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The loading gauge is the maximum size of rolling stock. It is distinct from the minimum structure gauge, which sets limits to the size of bridges and tunnels on the line, allowing for engineering tolerances and the motion of rail vehicles. The difference between the two is called the clearance.
Using 32 mm (1.26 in) - 0 gauge - track, there is an extensive range of 16 mm to the foot scale [1:19] live-steam and other types of locomotives, rolling stock and accessories. Many of these models are dual gauge, and can be converted to run on 45 mm (1.772 in) track , and radio control is common.
The HS2 rolling stock are trains for the under-construction High Speed 2 (HS2) high-speed rail line in the United Kingdom. The contract was awarded to a 50/50 joint venture between Hitachi Rail and Alstom , for 54 trains, which will be constructed in the United Kingdom. [ 8 ]
Rolling stock was altered to fit the new gauge at shops and rendezvous points throughout the South. The final conversion to true standard gauge took place gradually as part of routine track maintenance. [6] Now, the only broad-gauge rail tracks in the United States are on some city transit systems.
In civil engineering, clearance refers to the difference between the loading gauge and the structure gauge in the case of railroad cars or trams, or the difference between the size of any vehicle and the width/height of doors, the width/height of an overpass or the diameter of a tunnel as well as the air draft under a bridge, the width of a lock or diameter of a tunnel in the case of watercraft.
Rolling stock is also allocated an RA (again between 1 and 10) and the RA of a train is the highest RA of any of its elements. The train must have a route availability (RA) lower than or equal to the RA of a line to be allowed to use it. The RA is primarily related to the axle load of the vehicle, although axle spacing is also taken into ...
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The Rolling stock of the Lynton and Barnstaple Railway was one of the most distinctive aspects of the 1 ft 11 + 1 ⁄ 2 in (597 mm) narrow gauge line which ran for almost twenty miles across Exmoor in North Devon, England, from 1898 to 1935.