue testing of bolsters and side frames
  • Friction wedge testing
  • Polymer, composite, steel, wood, and concrete crosstie (sleeper) testing
  • Rail, weld, and joint bend testing

Component Failure Analysis and Materials Laboratory Testing

With partner with ESI Inc., ENSCO provides rail component failure analysis and laboratory testing. The ESI staff is a leader in railway industry component failure analysis, serving prominent railways including Union Pacific Railroad and CSX.

ESI Laboratory at a Glance

  • Large lab space, material handling and sample preparation capabilities to handle large components such as wheelsets and bogies Hydraulic presses for tensile and compression testing
  • Metallurgy evaluation equipment
  • Visual and Scanning Electron Microscopy (SEM)

 Component performance deficiency identification

  Railway component failure analysis

  Sleeper laboratory testing

  Industry standard component evaluation

  Chemical composition testing