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In model railroading, a ''layout'' is a diorama containing scale track for operating trains. The size of a layout varies, from small shelf-top designs to ones that fill entire rooms, basements, or whole buildings. Attention to modeling details such as structures and scenery is common. Simple layouts are generally situated on a table, although other methods are used, including doors. More permanent construction methods involve attaching benchwork framing to the walls of the room or building in which the layout is situated. ==Track layout== An important aspect of any model railway is the layout of the track itself. Apart from the stations, there are four basic ways of arranging the track, and innumerable variations: * ''Continuous loop''. A circle or oval, with trains going round and round. Used in train sets. * ''Point to point''. A line with a station at each end, with trains going from one station to the other. * ''Out and back''. A pear shaped track, with trains leaving a station, going round a reversing loop, and coming back to the same station. * ''Shunting (US: Switching)''. Either a station, a motive power depot or a yard where the primary mode of operation is shunting. This includes layouts which are built as a train shunting puzzle such as Timesaver and Inglenook Sidings Common variations: * On a point to point layout, the train can increase the time it takes to get from A to B by going around a continuous loop a few times. * Single or double track or more, so more trains can run at the same time. * Intermediate stations, to distinguish between express trains which go straight through and local trains which stop briefly. * Branch lines, to add an excuse for more stations and different types of trains. * Use of multiple levels. * Arranging the continuous loop as a figure-of-8, possibly with one track going over the other instead of having tracks crossing on the same level. * Folding one loop of a figure-of-8 over the other loop to produce a looped-8, so as to reduce the amount of space needed while keeping a long continuous run. * Using one or more fiddle yards (US: staging tracks) to represent the rest of the railway system. A fiddle yard is regarded as off-scene; it may hold multiple complete trains, and may also be subject to direct human intervention (fiddling) to re-arrange trains, * Dog-bone arrangement of a continuous loop; the sides of an oval are squeezed together so it looks like a double-track section with a loop at each end where the trains turn around. * Rabbit warren; a continuous loop folded over itself several times with multiple levels and lots of tunnels for trains to pop in and out of - often a small layout with sharp curves and short trains. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Model railroad layout」の詳細全文を読む スポンサード リンク
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