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Horseshoe Curve (road)
A horseshoe curve is a class of climbing curve in a roadbed which reverses turn direction (inflection) twice on either side of a single tight curve that varies through an angle of about 180 degrees or more. Such curves are more commonly found in a railway line but are also used in roads. The characteristic U shape, or even slight balloon shape, of such a curve resembles a horseshoe. On roadways, particularly tight versions of such curves are typically called hairpin turns. Theory A horseshoe curve is a means to lengthen an ascending or descending grade 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 climbing spiral around one or more peaks, or a climbing traverse (cutting) wrapping around an end of a ridge. If the straight route between two points is too steep to climb, a more circuitous route will increase the di ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Canyon
A canyon (from ; archaic British English spelling: ''cañon''), or gorge, is a deep cleft between escarpments or cliffs resulting from weathering and the erosion, erosive activity of a river over geologic time scales. Rivers have a natural tendency to cut through underlying surfaces, eventually wearing away rock layers as sediments are removed downstream. A river bed will gradually reach a baseline elevation, which is the same elevation as the body of water into which the river drains. The processes of weathering and erosion will form canyons when the river's River source, headwaters and estuary are at significantly different elevations, particularly through regions where softer rock layers are intermingled with harder layers more resistant to weathering. A canyon may also refer to a rift between two mountain peaks, such as those in ranges including the Rocky Mountains, the Alps, the Himalayas or the Andes. Usually, a river or stream carves out such splits between mountains. Examp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Velbert
Velbert ( Low Rhenish: ''Vèlbed'') is a town in the district of Mettmann, in the German state of North Rhine-Westphalia. The town is renowned worldwide for the production of locks and fittings. Geography Velbert is located on the hills of 'Niederberg' (meaning ''Lower Mountain''), part of the Berg region, approx. 20 kilometres north-east of the capital of North Rhine Westphalia, Düsseldorf, and 12 kilometers north-west of Wuppertal on the south side of the Ruhr river. Velbert stands on the highest part of the Niederberg region and also in its centre. Its average elevation is around 230 metres above sea level; its highest point, at 303 metres, is the ''Hordt-Berg'', and its lowest, at around 70.6 metres, is in Nierenhof am Deilbach. The highest point in Velbert itself is 263 metres above sea level, at the corner of Friedrichstraße and Langenberger Straße. Incorporation As part of the reform of local government districts in North Rhine-Westphalia that came into effect on 1 J ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kylling Bridge
The Kylling Bridge ( no, Kylling bru) is a railway bridge in Rauma Municipality in Møre og Romsdal county, Norway. The bridge crosses the Rauma River near the village of Verma in the upper part of the Romsdalen valley. The bridge is part of a double horseshoe curve that allows the railway to pass a narrow and steep section of the valley. It is one of the most photographed railway bridges in Norway. The Kylling Bridge is long. The main span is , and side spans are and . The clearance to the river below is . The construction of the Kylling Bridge started in September 1913. After almost 9 years, the bridge was finally finished in the winter of 1921. The Rauma Line The Rauma Line ( no, Raumabanen) is a long railway between the town of Åndalsnes (in Rauma Municipality in Møre og Romsdal county), and the village of Dombås (in Dovre Municipality in Oppland county), in Norway. Running down the Romsdalen v ... railway opened on 29 November 1924. The Kylling Bridge cost . Refe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rauma Line
The Rauma Line ( no, Raumabanen) is a long railway between the town of Åndalsnes (in Rauma Municipality in Møre og Romsdal county), and the village of Dombås (in Dovre Municipality in Oppland county), in Norway. Running down the Romsdalen valley, the line opened between 1921 and 1924 as a branch of the Dovre Line, which connects to the cities of Oslo and Trondheim. Originally intended as the first stage to connect Ålesund, and possibly also Molde and Kristiansund, no extensions have ever been realized. The unelectrified line is served four times daily with Norwegian State Railways' Class 93, although in the summer the service only operates from Åndalsnes to Bjorli as a tourist service. CargoLink operates a daily freight train. The line features two horseshoe curves and has a elevation drop. Among the line's features is the Kylling Bridge and views of the mountainous valley. Five stations remain in use: Dombås, Lesja, Lesjaverk, Bjorli and Åndalsnes. There have been la ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flåm Line
The Flåm Line ( no, Flåmsbana) is a long railway line between Myrdal and Flåm in Aurland Municipality, in Vestland county, Norway. A branch line of the Bergen Line, it runs through the valley of Flåmsdalen and connects the mainline with Sognefjord. The line's elevation difference is ; it has ten stations, twenty tunnels and one bridge. The maximum gradient is 5.5 percent (1:18). Because of its steep gradient and picturesque nature, the Flåm Line is now almost exclusively a tourist service and has become the third-most visited tourist attraction in Norway. Construction of the line started in 1924, with the line opening in 1940. It allowed the district of Sogn access to Bergen and Oslo via the Bergen Line. Electric traction was taken into use in 1944; at first El 9 locomotives were used, and from 1982 El 11. Until 1991, the train connected with a ferry service from Flåm to Gudvangen. In 1992, freight services were terminated, and due to low ticket prices and high operatin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Standard Gauge
A standard-gauge railway is a railway with a track gauge of . The standard gauge is also called Stephenson gauge (after George Stephenson), International gauge, UIC gauge, uniform gauge, normal gauge and European gauge in Europe, and SGR in East Africa. It is the most widely used track gauge around the world, with approximately 55% of the lines in the world using it. All high-speed rail lines use standard gauge except those in Russia, Finland, and Uzbekistan. The distance between the inside edges of the rails is defined to be 1435 mm except in the United States and on some heritage British lines, where it is defined in U.S. customary/Imperial units as exactly "four feet eight and one half inches" which is equivalent to 1435.1mm. History As railways developed and expanded, one of the key issues was the track gauge (the distance, or width, between the inner sides of the rails) to be used. Different railways used different gauges, and where rails of different gauge met – ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dovrefjell
Dovrefjell is a mountain range in Central Norway that forms a natural barrier between Eastern Norway and Trøndelag. The mountain range is located in Innlandet, Møre og Romsdal, and Trøndelag counties in Norway. As a result of its central location, its valleys and passes have been heavily trafficked during and probably preceding historical times. Several mountain inns were established in the Middle Ages to house pilgrims traveling through Dovrefjell to Trondheim, and there are even ruins of an old leper colony in the northern area of it. The main south-north highway ( European route E6) and the Dovrebanen railway line both run through a mountain pass in the Dovrefjell range. The highway is a year-round highway but on rare occasions it is closed for short periods during heavy winter weather conditions. The mountain range runs through the municipalities of Oppdal in Trøndelag county, Folldal, Dovre, and Lesja in Innlandet county, and Sunndal in Møre og Romsdal county. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dombås
is a village or small town in Dovre Municipality in northern Innlandet county, Norway. The village serves as the commercial centre for the upper Gudbrandsdalen valley. It lies at an important junction of roads with the European route E6 highway heading north and south connecting the cities of Oslo and Trondheim and the European route E136 highway heading west to Åndalsnes. The Dovrebanen and Raumabanen railway lines meet in the village at Dombås Station as well. Dombås Church is located in the village. The village has a population (2021) of 1164 and a population density of . History 19th Century A description of the village area from 1895: Twentieth century The Dovre Line was extended to Dombås in 1913 and Dombås Station built. The line was extended onwards to Støren in 1921. Three years later, the Rauma Line opened connecting Dombås to Åndalsnes. Dombås Church was completed in 1939. World War II In 1940, during the Norwegian Campaign, the Germans recognized this r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dovre Line
The Dovre Line ( no, Dovrebanen) is a Norwegian railway line with three slightly different lines which all lead to the historic city of Trondheim. Definition *Dovre Line is the current name of the 548 km main line of the Norwegian railway system (Jernbaneverket) between Oslo and Trondheim, used by Jernbaneverket (some times) and Vy (former NSB). *Dovre Line is also the 484 km main line between Eidsvoll and Trondheim, used by Jernbaneverket since 2008. *Dovre Line was the name of the 209 km main line between Dombås and Trondheim until 2008. The most inclusive of these meanings of Dovre Line thus includes the other two. To complicate the pattern even more, the first use of the Dovre Line was on the section between Dombås and Støren, completed in 1921. When this last section of the new standard gauge main line between Oslo and Trondheim via Lillehammer and Dombås was opened in 1921, the originally 49 km long narrow gauge section between Støren and Trondheim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
