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Tank Car Operating Environment Study: Phase I

This report documents the results of controlled testing conducted during the first phase of a tank car operating environment program involving the Association of American Railroads, the Railway Supply Institute (formerly the Railway Progress Institute), the Federal Railroad Administration, and...

Bridge Approaches and Track Stiffness

Over time, it is not uncommon for a dip in the track to develop off the end of a bridge—on the bridge approach. This dip, or bump at the end of the bridge, is often a rough-riding spot and one that requires resurfacing at more frequent intervals than does the rest of the track. A commonly held...