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...

As railroad bridge is one of the most important infrastructures of railway, the safety of bridge has a direct effect on railway operation efficiency and safety. In this paper, we propose a distributed railway bridge monitoring platform based on the Internet of Things (IOT) to monitoring the state of bridge safety. We made detailed research on the sensor nodes deployment, sensing data updating a...

The Commander, Eighth Coast Guard District, issued a temporary deviation from the regulation governing the operation of the CSX Railroad Swing Span Bridge across Chickasaw Creek, mile 0.0, in Mobile, Alabama. The deviation is necessary to replace railroad ties on the bridge. This deviation allows the bridge to remain closed for eight hours on March 8, 2011. DATES: This deviation is effective fr...

Deterioration of bridges in the United States has been well recognized. According to the FHWA National Bridge Inventory, one third of nearly 600,000 U.S. highway bridges are classified as structurally deficient or functionally obsolete. Since the majority of bridges were built using wood, steel or concrete, the same conventional materials have been used for bridge replacement or rehabilitation,...

Managing terminal lake elevation and salinity are emerging problems worldwide. We contribute to terminal lake management research by quantitatively assessing water and salt flow for Utah's Great Salt Lake. In 1959, Union Pacific Railroad constructed a rock-filled causeway across the Great Salt Lake, separating the lake into a north and south arm. Flow between the two arms was limited to two 4.6...

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To establish an integrated railroad network in the Korean Peninsula, preparation for unification era presented 3rd National Rail Network Construction Plan (2016–2025) and Railroad Industry Development Basic Plan, a preemptive response to construct infrastructure considering low temperature North Korea during winter is essential. In this study, extensive numerical analyses were conducted evaluat...