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Also Centering spring cylinder. A cylindrical cast-iron holder in which an adjusting string is placed. Adjusting spring seat A casting, or a part of the bolster of a two-wheel trailing truck, forming a bearing for the end of the adjusting spring. Admission The opening of steam port to admit steam to one end of a cylinder. If the valve has no lead, admission takes place at the moment the piston ...
D2 Subway is a proposed 2.4 mi (3.9 km) expansion of the DART light rail system in metropolitan Dallas, Texas, in the United States.The subway would run from the existing Victory station, tunneling underground through the city centre of downtown Dallas, and connect to the existing tunnel under Cityplace.
Light rail (or light rail transit, abbreviated to LRT) is a form of passenger urban rail transit using rolling stock derived from tram technology [1] while also having some features from heavy rapid transit. The term was coined in 1972 in the United States, to create an English equivalent for the German word Stadtbahn meaning City railway.
Pearl/Arts District station. The DART light rail system, operated by Dallas Area Rapid Transit, serves portions of the Dallas–Fort Worth metroplex, Texas, United States. The network consists of sixty-five stations on four lines: Blue Line, Green Line, Orange Line and Red Line. All but one of the stations along the DART network are open-air ...
An underground power line provides electrical power with underground cables. Compared to overhead power lines, underground lines have lower risk of starting a wildfire and reduce the risk of the electrical supply being interrupted by outages during high winds, thunderstorms or heavy snow or ice storms. An added benefit of undergrounding is the ...
Minimum railway curve radius. 90-foot (27.43 m) radii on the elevated 4 ft 81⁄2 in (1,435 mm) standard gauge Chicago 'L'. There is no room for longer radii above this street intersection at this cross junction at the Wells and Lake street intersection in the northwest corner of the loop. The minimum railway curve radius is the shortest ...
v. t. e. An electrical conduit is a tube used to protect and route electrical wiring in a building or structure. Electrical conduit may be made of metal, plastic, fiber, or fired clay. Most conduit is rigid, but flexible conduit is used for some purposes.
A station box is a term in the construction industry: It describes a box-like underground structure for a transportation system, for example a metro or tube station. [1] Station boxes are built in two methods – "top-down" or "bottom-up". In the "bottom-up" method, a chamber as large as the station structure is dug into the ground into which ...
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