نتایج جستجو برای: railroad track

تعداد نتایج: 65899  

2009
M E Soklic

Using modeling and simulation users can apply realistic interactions with their synthetic environments representing real world. In this study the synthetic environment is a hardware railroad model representing a miniature replica of a full-size railroad system under study. The hardware model is tested by means of real-time adaptive software simulator consisting of two subsystems: the virtual ra...

2000
T Lindner U T Zimmermann

Attractive train schedules are quite important for the success of public rail transport. We consider schedules which are repeated after some xed time period. Periodicity is a well accepted, convenient attribute of all major railroad systems. Since trains share the public railroad network, we have to handle many connicting demands. Increasing competition from transportation alternatives as well ...

Journal: :IEEE Sensors Journal 2021

Tracks are critical and expensive railroad asset, requiring frequent maintenance. The stress from heavy car axle loads increases the risk of deviations uniform track geometry. Irregularities in geometry, such as warping, can cause an excessive harmonic rocking condition that lead to derailments, traffic delays, associated financial losses. This article presents approach enhance location identif...

Journal: :Journal of the American Institute of Electrical Engineers 1921

Journal: :Social security bulletin 2008
Kevin Whitman

In the 1930s, amidst concern about the ability of existing pension programs to provide former railroad workers with adequate assistance in old age, Congress established a national Railroad Retirement system. This system is primarily administered by the Railroad Retirement Board (RRB), which is an independent federal agency charged with providing benefits to eligible employees of the railroad in...

Journal: :Social security bulletin 1983
B E Kritzer

consider an individual’s Railroad Retirement benefit, other than the tier I benefit, in dividing property in a divorce case. This would treat Railroad Retirement benefits like other pension benefits. The only benefits paid to divorced spouses under the Railroad Retirement system are tier I benefits. Tier I benefits would continue to be immune from garnishment, attachment, assignment, levy, or o...

Journal: :CoRR 2017
Dattaraj J. Rao Shruti Mittal S. Ritika

Deep Learning methods have been extensively used to analyze video data to extract valuable information by classifying image frames and detecting objects. We describe a unique approach for using video feed from a moving Locomotive to continuously monitor the Railway Track and detect significant assets like Switches on the Track. The technique used here is called Siamese Networks – which uses 2 i...

2017
Mahmoud Reda Taha Timothy Jack Ross Timothy J. Ross Mahmoud R. Taha Jose Alberto Gómez

The railroad network carries 40 % of the freight in the US. Railroad bridges are the most critical part of the network and they need to be properly maintained for safety of operations. Railroad managers inspect the bridges to assess their structural condition. Railroad managers are interested in measuring displacements under train crossing events to prioritize their bridge management and safety...

2005
Michele Ottomanelli Mauro Dell'Orco Domenico Sassanelli

Optimization of Life Cycle Cost (LCC) in railroad maintenance, is one of the main goals of the railways managers. In order to achieve the best balance between safety and operating costs, “on condition” maintenance is more and more used; that is, a maintenance intervention is planned only when and where necessary. Nowadays, the conditions of railways are monitored by means of special diagnostic ...

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