2 kinds of slab tracks were installed on the High Tonnage Loop in the Facility for Accelerated Service Testing. Direct fixation slab track (DFST) and independent dual block track (IDBT) were installed into a five-degree curve with four-inch superelevation. The complete slab track test section was 500 feet (ft) long, which consisted of 250 ft of IDBT and 250 ft of DFST. That program was conductedto show the durability of the slab track for 39-ton axle loadswhile sustaining the track geometry conditions of a Class9 track. More specifically, the program was carried out to characterize slab track stiffness conditions, to quantify slab track dynamic responses andlong-time period performance under heavy axel loadtrain operation, and to supply the test information for validating slab track research and designmethodologies for shared heavy-freight and high-speed train service.
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click here: Slab Track Field Test and Demonstration Program for Shared Freight and High-Speed Passenger Service
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