In recent years, remote non-contact NDE techniques have been sought in an effort to improve railroad related inspection operations. More specifically, efforts have been aimed at increasing the inspection coverage and performing dynamic inspections for railroad tracks and wheels. Throughout most of the 20th century, dynamic inspections of railroad tracks have been developed and performed, howeve...

This article discusses the design and implementation of laboratory equipment suitable for teaching and research in the area of embedded and real-time systems, and examines some possible studies and avenues concerning this subject matter. The laboratory is designed and assembled around several commercially available components. Its main software components are the integrated software development...

Based on cellular automaton and multi-agent model, we propose a novel hybrid model for distributed simulation of train-group in the railway traffic. An improved cellular automaton model is designed for simulating the underlying structure of the railroad and a multi-agent model is used for dynamic scheduling of the train-group. The combination of both models answers for the distributed simulatio...

Railroad transportation of hazardous materials did not receive as much attention as highway transportation in the academic literature, although comparable volumes are shipped via these two transport modes in North America and Europe. In this paper we present an optimization methodology for the railroad tactical planning problem with risk and cost objectives. We determine the routes to be utiliz...

The Brazilian freights railroad transportation, in the last five years, is achieving a significant growth. Currently, the railroad transport operators use performance evaluation measures, related to financial and operational aspects, being that in some cases, there isn’t a relation of cause and effect between them. According to the Brazilian research, 85% of the railroad transport companies use...

We study the sawtooth lattice of a coupled spin 1/2 Heisenberg system, a variant of the railroad trestle lattice. The ground state of this system is twofold degenerate with periodic boundary conditions and supports kink antikink excitations, which are distinct in this case, unlike the railroad trestle lattice. The resulting low temperature thermodynamics is compared with the recently discovered...

The benefit provisions and legislative history of the 1951 amendments to the Railroad Retirement Act were summarized in the February Bulletin. In this issue the Chief Actuary of the Social Security Administration discusses the financial and actuarial implications of the amended law, with special emphasis on the provisions coordinating in some measure the railroad program with old-age and surviv...

Railroad equipment manufacturers are surveying a railroad clearance and the environment along rail line to ensure that vehicles can travel safely. Currently, there is need for system accurately measure distance from center of track structures within railroad. Therefore, we have developed 2D-LiDAR create 2D drawings geometry in In this study, propose method detect errors data occur during measur...

Railroad-related accidents are more dangerous than other transportation accidents in terms of severity and death rate etc. Therefore more efforts are necessary for improving safety. In the mean time, Korean national railroad has researched and invested continuously such as intelligent safety equipments and level crossing between railroad and highway for decreasing railroad-related accident and ...

ITE JOURNAL / NOVEMBER 1999 HIGHWAY-RAILROAD GRADE crossings are a relatively unique and sometimes perilous intersection of two transportation modes. The cost of collisions at these intersections is high in both dollars and human lives. The amount and type of sight distance provided at highway-railroad grade crossings can have significant impacts on safety. The proper calculation of these sight...