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Horseshoe curve

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in both directions and tightly curved segment; while a spiral generally has a more uniform curvature. Obviously, a horseshoe also gives rise to a severe change in direction requiring another corrective curve to regain displacement in the overall direction of travel, while a spiral generally does not.
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If the straight route between two points is too steep to climb, a more circuitous route will increase the distance traveled, allowing the difference in altitude to be averaged over a longer track (or road) length. Unlike a spiral, a horseshoe curve does not involve the track crossing over itself, and
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Horseshoe curves are common on railway lines in steeply graded or hilly country, where means must be found to achieve acceptable grades and minimize construction costs. As with spirals, the main limitation in laying out a horseshoe is keeping its radius as large as possible, as sharp curves limit
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and thereby reduce the maximum gradient. Grade or gradient is defined as the rise divided by the run (length) or distance, so in principle such curves add to length for the same altitude gain, just as would a
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A horseshoe curve is sometimes used where the route bridges a deep gully. Deviating from a straight-line route along the edge of the gully may allow it to be crossed at a better location.
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between Upper Tyndrum and Bridge of Orchy was built because the engineers of the railway couldn't afford to build a viaduct crossing the remote valley.
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up to 106 feet high. In 1951, a new route removed the original horseshoe, the spiral and all the trestles but added a new horseshoe at milepost 48.
1624: 1376: 378:, Norway, has a double horseshoe, one inside a tunnel, one in the open, few kilometres below top station, standard gauge, single track. 1382: 1379:. The railway line climbs at a steady ruling gradient from Kyogle to the summit at a tunnel at the border between the two states. 96: 1593: 722: 385:, Norway, has a double horseshoe through the steep and narrow valley at Verma, one inside a tunnel and one that includes the 1280: 1158: 68: 1372: 1315:, a pair of tightly linked horseshoes forms a "figure of 8" in which one loop almost completely contains the small city of 1045: 1617: 718: 256:
train speed, and through increased friction, are harder on rails, requiring more frequent replacement of outer tracks.
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branch, a goods-only railway from the main line to the river quayside, through a steeply descending horseshoe tunnel.
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Avslutningsrapport for Dovrebanen: avgit til Den kgl. norske regjerings departement for de offentlige arbeider.
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nearly side-by-side but several meters different in elevation. Both loops rotate about 250 degrees each.
1836: 1337: 559: 408:, Poland has a double horseshoe curve leading the tracks from a flat plateau down to the valley of the 211:. The characteristic U shape, or even slight balloon shape, of such a curve resembles a horseshoe. On 1236: 329: 154: 976: 890: 868: 846: 635: 610: 466: 1938: 1665: 1152: 834: 621: 501: 42: 1856: 1039: 1008: 820: 653: 625: 606: 296: 1273:
Mountains has extensive horseshoe curves, including four double horseshoes, and with a double
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in Poland there is a five-times, elongated horseshoe curve (50°51â€Č19"N, 15°34â€Č17"E).
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Richburg, New York; Pittsburg, Shawmut, & Northern Railroad (abandoned)
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Swain, New York; Pittsburg, Shawmut, & Northern Railroad (abandoned)
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the full horseshoe involves both relatively straight sections, curve
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in New Zealand has a horseshoe curve as the first part of the climb.
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A horseshoe curve is a means to lengthen an ascending or descending
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in Australia that connects New South Wales with Queensland through
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Altura Curve; Altura, Colorado; Rio Grande, Pagosa and Northern;
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Mance Curve, between Meyersdale and Hyndman, Pennsylvania, along
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Arnold Loop; on the eastern approach to Silver Zone Pass in the
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in China, a double horseshoe and a buttrtfly curve, south of
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there is a significant number of horseshoe curves on the
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gorge, a complex system of horseshoe curves, tunnels and
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Oslo: Baneforlaget. 1926 (original), 2000 (reprint).
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Hairpin Curve and Muleshoe Curve; McAndrews, Colorado
705:Horseshoe curves were used extensively on the many 56:. Unsourced material may be challenged and removed. 1925: 1544: 1412:, New Zealand North Island Main Trunk line near 340:The FlĂ„m Line, 1926 shortly after construction 1618: 640:"N+122°16'53.7"W/@41.2603058,-122.2860363 Map 240:(cutting) wrapping around an end of a ridge. 1385:, turns back on itself at about 225 degrees. 1586:Pittsburg, Shawmut, & Northern Railroad 1567: 889:in eastern Nevada; Union Pacific (formerly 500:Coles Curve; Coles, Pennsylvania. Built by 1625: 1611: 934:Gilluly Loops, a double horseshoe west of 552:(Chicago-Washington, D.C.) passenger train 1632: 1561: 1455:The Alaska Railroad in Pictures 1914-1964 425:"N+15°33'23.6"E/@50.848201,15.5543693 Map 203:Such curves are more commonly found in a 116:Learn how and when to remove this message 1457:, Ken Wray's Print Shop, Anchorage, 1964 845:, Maryland, at Cash Valley Road; former 335: 307: 236:around one or more peaks, or a climbing 1588:. Arcadia Publishing. pp. 20, 37. 1383:Picton railway station, New South Wales 587:, both on an extensive range of timber 1926: 1504: 1469:Redwoods, Iron Horses, and the Pacific 797:66° curve; Moro Castle, Colorado; 613:, and then Southern Pacific Railroad). 548:) used by freight trains and Amtrak's 448:railway track and on the railway from 1606: 1583: 1466: 1406:takes a large detour to descend 100m. 713:, now mostly abandoned, for example: 644:Chorro, California on the grade from 1493:Tracking Ghost Railroads in Colorado 1193:Hemaling–Beikaizhu Curve(abandoned). 1151:in China, a double horseshoe inside 742:Los Pinos Curve; Los Pinos, Colorado 518:, the four-track route built by the 54:adding citations to reliable sources 25: 1507:Uintah Railway: The Gilsonite Route 1155:, located east of Yiliang Town, at 745:Phantom Curve; Sublette, New Mexico 739:Tanglefoot Curve; Cumbres, Colorado 13: 1498: 748:Whiplash Curve; Big Horn, Colorado 719:Cumbres and Toltec Scenic Railroad 670:Big Ten Curve; at the foot of the 522:(PRR) that starts its climb along 283:has a horseshoe curve in Neviges, 192:is a class of climbing curve in a 14: 1950: 1551:John Brian Hollingsworth (1982). 1311:Also on the Trans-Iranian in the 849:Connellsville Extension, now the 800:Balloon Loop; Columbine, Colorado 460: 851:Western Maryland Scenic Railroad 695:San Luis and Rio Grande Railroad 489: 484: 162: 138: 30: 21:Horseshoe Curve (disambiguation) 678:on the eastern approach to the 389:, standard gauge, single track. 41:needs additional citations for 1523: 1485: 1460: 1447: 1427: 1389: 1223:Wushao Hill Curve (abandoned). 863:Vendome Loop; 9 miles west of 583:, there was a horseshoe and a 196:that reverses turn direction ( 16:Roadbed that turns 180 degrees 1: 1574:. Continental Railway Circle. 1554:Atlas of the world's railways 1420: 1344:, has a horseshoe curve from 756:Ophir Loop; Ophir, Colorado; 736:Coxo Curve; Cumbres, Colorado 689:Fir Loop; near the summit of 1505:Bender, Henry E Jr. (1970). 1361: 758:Rio Grande Southern Railroad 682:; Union Pacific (originally 571:In the Loop District of the 173:that helps trains cross the 7: 867:on the eastern approach to 815:Horseshoe Tunnel, south of 618:California Western Railroad 472:The horseshoe curve on the 430: 259: 10: 1955: 1837:Cross-platform interchange 1531:"é“ćœ± – ćźäŒŸćŁźäžœçš„ć±•çșżçŸ€â€”â€”æˆæ˜†é“è·ŻèżèœŹèź°ć…¶ć››" 1356: 1338:East Japan Railway Company 938:; Union Pacific (formerly 709:railroads in the Colorado 630:The Cantara Loops between 363:at the steep hills to the 269: 207:line but are also used in 145:A road switchbacks into a 127: 18: 1883: 1855: 1785: 1767:Switch / turnout / points 1757:Grand circle / roundabout 1722: 1679: 1641: 1296:35.8762337°N 52.9554674°E 1174:24.932133°N 103.2088713°E 1102:Handulu-lianghekou Curve. 964: 751:Lava Loop; Lava, Colorado 660:(Los Angeles to Seattle). 558:, a former PRR line near 393: 344:Credit: Anders Beer Wilse 330:Norwegian National Road 7 303: 264: 222: 155:Canyonlands National Park 1327: 1219:Lanzhou–Xinjiang Railway 1121:Neijiang–Kunming Railway 1061:34.266537°N 107.009844°E 992: 847:Western Maryland Railway 636:Mount Shasta, California 611:Central Pacific Railroad 1467:Crump, Spencer (1998). 1259: 1199:Chengdu–Kunming Railway 1189:Guizhou–Kunming Railway 1149:Nanning–Kunming Railway 1131:Guiyang–Guangxi Railway 1088:Chengdu–Kunming Railway 1034:Guanyin hill Curve, on 1015:, which belongs to the 987: 652:, a route owned by the 579:48 and 51 northeast of 502:East Broad Top Railroad 1350:RikuchĆ«-ƌhashi Station 1301:35.8762337; 52.9554674 1235:Guanjiao Curve Group, 1179:24.932133; 103.2088713 821:Camas Prairie Railroad 654:Union Pacific Railroad 626:Fort Bragg, California 607:Union Pacific Railroad 347: 333: 297:Prince William railway 1934:Railway track layouts 1267:Trans-Iranian Railway 1237:Qinghai–Tibet Railway 1066:34.266537; 107.009844 1036:Baoji-Chengdu Railway 1030:Baoji-Chengdu Railway 1003:In the urban area of 833:Helmstetter's Curve; 794:) gauge (abandoned): 656:and used by Amtrak's 532:gaps of the Allegheny 520:Pennsylvania Railroad 339: 311: 287:on the route between 179:Altoona, Pennsylvania 1903:Minimum curve radius 1870:Zig Zag / Switchback 1571:Middle East railways 1568:Hugh Hughes (1981). 1402:The U-bend south of 1371:is a feature of the 1317:Sepiddasht, Lorestan 1017:Nanjing-Wuhu Railway 979:'s Shuswap Sub near 952:Foss Creek, between 936:Soldier Summit, Utah 837:, Maryland, between 632:Dunsmuir, California 546:Keystone Subdivision 50:improve this article 19:For other uses, see 1842:Interchange station 1747:Facing and trailing 1714:Classification yard 1584:Clark, Ken (2016). 1404:Maddingly, Victoria 1373:North Coast Railway 1292: /  1253:Luobei South Curve. 1244:Erlang North Curve. 1170: /  1057: /  983:, British Columbia. 779:) gauge (abandoned) 768:) gauge (abandoned) 616:Five curves on the 603:Truckee, California 175:Allegheny Mountains 169:Aerial shot of the 1772:Swingnose crossing 1105:Liudu River Curve. 542:CSX Transportation 474:West Highland Line 467:Newcastle Quayside 454:Turčianske Teplice 446:Turčianske Teplice 348: 334: 1921: 1920: 1595:978-1-4671-1726-5 1346:Kamiarisu Station 875:(abandoned 1980). 346: 314:Storegjeltunnelen 277:Rhein-Ruhr S-Bahn 126: 125: 118: 100: 65:"Horseshoe curve" 1946: 1832:Spanish solution 1822:Terminal station 1795:Railway platform 1627: 1620: 1613: 1604: 1603: 1599: 1576: 1575: 1565: 1559: 1558: 1548: 1542: 1541: 1539: 1538: 1527: 1521: 1520: 1502: 1496: 1489: 1483: 1482: 1464: 1458: 1451: 1445: 1431: 1313:Zagros Mountains 1307: 1306: 1304: 1303: 1302: 1297: 1293: 1290: 1289: 1288: 1285: 1185: 1184: 1182: 1181: 1180: 1175: 1171: 1168: 1167: 1166: 1163: 1094:aishiyan Station 1072: 1071: 1069: 1068: 1067: 1062: 1058: 1055: 1054: 1053: 1050: 970:British Columbia 793: 789: 778: 774: 767: 763: 732: 728: 601:Stanford Curve; 538:Sand Patch Grade 511: 507: 421:Szklarska Poręba 357:GrĂžnbogen tunnel 342: 166: 142: 121: 114: 110: 107: 101: 99: 58: 34: 26: 1954: 1953: 1949: 1948: 1947: 1945: 1944: 1943: 1924: 1923: 1922: 1917: 1913:Cant deficiency 1898:Ruling gradient 1879: 1865:Horseshoe curve 1851: 1781: 1742:Double junction 1732:Flying junction 1718: 1675: 1666:Quadruple track 1637: 1631: 1596: 1580: 1579: 1566: 1562: 1549: 1545: 1536: 1534: 1529: 1528: 1524: 1517: 1503: 1499: 1490: 1486: 1479: 1465: 1461: 1452: 1448: 1432: 1428: 1423: 1392: 1364: 1359: 1330: 1300: 1298: 1294: 1291: 1286: 1283: 1281: 1279: 1278: 1262: 1178: 1176: 1172: 1169: 1164: 1161: 1159: 1157: 1156: 1147:Banmaoqing, on 1075:Majia Dam Curve 1065: 1063: 1059: 1056: 1051: 1048: 1046: 1044: 1043: 1040:Weibin District 995: 990: 975:Notch Hill, on 967: 891:Western Pacific 817:Culdesac, Idaho 791: 787: 776: 772: 765: 761: 730: 726: 711:Rocky Mountains 658:Coast Starlight 646:San Luis Obispo 573:Alaska Railroad 550:Capitol Limited 516:Horseshoe Curve 509: 505: 492: 487: 463: 442:BanskĂĄ Bystrica 433: 396: 371:, single track. 341: 318:Dalbergtunnelen 306: 295:, known as the 272: 267: 262: 234:climbing spiral 225: 190:horseshoe curve 186: 185: 184: 183: 182: 171:Horseshoe Curve 167: 159: 158: 143: 132: 122: 111: 105: 102: 59: 57: 47: 35: 24: 17: 12: 11: 5: 1952: 1942: 1941: 1939:Road transport 1936: 1919: 1918: 1916: 1915: 1910: 1905: 1900: 1895: 1889: 1887: 1885:Track geometry 1881: 1880: 1878: 1877: 1872: 1867: 1861: 1859: 1853: 1852: 1850: 1849: 1847:Infill station 1844: 1839: 1834: 1829: 1824: 1819: 1818: 1817: 1812: 1807: 1802: 1791: 1789: 1783: 1782: 1780: 1779: 1777:Level crossing 1774: 1769: 1764: 1759: 1754: 1749: 1744: 1739: 1737:Level junction 1734: 1728: 1726: 1720: 1719: 1717: 1716: 1711: 1706: 1701: 1696: 1691: 1685: 1683: 1677: 1676: 1674: 1673: 1668: 1663: 1658: 1653: 1647: 1645: 1639: 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Retrieved 1525: 1506: 1500: 1492: 1491:Ormes, R.M. 1487: 1468: 1462: 1454: 1449: 1433: 1429: 1377:Richmond Gap 1269:through the 1229: 1228: 1212: 1211: 1141: 1140: 1114: 1113: 1081: 1080: 1023: 1022: 997: 996: 969: 968: 946: 945: 928: 927: 922:Cascade Line 910: 909: 897: 896: 879: 878: 857: 856: 827: 826: 809: 808: 707:narrow gauge 704: 697:(originally 691:La Veta Pass 664: 663: 609:(originally 595: 594: 565: 564: 560:Duncansville 526:due west of 495:Pennsylvania 494: 493: 417:Jelenia GĂłra 343: 254: 251: 242: 226: 202: 189: 187: 130:Hairpin turn 112: 103: 93: 86: 79: 72: 60: 48:Please help 43:verification 40: 1893:Track gauge 1752:Grand union 1410:Turangarere 1390:New Zealand 1299: / 1206:Fala Curve. 1177: / 1165:103°12â€Č32″E 1135:Layi Curve. 1099:Lewu Curve. 1064: / 1052:107°00â€Č35″E 1013:Xuanwu Lake 1009:Zhonghuamen 887:Toano Range 792:914 mm 777:914 mm 766:914 mm 731:914 mm 672:Front Range 650:Cuesta Pass 622:coast range 510:914 mm 246:deflections 106:August 2024 1928:Categories 1537:2024-08-08 1421:References 1287:52°57â€Č20″E 1284:35°52â€Č34″N 1162:24°55â€Č56″N 1049:34°16â€Č00″N 981:Salmon Arm 947:Washington 839:Cumberland 721:(formerly 596:California 383:Rauma Line 353:Dovre Line 198:inflection 128:See also: 76:newspapers 1724:Junctions 1709:Rail yard 1694:Headshunt 1671:Crossover 1362:Australia 954:Skykomish 940:D&RGW 865:Whitehall 843:Frostburg 788:3 ft 773:3 ft 762:3 ft 733:) gauge: 727:3 ft 723:D&RGW 577:mileposts 506:3 ft 376:FlĂ„m Line 367:plateau, 322:MĂ„bĂždalen 293:Wuppertal 1787:Stations 1557:. Bison. 1414:HÄ«hÄ«tahi 1348:down to 1115:Xinjiang 956:and the 918:Oakridge 916:East of 898:New York 828:Maryland 760: â€“ 699:D&RG 684:D&SL 674:west of 665:Colorado 624:east of 589:trestles 575:between 478:Scotland 438:Slovakia 431:Slovakia 415:Between 260:Examples 238:traverse 213:roadways 177:west of 1634:Railway 1357:Oceania 1321:portals 1230:Qinghai 1082:Sichuan 1024:Shaanxi 1005:Nanjing 998:Jiangsu 920:on the 858:Montana 819:on the 782:On the 717:On the 528:Altoona 512:) gauge 312:Map of 285:Velbert 281:Germany 270:Germany 205:railway 194:roadbed 90:scholar 1875:Spiral 1805:Island 1592:  1513:  1475:  1440:  1275:spiral 1271:Alborz 1142:Yunnan 965:Canada 911:Oregon 880:Nevada 676:Arvada 634:, and 585:spiral 566:Alaska 450:Zvolen 412:river. 410:Prosna 406:Kalisz 400:GrybĂłw 394:Poland 361:DombĂ„s 304:Norway 265:Europe 223:Theory 147:canyon 92:  85:  78:  71:  63:  1815:Split 1342:Japan 1328:Japan 1213:Gansu 1042:, at 993:China 810:Idaho 365:Dovre 359:from 326:loops 289:Essen 229:grade 209:roads 97:JSTOR 83:books 1908:Cant 1810:Side 1590:ISBN 1511:ISBN 1473:ISBN 1438:ISBN 1395:The 1367:The 1265:The 1260:Iran 1011:and 988:Asia 929:Utah 841:and 419:and 381:The 374:The 351:The 316:and 291:and 275:The 151:Utah 69:news 1800:Bay 1762:Wye 1340:in 1336:of 1277:at 725:); 648:to 544:'s 504:to 476:in 452:to 444:to 436:In 328:on 320:in 279:in 153:'s 149:in 52:by 1930:: 977:CP 942:). 893:). 871:; 786:; 701:). 693:; 686:). 638:. 605:; 219:. 188:A 1626:e 1619:t 1612:v 1598:. 1540:. 1519:. 1481:. 1444:. 1416:. 1308:. 1096:. 1019:. 960:. 924:. 853:. 823:. 790:( 775:( 764:( 729:( 508:( 332:. 299:. 181:. 157:. 119:) 113:( 108:) 104:( 94:· 87:· 80:· 73:· 46:. 23:.

Index

Horseshoe Curve (disambiguation)

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Hairpin turn

canyon
Utah
Canyonlands National Park

Horseshoe Curve
Allegheny Mountains
Altoona, Pennsylvania
roadbed
inflection
railway
roads
roadways
hairpin turns
grade
climbing spiral
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