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A railroad tie, crosstie (American English), railway tie (Canadian English) or railway sleeper (Australian and British English) is a rectangular support for the rails in railroad tracks. Generally laid perpendicular to the rails, ties transfer loads to the track ballast and subgrade , hold the rails upright and keep them spaced to the correct ...
On a standard-gauge railway, the nominal mounting height for the coupler (rail top to coupler center) is 33 inches (838 mm), with a 34 + 1 ⁄ 2 ± 1 inch (876 ± 25 mm) maximum height on empty cars and 31 + 1 ⁄ 2 ± 1 inch (800 ± 25 mm) minimum height on loaded cars.
A railway track (CwthE and UIC terminology) or railroad track (NAmE), also known as permanent way (CwthE) [1] or "P Way" (BrE [2] and Indian English), is the structure on a railway or railroad consisting of the rails, fasteners, sleepers (railroad ties in American English) and ballast (or slab track), plus the underlying subgrade.
[3] A production facility for railroad ties has been located at the southern end of the classification yard since 1908, where the wooden ties for a large part of the CB&Q rail network were processed, impregnated, and stored. The annual processing volume here was 1.5 million ties, and the plant is now managed by Koppers. [4] [5] Roundhouse in 1927
Railroad development kept pace with the expanding frontier in the United States after the American Civil War, creating a burgeoning need for new railroad ties. Every mile of track required about 2,500-3,500 crossties. Trains became heavier and faster and the railroads found it was less expensive to add more ties per mile than to buy heavier ...
In 1886, the southern railroads agreed to coordinate changing gauge on all their tracks. After considerable debate and planning, most of the southern rail network was converted from 5 ft (1,524 mm) gauge to 4 ft 9 in (1,448 mm) gauge, then the standard of the Pennsylvania Railroad, over two days
The FRA notices said that the need for the new rules was shown by the derailment of an Amtrak train near Home Valley, Washington on 3 April 2005, which, according to the U.S. National Transportation Safety Board, was caused in part by excessive (more than 0.5 inches (13 millimetres)) abrasion of the concrete.
In 1886, the southern railroads agreed to coordinate changing gauge on all their tracks. After considerable debate and planning, most of the southern rail network was converted from 5 ft (1,524 mm) gauge to 4 ft 9 in (1,448 mm) gauge, then the standard of the Pennsylvania Railroad, over two days beginning on May 31, 1886. Over a period of 36 ...