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The Permanent Way Corp. supplies the Low Vibration Track system consisting of individual concrete tie blocks, microcellular support pads and encasing rubber boots. The tie blocks, fastened to the rails, are embedded in a second pour of concrete using a “top down” construction method, resulting in a fast and accurate installation, the company says. The trackform has been selected for the Channel Tunnel and major U.S. projects. The system is a permanent, maintenance-free, non-ballasted track that offers vibration control. The integrated design is offered with various types of rail pads and fastenings, and is available for transit, commuter rail and high-speed and freight applications.