Knowledge (XXG)

Wye (rail)

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285: 216:) are more likely to be directional than those found on other continents. In Canada and the United States, the railroad often was built before other structures, and railway builders had much more freedom to lay down tracks where they wished. Similarly, when not constrained by space limitations many early Australian railways made use of wyes (particularly in rural locations) for their lower installation and maintenance costs; however, their necessity and use diminished from the 1960s onwards with the major trend in most states toward bidirectional locomotives and railcars. 374:
There is a goods branch from Chullora and, in the future, the possibility of a separate single track freight line. The three passenger stations at the vertices of the triangle have island platforms making it convenient to change trains. The sharp curves of the triangle, and especially the turnouts on those sharp curves, restrict train speeds to between 10 and 50 km/h (6.2 and 31.1 mph). Near Hamilton station on the Central Coast and Newcastle line there is a wye for freight trains and regional trains. This puts them directly on the main northern line
48: 1933: 489: 660: 781:. Trains normally descend in the direction they have arrived from and are designed accordingly with the power unit at the lower end and seating angled to compensate for the gradient. They therefore have to be turned at the summit should it be necessary to make a through journey. Whilst limitations of space dictated that the triangle had to be partly constructed in tunnels it also ensures that in winter it is snow-free and thus readily available in emergencies. 1434: 790: 648: 1717: 1427: 684: 1667: 1541: 1396: 1591: 1047: 363: 1761: 1627: 1551: 1459: 1452: 1294: 1185: 1180: 1692: 1619: 1573: 1153: 1091: 696: 1609: 1601: 1583: 1492: 1477: 1467: 1442: 1388: 1209: 672: 1725: 1702: 1684: 1565: 1558: 1524: 1379: 1353: 1346: 1339: 1287: 1280: 1261: 1253: 1235: 1169: 1161: 1143: 1102: 1031: 1769: 1753: 1744: 1709: 1677: 1659: 1635: 1533: 1484: 1420: 1406: 1245: 1135: 1111: 1024: 1500: 1413: 1227: 1217: 1039: 1360: 166: 906:. Eventually authority was given to construct a turning arrangement on a strip of spare land to the west of the main line, just south of Grantham station. There was insufficient space for a conventional triangle but this was overcome by constructing an "inside-out" triangle whereby the approach tracks intersected in a scissors crossing. 1991: 40: 934:
A typical use for a stub-end passenger station would be as follows: A wye was incorporated at the "throat" where the rows of tracks converged from the station to facilitate the turning of trains. An arriving train came to a stop on the main line after passing the wye. Once the switches on the wye are
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in 1837. The triangle has two passenger platform faces on each of its three sides and five of the six platforms are in frequent (half-hourly, etc.) use by passenger trains. When steam engines were in regular use the triangle (which is of course also traversed by freight trains) was also used to turn
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The land within a triangle is cut off from the adjacent area (and normally fenced off) and has marginal commercial value, so will be purposed mainly for the railway's exclusive use – generally being used for maintenance depots, storage, or vehicle parking. On electrified lines substations tend to be
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Similar considerations as for mainline rail systems apply to the use of triangular junctions and reversing wyes on streetcar and tram systems. Many, although by no means all, streetcar and tram systems use single ended vehicles that have doors on one side only, and that must be turned at each end of
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Meanwhile, the locomotives could be uncoupled from the train and sent to the engine terminal to be serviced for their next assignment. Then, the head-end cars could be uncoupled from the rest of the train and spotted by a station switcher at the parcel facility where mail and express packages were
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in Sydney lies on one corner of a triangular junction, which allows trains to branch off in either direction without the need to terminate or change ends. One train a day from Birrong to Sefton does terminate and reverse at Regents Park station (in order to clean the rust off the crossover rails).
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and it is shown on the 1963 edition of OS 1 inch to 1 mile sheet 113. It was built in the 1950s after the turntable at the locomotive shed failed and expenditure on a replacement was no longer justified. Locomotives requiring to be turned had to travel to Barkston Junction to traverse the
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can turn trains of any length â€” up to the total length of the loop â€” in a single operation, but require far more space than wyes. Rail wyes can be constructed on sites where a loop would not be possible, and can turn trains up to the length of the stub tracks at the end of the wye.
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through successive junctions of the wye. The direction of travel and the relative orientation of a locomotive or railway vehicle thus can be reversed. Where a wye is built specifically for equipment reversing purposes, one or more of the tracks making up the junction will typically be a
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The train was announced for boarding with a list of destinations. With switches aligned, the train slowly departed to the main line, continuing on its journey or returning toward the direction from which it arrived by rounding the opposite leg from the one it reversed on upon arrival.
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handled. The departing train was reassembled, freshly cleaned and serviced for the next journey. A steam pipe from the station's steam generator could have been attached to the train's steam line from the rear to supply heat until the locomotives were coupled up front to supply steam.
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aligned, the train reversed, with the brakeman at the rear of the last car regulating the speed with the brake lever upon approach to the platform. After coming to a complete stop at the end of the track, passengers were allowed to disembark safely.
276:(reversing loop) so that trains can serve the main station in either direction without the need to reverse. In a midline station where it is desired to reverse a consist or locomotive, a double-track and turning wye arrangement is far more common. 256:
A triangle may have a situational disadvantage in train operations when space constraints of the local geography cause one leg of triangle to bypass a main station. In tight city environments, this can happen easily, as it did, for example, at
477:. The former allows direct Limerick–Dublin passenger trains to bypass the Limerick Junction station, and is also occasionally used to turn steam locomotives on railtours, whilst the latter is used primarily by freight trains running between 561:. Though two sides of the former are still in mainline use, the "back line" between Monkstown and Greenisland has been removed, whilst the latter was closed altogether in 1957. Additionally, the Great Northern's largest locomotive yard at 132:
The use of triangular junctions allows flexibility in routing trains from any line to either of the two other paths, without the need to reverse the train. For this reason they are common across most rail networks. A slower train may be
227:, most steam locomotives were uni-directional. Because of land usage considerations, turntables were normally used to turn such locomotives, and most terminal stations and locomotive depots were so equipped. Over time, most diesel and 152:
Where one or more of the lines forming the junction are multi-track, the presence of a triangular junction does introduce a number of potential conflicting moves. For this reason, where traffic is heavy the triangle may incorporate
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attached was turned before starting out south on its record-breaking run on 3 July 1938). The journey to Barkston Junction and back was a time-consuming business involving a round trip of some 8 miles (13 km) along the busy
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However, the vehicles used on such systems tend to have much smaller minimum curvature requirements than heavy rail equipment. This renders the use of a balloon loop more practical in a small amount of space, and with
2115: 534:, the triangle forms the basis of a heritage railway, the only heritage railway of this type in the British Isles. There is one station at each end of the triangle and another in the southernmost corner. 918:
in large cities had wye tracks to allow the turning and backing of directional passenger trains onto a main line. Freight traffic could bypass the terminal through the wye. Notable examples include the
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for turning locomotives. This uses a pentagram layout, requiring four movements and five turnouts to reverse. It allows a smaller layout, without excessively tight curve radii, compared to a triangle.
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termini of its line. The train is turned around at the South Rim/Grand Canyon Village wye with the passengers on board. At the Williams end, the train is turned around after the passengers disembark.
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From time to time it is necessary to turn both individual pieces of railroad equipment or whole trains. This may be because the piece of equipment is not directionally symmetrical, for example, most
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There was a "star" layout at the summit of the Brenner Pass, on the Austrian–Italian border. It was still there in 1991, covered over with gravel so that market-stalls could function on top.
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vehicles such a loop may be able to use side streets or street squares. However, although turning loops are the most common way of turning such vehicles, wye tracks are also sometimes used.
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In Britain triangular layouts that could be used for turning locomotives were usually the result of junctions of two or more lines. There are many examples, including the one known as the
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ordered in Europe have been designed to be fully bi-directional and normally with two driving cabs. Thus most rail wyes, where they existed, and turntables have been taken out of use.
503:. It is rarely used to turn locomotives, save the occasional steam engine. It is only used for out of service trains. Commuter trains enter the junction from one direction (e.g., the 104:
doing the same job, but at the cost of two additional sets of points to construct and then maintain. These turnings are accomplished by performing the railway equivalent of a
2184: 1834: 2736: 2167: 328:, which had been opened in 1831 as a horse-drawn railway. This appears to have been used for reversing trains of wagons with end doors that have just come up the 733:
has two triangles. The first and smaller one is for turning engines and is near the station. The second and larger one is to bypass the dead-end station at
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Railroad systems in North America and Australia have tended to have more wyes than railroads elsewhere. North American locomotives and cars (such as
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located inside triangles, in part because the land is cheap, and also because it provides the most convenient and flexible sectioning arrangements.
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has long been removed and the area re-developed; the sidings at Valley some 4 miles (6.4 km) from the terminus are the nearest suitable site.
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In addition to small terminal stations such as Carbonia and Malles Venosta, inversion stars were also installed at some principal stations such as
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System. It will allow for transfers from feeder services on the third leg and facilitate more routing options as future phases are completed.
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to the highest level of the railway before they proceeded down the remaining inclines. The site of this can still be seen near Hindlow, in
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tracks also make use of triangular junctions and sometimes have a short triangle or wye stubs to turn the car at the end of the line.
554: 466: 2699: 2188: 1913: 558: 313: 258: 194: 2049: 745:. This direct bypass line can save an hour of shunting time, particularly if the train is longer than the loops in the station. 2722: 325: 824:. The significance of it is that steam-hauled trains can run to Newport and their engines be turned using the triangle. Its 1891: 882: 842: 829: 825: 500: 414: 341: 337: 284: 149:
with an oncoming train, or to allow a faster one to overtake, and then reverse out to continue in the original direction.
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network, both at major junctions, and for turning locomotives and train consists in places where the provision of a
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also has a triangular route formation that was used to turn steam locomotives, and is still available. A triangle,
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Where two rail lines join, or where a spur diverges from a railroad's mainline, wyes can be used at a
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It takes four changes of direction of movement to turn a piece of rolling stock on a reversing star.
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require the least space, but can generally only deal with a single piece of equipment at a time.
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Historical triangular junctions in Ireland include Moyasta Junction on the West Clare line, the
265:, Romania, where extra passenger stations had to be built to serve trains taking the shortcut. 2981: 2684: 2429: 2098: 2029: 1909: 1887: 867: 478: 382: 201: 178: 31: 3019: 2986: 2943: 2933: 2906: 2641: 2611: 2606: 2277: 1970: 1952: 1868: 1849: 766: 762: 754: 577: 362: 308:
The earliest British (and possibly worldwide) example is the double-tracked triangle within
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or turntable. It was also used to turn trains, such as during the demonstration run of the
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Wyes can also be used for turning railway equipment, and generally cover less area than a
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tram system has a triangular junction on the Red Line between the stations of
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The Cromford & High Peak Railway: Part 2 â€” Memories of the High Peak
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and is a remarkable engineering feat. Two sides of the wye are built on tall
2820: 2805: 2402: 2368: 2348: 2297: 2287: 1973:. Because of this, a reversing star is more expensive to build and service. 1962: 1961:) is a special wye layout used in places where the space is tight. It has a 530:. Originally constructed to allow direct Belfast–Newcastle trains to bypass 430: 426: 293: 964: 30:"Junction triangle" redirects here. For the neighbourhood in Toronto, see 2439: 2257: 1857: 878: 859: 821: 794: 619: 422: 2714: 2097:. Newton Abbot, Devon; and North Pomfret, Vermont: David & Charles. 1879: 1872: 813: 801: 730: 519:
railcars, so they do not need to use the junction as a turning method.
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never had a turntable, using a dedicated turning triangle instead.
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Illustration of the usage of a wye track for turning a rail vehicle
86:(set of points) at each corner connecting to the incoming lines. A 2168:
Locomotives being turned at Verona (14m 30s) and Brenner (16m 00s)
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There is a turning triangle partly tunnelled into the mountain at
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Several different techniques can be used to achieve such turning.
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for trains travelling directly between the new extension towards
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The "reversing star" (red) compared to the ordinary wye (blue)
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An unusual arrangement, unique in Britain, was constructed at
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The only other operational triangular junction in Ireland is
850:, was provided in 1989 adjacent to the transfer sidings for 385:
was impractical or unnecessarily expensive. These included:
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In contrast, the engineering of a terminus station such as
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trains all day. The wye was named after a past station,
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In Europe, although some use was made of bi-directional
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to allow incoming trains to travel in either direction.
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and one side is in a tunnel bored through solid rock.
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A triangular junction is used to turn tramcars on the
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with some services running north and south along the
499:, Northern Ireland, a triangular junction exists at 2995: 2967: 2897: 2834: 2791: 2753: 2672: 2590: 2485: 2331: 2243: 2050:"UFC 4-860-01FA Railroad Design and Rehabilitation" 485:to avoid having to run around in Kilkenny station. 417:– built to allow trains to travel directly between 377:A number of triangular junctions were built on the 1969:(versus three for a wye) and three, four or five 1716: 1708: 1701: 1466: 1458: 1451: 1835:Chicago and North Western Transportation Company 2084:. Stafford, Robert Cartwright Productions. DVD. 1491: 1483: 1476: 465:two triangular junctions are in use. One is at 288:A park located within a triangular junction in 78:) is a triangular joining arrangement of three 27:Triangular arrangement joining three rail lines 2163: 2161: 2159: 2131: 2129: 366:Double track triangle, drawn in one-rail style 2730: 2220: 1691: 1683: 1676: 979: 8: 1038: 1030: 1023: 866:to be used by steam hauled excursions. The 2737: 2723: 2715: 2227: 2213: 2205: 2146: 2144: 1395: 1387: 1011: 986: 972: 1908:Hammel's Wye is a primary feature of the 1590: 1582: 1184: 1179: 2116:"Via della Stazione, Carbonia CI, Italy" 1666: 1658: 1608: 1600: 1540: 1532: 891:triangular layout there (this was where 603:Some of these still survive, such as at 185:has a dedicated tail end car such as an 46: 2041: 1626: 1618: 969: 640: 321:locomotives, and can still be so used. 1760: 1752: 1160: 1152: 270:Woodville Railway Station, New Zealand 51:Countryside wye near LĂĽderitz, Namibia 1252: 1244: 1216: 1208: 1142: 1134: 396:and used to turn the consists of the 7: 2095:The Cromford & High Peak Railway 1901:is a primary feature of the planned 1234: 1226: 812:South Wales mainline from London to 816:is joined by another GWR line from 777:, located on opposite sides of the 769:is reached from two lower termini, 597: 596:Railways in Italy used a number of 528:Downpatrick and County Down Railway 272:avoided this problem by building a 1090: 25: 1101: 757:at the summit of the 800mm gauge 324:An earlier example may be on the 137:to temporarily enter a wye (as a 1989: 1965:-like form and consists of five 1767: 1759: 1751: 1742: 1723: 1715: 1707: 1700: 1690: 1682: 1675: 1665: 1657: 1633: 1625: 1617: 1607: 1599: 1589: 1581: 1571: 1563: 1556: 1549: 1539: 1531: 1522: 1498: 1490: 1482: 1475: 1465: 1457: 1450: 1440: 1432: 1425: 1418: 1411: 1404: 1394: 1386: 1377: 1358: 1351: 1344: 1337: 1292: 1285: 1278: 1259: 1251: 1243: 1233: 1225: 1215: 1207: 1183: 1178: 1167: 1159: 1151: 1141: 1133: 1109: 1100: 1089: 1046: 1045: 1037: 1029: 1022: 694: 682: 670: 658: 646: 642:Inversion star or convoluted wye 314:Liverpool and Manchester Railway 2136:Via della Stazione, Carbonia CI 1293: 392:– Built on the junction of the 1724: 1523: 1378: 1352: 1345: 1338: 1286: 1279: 1260: 1168: 923:, which has a double wye, the 326:Cromford and High Peak Railway 1: 1863:The southern terminus of the 1768: 1743: 1634: 1110: 316:, which was completed by the 1499: 1884:Grand Canyon Railway (GCRY) 1359: 862:in Wales. This enables the 852:Wylfa Nuclear Power Station 808:, South Wales. Here the ex- 551:Northern Counties Committee 55:In railroad structures and 3062: 2949:Cross-platform interchange 2435:Transfer table (traverser) 1903:California High-Speed Rail 1837:wye and crossover nearby. 310:Earlestown railway station 29: 2879:Switch / turnout / points 2869:Grand circle / roundabout 2423:ground-level power supply 1840:A primary feature of the 1776: 1736: 1732: 1649: 1642: 1516: 1507: 1371: 1367: 1331: 1301: 1272: 1268: 1199: 1176: 1125: 1118: 1081: 1054: 1014: 921:Los Angeles Union Station 235:Streetcar or tram systems 74:(often shortened to just 2185:"Tsumeb railway station" 956:Western Pacific Railroad 206:Balloon or turning loops 2408:Railway electrification 2093:Marshall, John (1982). 1956: 1937: 1886:has a wye at both the 1842:Bay Area Rapid Transit 925:Saint Paul Union Depot 864:North Wales Coast Line 797: 727:Tsumeb railway station 559:Great Northern Railway 492: 371:Sefton railway station 367: 318:Grand Junction Railway 296: 170: 95:mainline rail junction 52: 44: 2547:Platform screen doors 1935: 1918:Rockaway Park Shuttle 1831:Union Pacific Railway 1829:, is named after the 1320:Klamath Falls, Oregon 929:Memphis Union Station 793:Modified triangle at 792: 714:at the summit of the 605:the original terminus 511:. Commuter trains on 501:Grand Central station 491: 479:the Port of Waterford 365: 287: 168: 161:For turning equipment 157:on some of the legs. 50: 42: 3015:Minimum curve radius 2982:Zig Zag / Switchback 2497:Anti-trespass panels 1958:Stella di inversione 1892:Grand Canyon Village 914:Many North American 904:East Coast Main Line 517:diesel multiple unit 330:rope-hauled inclines 229:electric locomotives 90:is a specific case. 3046:Rail junction types 2954:Interchange station 2859:Facing and trailing 2826:Classification yard 2344:Classification yard 2080:Kay, Peter (1997). 2062:on 15 December 2011 1827:Wyeville, Wisconsin 1312:Gateway Subdivision 954:, was built by the 916:passenger terminals 881:. Its location was 532:Downpatrick station 469:, and the other at 463:Republic of Ireland 443:Portland Cable Tram 353:Examples by country 72:triangular junction 18:Triangular junction 2884:Swingnose crossing 2603:Motive power depot 2557:Signalling control 1938: 1848:. 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1058: 1049: 1048: 1041: 1040: 1033: 1032: 1026: 1025: 1012: 988: 981: 974: 965: 889: 849: 836: 767:Kleine Scheidegg 763:Bernese Oberland 755:Kleine Scheidegg 698: 686: 674: 662: 650: 613: 549:triangle on the 524:Downpatrick Loop 429:without using a 348: 261:, Australia and 259:Cootamundra West 225:push–pull trains 221:tank locomotives 214:observation cars 155:flying junctions 106:three-point turn 57:rail terminology 21: 3061: 3060: 3056: 3055: 3054: 3052: 3051: 3050: 3036: 3035: 3034: 3029: 3025:Cant deficiency 3010:Ruling gradient 2991: 2977:Horseshoe curve 2963: 2893: 2854:Double junction 2844:Flying junction 2830: 2787: 2778:Quadruple track 2749: 2743: 2713: 2708: 2668: 2586: 2562:Structure gauge 2517:Defect detector 2489: 2481: 2327: 2283:Clip and scotch 2273:Breather switch 2239: 2233: 2203: 2202: 2183: 2182: 2178: 2166: 2157: 2153:(OpenStreetMap) 2149: 2142: 2138:(OpenStreetMap) 2134: 2127: 2114: 2113: 2109: 2092: 2088: 2079: 2075: 2065: 2063: 2059: 2052: 2048: 2047: 2043: 2038: 2020:Flying junction 2015:Double junction 1995: 1988: 1985: 1930: 1922:Hammels station 1833:, formerly the 1799: 1772: 1765: 1764: 1757: 1756: 1747: 1728: 1721: 1720: 1713: 1712: 1705: 1696: 1695: 1688: 1687: 1680: 1671: 1670: 1663: 1662: 1645: 1638: 1631: 1630: 1623: 1622: 1613: 1612: 1605: 1604: 1595: 1594: 1587: 1586: 1577: 1576: 1569: 1568: 1561: 1554: 1545: 1544: 1537: 1536: 1527: 1512: 1503: 1496: 1495: 1488: 1487: 1480: 1471: 1470: 1463: 1462: 1455: 1446: 1445: 1438: 1437: 1430: 1423: 1416: 1409: 1400: 1399: 1392: 1391: 1382: 1363: 1356: 1349: 1342: 1327: 1297: 1290: 1283: 1264: 1257: 1256: 1249: 1248: 1239: 1238: 1231: 1230: 1221: 1220: 1213: 1212: 1195: 1172: 1165: 1164: 1157: 1156: 1147: 1146: 1139: 1138: 1121: 1114: 1107: 1106: 1105: 1096: 1095: 1094: 1077: 1050: 1043: 1042: 1035: 1034: 1027: 1006: 997: 996: 992: 912: 899:dynamometer car 885: 845: 832: 787: 765:, Switzerland. 751: 724: 702: 699: 690: 687: 678: 675: 666: 663: 654: 651: 607: 594: 459: 360: 355: 344: 306: 282: 254: 237: 187:observation car 181:, or where the 163: 130: 125: 84:railroad switch 35: 28: 23: 22: 15: 12: 11: 5: 3059: 3057: 3049: 3048: 3038: 3037: 3031: 3030: 3028: 3027: 3022: 3017: 3012: 3007: 3001: 2999: 2997:Track geometry 2993: 2992: 2990: 2989: 2984: 2979: 2973: 2971: 2965: 2964: 2962: 2961: 2959:Infill station 2956: 2951: 2946: 2941: 2936: 2931: 2930: 2929: 2924: 2919: 2914: 2903: 2901: 2895: 2894: 2892: 2891: 2889:Level crossing 2886: 2881: 2876: 2871: 2866: 2861: 2856: 2851: 2849:Level junction 2846: 2840: 2838: 2832: 2831: 2829: 2828: 2823: 2818: 2813: 2808: 2803: 2797: 2795: 2789: 2788: 2786: 2785: 2780: 2775: 2770: 2765: 2759: 2757: 2751: 2750: 2744: 2742: 2741: 2734: 2727: 2719: 2710: 2709: 2707: 2706: 2705: 2704: 2703: 2702: 2687: 2682: 2676: 2674: 2670: 2669: 2667: 2666: 2661: 2660: 2659: 2654: 2649: 2644: 2634: 2633: 2632: 2627: 2619: 2614: 2609: 2600: 2594: 2592: 2588: 2587: 2585: 2584: 2579: 2574: 2569: 2564: 2559: 2554: 2552:Railway signal 2549: 2544: 2539: 2537:Level crossing 2534: 2529: 2524: 2519: 2514: 2509: 2504: 2499: 2493: 2491: 2483: 2482: 2480: 2479: 2474: 2469: 2464: 2462:Track geometry 2459: 2454: 2453: 2452: 2442: 2437: 2432: 2427: 2426: 2425: 2420: 2415: 2413:overhead lines 2405: 2400: 2399: 2398: 2388: 2387: 2386: 2376: 2371: 2366: 2364:Gauntlet track 2361: 2356: 2351: 2346: 2341: 2335: 2333: 2329: 2328: 2326: 2325: 2320: 2315: 2310: 2308:Minimum radius 2305: 2300: 2295: 2290: 2285: 2280: 2275: 2270: 2265: 2260: 2254: 2252: 2241: 2240: 2237:infrastructure 2234: 2232: 2231: 2224: 2217: 2209: 2201: 2200: 2176: 2155: 2140: 2125: 2107: 2086: 2073: 2040: 2039: 2037: 2034: 2033: 2032: 2027: 2025:Level junction 2022: 2017: 2012: 2007: 2001: 2000: 1984: 1981: 1949:reversing star 1941:Convoluted wye 1929: 1928:Convoluted wye 1926: 1899:Chowchilla Wye 1890:and South Rim/ 1844:system is the 1821: 1820: 1817: 1816: 1814: 1812: 1810: 1808: 1806: 1804: 1801: 1800: 1795: 1794: 1787: 1786: 1777: 1775: 1773: 1766: 1758: 1750: 1749: 1748: 1741: 1739: 1737: 1734: 1733: 1731: 1729: 1722: 1714: 1706: 1699: 1698: 1697: 1689: 1681: 1674: 1673: 1672: 1664: 1656: 1655: 1654: 1652: 1650: 1647: 1646: 1643: 1641: 1639: 1632: 1624: 1616: 1615: 1614: 1606: 1598: 1597: 1596: 1588: 1580: 1579: 1578: 1570: 1562: 1555: 1548: 1547: 1546: 1538: 1530: 1529: 1528: 1521: 1519: 1517: 1514: 1513: 1508: 1506: 1504: 1497: 1489: 1481: 1474: 1473: 1472: 1464: 1456: 1449: 1448: 1447: 1439: 1431: 1424: 1417: 1410: 1403: 1402: 1401: 1393: 1385: 1384: 1383: 1376: 1374: 1372: 1369: 1368: 1366: 1364: 1357: 1350: 1343: 1336: 1334: 1332: 1329: 1328: 1323: 1322: 1315: 1314: 1302: 1300: 1298: 1291: 1284: 1277: 1275: 1273: 1270: 1269: 1267: 1265: 1258: 1250: 1242: 1241: 1240: 1232: 1224: 1223: 1222: 1214: 1206: 1205: 1204: 1202: 1200: 1197: 1196: 1177: 1175: 1173: 1166: 1158: 1150: 1149: 1148: 1140: 1132: 1131: 1130: 1128: 1126: 1123: 1122: 1119: 1117: 1115: 1108: 1099: 1098: 1097: 1088: 1087: 1086: 1084: 1082: 1079: 1078: 1073: 1072: 1065: 1064: 1055: 1053: 1051: 1044: 1036: 1028: 1021: 1020: 1019: 1017: 1015: 1008: 1007: 1002: 999: 998: 994: 993: 991: 990: 983: 976: 968: 911: 908: 883:grid reference 843:grid reference 830:grid reference 786: 785:United Kingdom 783: 759:Wengernalpbahn 750: 747: 723: 720: 704: 703: 700: 693: 691: 688: 681: 679: 676: 669: 667: 664: 657: 655: 652: 645: 643: 628:Malles Venosta 593: 590: 588:and Connolly. 509:Bangor station 505:Portadown line 458: 455: 439: 438: 412: 407: 398:Sydney Limited 359: 356: 354: 351: 342:grid reference 305: 302: 281: 278: 253: 250: 246:street-running 236: 233: 162: 159: 129: 126: 124: 123:Considerations 121: 26: 24: 14: 13: 10: 9: 6: 4: 3: 2: 3058: 3047: 3044: 3043: 3041: 3026: 3023: 3021: 3018: 3016: 3013: 3011: 3008: 3006: 3003: 3002: 3000: 2998: 2994: 2988: 2985: 2983: 2980: 2978: 2975: 2974: 2972: 2970: 2966: 2960: 2957: 2955: 2952: 2950: 2947: 2945: 2942: 2940: 2937: 2935: 2932: 2928: 2925: 2923: 2920: 2918: 2915: 2913: 2910: 2909: 2908: 2905: 2904: 2902: 2900: 2896: 2890: 2887: 2885: 2882: 2880: 2877: 2875: 2872: 2870: 2867: 2865: 2862: 2860: 2857: 2855: 2852: 2850: 2847: 2845: 2842: 2841: 2839: 2837: 2833: 2827: 2824: 2822: 2819: 2817: 2816:Refuge siding 2814: 2812: 2809: 2807: 2804: 2802: 2799: 2798: 2796: 2794: 2790: 2784: 2781: 2779: 2776: 2774: 2771: 2769: 2766: 2764: 2761: 2760: 2758: 2756: 2755:Railway track 2752: 2748:track layouts 2747: 2740: 2735: 2733: 2728: 2726: 2721: 2720: 2717: 2701: 2698: 2697: 2696: 2693: 2692: 2691: 2688: 2686: 2683: 2681: 2678: 2677: 2675: 2671: 2665: 2662: 2658: 2655: 2653: 2650: 2648: 2645: 2643: 2640: 2639: 2638: 2635: 2631: 2628: 2626: 2623: 2622: 2620: 2618: 2615: 2613: 2610: 2608: 2604: 2601: 2599: 2598:Coaling tower 2596: 2595: 2593: 2589: 2583: 2580: 2578: 2575: 2573: 2570: 2568: 2567:Signal bridge 2565: 2563: 2560: 2558: 2555: 2553: 2550: 2548: 2545: 2543: 2542:Loading gauge 2540: 2538: 2535: 2533: 2530: 2528: 2525: 2523: 2520: 2518: 2515: 2513: 2510: 2508: 2505: 2503: 2500: 2498: 2495: 2494: 2492: 2488: 2484: 2478: 2475: 2473: 2470: 2468: 2465: 2463: 2460: 2458: 2455: 2451: 2450:refuge siding 2448: 2447: 2446: 2443: 2441: 2438: 2436: 2433: 2431: 2428: 2424: 2421: 2419: 2416: 2414: 2411: 2410: 2409: 2406: 2404: 2401: 2397: 2396:tramway track 2394: 2393: 2392: 2389: 2385: 2382: 2381: 2380: 2377: 2375: 2372: 2370: 2367: 2365: 2362: 2360: 2357: 2355: 2352: 2350: 2347: 2345: 2342: 2340: 2337: 2336: 2334: 2330: 2324: 2321: 2319: 2316: 2314: 2311: 2309: 2306: 2304: 2301: 2299: 2296: 2294: 2291: 2289: 2286: 2284: 2281: 2279: 2276: 2274: 2271: 2269: 2266: 2264: 2261: 2259: 2256: 2255: 2253: 2250: 2246: 2242: 2238: 2230: 2225: 2223: 2218: 2216: 2211: 2210: 2207: 2196: 2195: 2190: 2186: 2180: 2177: 2173: 2172:Istituto Luce 2169: 2164: 2162: 2160: 2156: 2152: 2147: 2145: 2141: 2137: 2132: 2130: 2126: 2121: 2117: 2111: 2108: 2104: 2100: 2096: 2090: 2087: 2083: 2077: 2074: 2058: 2051: 2045: 2042: 2035: 2031: 2028: 2026: 2023: 2021: 2018: 2016: 2013: 2011: 2008: 2006: 2003: 2002: 1998: 1997:Trains portal 1992: 1987: 1982: 1980: 1977: 1974: 1972: 1968: 1964: 1960: 1959: 1954: 1950: 1946: 1942: 1934: 1927: 1925: 1923: 1919: 1915: 1911: 1906: 1904: 1900: 1895: 1893: 1889: 1885: 1881: 1876: 1874: 1870: 1866: 1861: 1859: 1855: 1854:San Francisco 1851: 1847: 1843: 1838: 1836: 1832: 1828: 1815: 1813: 1811: 1809: 1807: 1805: 1803: 1802: 1793: 1789: 1788: 1785: 1782: 1781: 1774: 1740: 1738: 1735: 1730: 1653: 1651: 1648: 1644:Tunnel No. 32 1640: 1520: 1518: 1515: 1511: 1510:Spanish Creek 1505: 1375: 1373: 1370: 1365: 1335: 1333: 1330: 1321: 1317: 1316: 1313: 1310: 1307: 1306: 1299: 1276: 1274: 1271: 1266: 1203: 1201: 1198: 1194: 1190: 1174: 1129: 1127: 1124: 1120:Tunnel No. 31 1116: 1085: 1083: 1080: 1071: 1067: 1066: 1063: 1060: 1059: 1052: 1018: 1016: 1013: 1010: 1009: 1005: 1001: 1000: 989: 984: 982: 977: 975: 970: 967: 966: 963: 961: 957: 953: 949: 944: 940: 936: 932: 930: 926: 922: 917: 910:United States 909: 907: 905: 900: 896: 895: 888: 884: 880: 875: 873: 869: 865: 861: 857: 853: 848: 844: 840: 835: 831: 827: 826:National Grid 823: 819: 815: 811: 807: 803: 796: 791: 784: 782: 780: 776: 772: 771:Lauterbrunnen 768: 764: 760: 756: 748: 746: 744: 740: 736: 732: 728: 721: 719: 717: 713: 709: 697: 692: 685: 680: 673: 668: 661: 656: 649: 644: 641: 639: 637: 633: 629: 625: 621: 617: 611: 606: 601: 599: 591: 589: 587: 583: 582:George's Dock 579: 575: 571: 566: 564: 560: 556: 552: 548: 544: 540: 535: 533: 529: 525: 520: 518: 514: 510: 506: 502: 498: 490: 486: 484: 480: 476: 472: 468: 464: 456: 454: 452: 448: 444: 436: 432: 428: 424: 420: 416: 415:North Geelong 413: 411: 408: 405: 404: 399: 395: 391: 388: 387: 386: 384: 380: 375: 372: 364: 357: 352: 350: 347: 343: 339: 338:National Grid 335: 331: 327: 322: 319: 315: 311: 303: 301: 295: 291: 286: 279: 277: 275: 271: 266: 264: 260: 252:Disadvantages 251: 249: 247: 241: 234: 232: 230: 226: 222: 217: 215: 210: 207: 203: 198: 196: 192: 188: 184: 180: 176: 167: 160: 158: 156: 150: 148: 144: 141:in lieu of a 140: 139:refuge siding 136: 127: 122: 120: 118: 114: 112: 107: 103: 98: 96: 91: 89: 85: 81: 77: 73: 69: 66: 62: 58: 49: 41: 37: 33: 19: 2969:Hillclimbing 2939:Balloon loop 2873: 2811:Pocket track 2801:Balloon loop 2793:Rail sidings 2773:Double track 2768:Passing loop 2763:Single track 2582:Wayside horn 2532:Interlocking 2512:Catch points 2476: 2472:Water trough 2374:Passing loop 2354:Pocket track 2339:Balloon loop 2303:Ladder track 2194:DigitalGlobe 2192: 2189:the original 2179: 2151:Mals station 2119: 2110: 2094: 2089: 2081: 2076: 2064:. Retrieved 2057:the original 2044: 2005:Balloon loop 1978: 1975: 1948: 1945:turning star 1944: 1940: 1939: 1907: 1896: 1877: 1862: 1839: 1825:The town of 1824: 945: 941: 937: 933: 913: 892: 876: 828:location is 804:triangle in 799: 752: 725: 716:Brenner Pass 705: 602: 595: 567: 547:Bleach Green 536: 521: 494: 460: 440: 401: 397: 394:Cudgewa Line 376: 369: 323: 307: 298: 274:balloon loop 267: 255: 242: 238: 218: 211: 199: 172: 151: 143:passing loop 131: 128:At junctions 115: 102:balloon loop 99: 92: 87: 75: 71: 64: 60: 54: 43:A simple wye 36: 3005:Track gauge 2864:Grand union 2507:Buffer stop 2467:Water crane 2379:Track gauge 2318:Tie/Sleeper 2120:Google Maps 2066:23 December 2010:Control car 1846:Oakland Wye 775:Grindelwald 749:Switzerland 636:South Tyrol 632:Val Venosta 608: [ 543:Greenisland 513:NI Railways 483:County Mayo 240:the route. 195:Circle Line 111:stub siding 88:turning wye 2680:Industrial 2664:Water stop 2625:for trains 2617:Roundhouse 2591:Structures 2577:Train stop 2527:Guard rail 2502:Block post 2490:and safety 2487:Signalling 2418:third rail 2391:Rail track 2384:dual gauge 2268:Baulk road 2036:References 1912:, serving 1193:SR 89 1189:SR 70 995:Keddie Wye 948:Keddie Wye 927:, and the 854:, near to 839:Shrewsbury 818:Shrewsbury 431:run-around 334:Derbyshire 280:Land usage 202:Turntables 80:rail lines 2836:Junctions 2821:Rail yard 2806:Headshunt 2783:Crossover 2630:for goods 2572:Tell-tale 2403:Rail yard 2369:Guide bar 2349:Headshunt 2332:Trackwork 2298:Fishplate 2288:Date nail 2249:(history) 1963:pentagram 868:turntable 586:The Point 539:Monkstown 471:Lavistown 427:Melbourne 383:turntable 358:Australia 340:location 294:Australia 177:and some 63:(like the 3040:Category 2899:Stations 2685:Military 2642:building 2612:Platform 2522:Derailer 2440:Roll way 2359:Junction 2258:Axe ties 2105:. p. 36. 1983:See also 1967:turnouts 1888:Williams 1858:East Bay 1191: / 1070:Oroville 960:trestles 887:SK914349 879:Grantham 872:Holyhead 860:Anglesey 847:SH294789 834:ST316887 822:Hereford 795:Grantham 743:Windhoek 665:Carbonia 653:Carbonia 620:Sardinia 616:Carbonia 578:Connolly 563:Adelaide 515:are all 475:Kilkenny 451:Victoria 447:Portland 445:line in 437:in 1937. 423:Ballarat 346:ST316887 145:) for a 135:signaled 76:triangle 2746:Railway 2695:station 2690:Private 2637:Station 2313:Profile 2263:Ballast 1953:Italian 1880:Arizona 1873:Florida 1869:Sanford 1792:Portola 897:with a 894:Mallard 814:Swansea 806:Newport 802:Maindee 761:in the 731:Namibia 722:Namibia 712:Brenner 634:in the 622:and at 574:Busáras 557:on the 526:on the 497:Belfast 473:, near 461:In the 457:Ireland 419:Geelong 406:trains. 390:Wodonga 312:on the 183:consist 82:with a 2987:Spiral 2917:Island 2457:Switch 2445:Siding 2245:Tracks 2101:  1882:, the 1004:Legend 856:Valley 739:Angola 735:Tsumeb 410:Ararat 290:Sydney 263:Tecuci 2927:Split 2673:Types 2652:ghost 2647:clock 2621:Shed 2235:Rail 2060:(PDF) 2053:(PDF) 1798: 1778: 1326: 1303: 1076: 1056: 612:] 592:Italy 70:) or 68:glyph 3020:Cant 2922:Side 2700:list 2657:list 2278:Cant 2099:ISBN 2068:2011 1916:and 1897:The 1309:BNSF 946:The 820:via 773:and 741:and 710:and 701:Mals 689:Mals 677:Mals 624:Mals 580:and 570:Luas 568:The 553:and 481:and 400:and 349:.). 223:and 197:). 147:meet 65:'Y' 59:, a 2912:Bay 2874:Wye 2477:Wye 1947:or 1878:In 1867:in 1790:to 1318:to 1068:to 950:in 870:at 858:on 810:GWR 779:col 729:in 630:in 626:or 618:in 614:of 495:In 425:or 336:. ( 193:'s 61:wye 3042:: 2158:^ 2143:^ 2128:^ 2118:. 1955:: 1943:, 1871:, 931:. 837:. 718:. 638:. 610:it 576:, 453:. 449:, 421:, 292:, 113:. 2738:e 2731:t 2724:v 2605:/ 2228:e 2221:t 2214:v 2198:. 2174:) 2170:( 2122:. 2070:. 1951:( 1924:. 1914:A 987:e 980:t 973:v 545:/ 541:/ 34:. 20:)

Index

Triangular junction
Junction Triangle


rail terminology
glyph
rail lines
railroad switch
mainline rail junction
balloon loop
three-point turn
stub siding
Tram or streetcar
signaled
refuge siding
passing loop
meet
flying junctions

steam locomotives
diesel locomotives
consist
observation car
London Underground
Circle Line
Turntables
Balloon or turning loops
observation cars
tank locomotives
push–pull trains

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