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Slab track with flexible noise-reducing rail fixings, built by German company Max Bögl, on the Nürnberg–Ingolstadt high-speed line. A ballastless track or slab track is a type of railway track infrastructure in which the traditional elastic combination of sleepers and ballast is replaced by a rigid construction of concrete or asphalt.
A disadvantage of traditional track structures is the heavy demand for maintenance, particularly surfacing (tamping) and lining to restore the desired track geometry and smoothness of vehicle running. Weakness of the subgrade and drainage deficiencies also lead to heavy maintenance costs. This can be overcome by using ballastless track.
A German high-speed line, with ballastless track Continuous welded rail is generally used to reduce track vibrations and misalignment. Almost all high-speed lines are electrically driven via overhead lines , have in-cab signalling , and use advanced switches using very low entry and frog angles.
Wooden ties are used on many traditional railways. In the background is a track with concrete ties. 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.
A judge has ruled that a Georgia railroad can buy land against the will of property owners to build a track, rebuffing a challenge that a libertarian group hoped could make it harder to use ...
You can also track your health and weight loss progress by measuring your blood pressure, as a higher weight is more likely to cause high blood pressure. High blood pressure increases the risk of ...
Louisiana weather forecast. A Winter Storm Warning went into affect at 6 a.m. local time Thursday for most of northwestern Louisiana, according to the weather service, and will last through noon ...
Track ballast is the material which forms the trackbed upon which railroad ties (UK: sleepers) are laid. It is packed between, below, and around the ties. [ 1 ] It is used to bear the compression load of the railroad ties, rails, and rolling stock ; to facilitate drainage ; and keep down vegetation that can compromise the integrity of the ...