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Keywords: Positive Train Location, PTL, end-of-train device, ETD, End of Train, EOT, Head of Train, HOT, Positive Train Control, PTC, Global Navigation Satellite System, GNSS, Global Positioning System, GPS
Abstract: The overall goal of the Positive Train Location (PTL) end-of-train (EOT) project was to build on the successes of the PTL Phase II project and further refine the use cases,...
Keywords: Dense urban area, DUA, Differential Quadrature Phase Shift Keying, DQPSK, radio frequency, RF, interoperable train control, ITC, Positive Train Control, PTC, Hata Equation, quadrature amplitude modulation, QAM, wireless communications, application message
Abstract: The Federal Railroad Administration (FRA) sponsored a project conducted by Transportation Technology Center, Inc. (TTCI) to analyze railroad wireless communication needs and...
Keywords: Ballast behavior, discrete element modeling, DEM, Discrete Element Method, triaxial test, fouling, dynamic train loading, ballast degradation and image analysis
Abstract: An innovative integrated computational-experimental laboratory testing framework has been developed at the University of Illinois at Urbana-Champaign to evaluate clean and fouled...
Keywords: Next generation track circuits, NGTC, Communications-Based Train Control, CBTC, Positive Train Control, PTC, moving blocks, movement authorities
Abstract: The Federal Railroad Administration (FRA) sponsored a project from June 8, 2015, through June 7, 2017, in which Transportation Technology Center, Inc. (TTCI) investigated concepts...