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Encyclopedia > Hairpin turn
Road D2204 ascends to the Col de Braus using hairpin bends in the Alpes Maritimes in the French Alps ( 43°41′58″N, 7°22′50″E)
The kind of hair pin (bobby pin) from which a hairpin turn gets its name
The kind of hair pin (bobby pin) from which a hairpin turn gets its name
Some of the 48 hairpin turns near the top of the northern ramp of the Stilfserjoch (Passo dello Stelvio)
Some of the 48 hairpin turns near the top of the northern ramp of the Stilfserjoch (Passo dello Stelvio)
Hairpin turn on the Mont Ventoux in France
Hairpin turn on the Mont Ventoux in France
One of the most famous NASCAR tracks with hairpin turns was the old Riverside International Raceway in Riverside, California.

A hairpin turn (also hairpin bend, hairpin corner, etc.), named for its resemblance to a hairpin/bobby pin, is a bend in a road with a very acute inner angle, making it necessary for an oncoming vehicle to turn almost 180º to continue on the road. Such turns in ramps and trails may be called switchbacks in American English, by analogy with switchback railways. In British English 'switchback' is more likely to refer to a heavily undulating road—a use extended from the rollercoaster and the other type of switchback railway. Image File history File links Download high resolution version (1500x1017, 235 KB) Summary Route du Col de Braus I (User:Ericd) took this picture myself with a Minolta SR-T 100X and 200mm f/4. ... Image File history File links Download high resolution version (1500x1017, 235 KB) Summary Route du Col de Braus I (User:Ericd) took this picture myself with a Minolta SR-T 100X and 200mm f/4. ... Alpes-Maritimes is a département in the extreme southeast corner of France. ... Image File history File links Bobby-pin. ... Image File history File links Bobby-pin. ... A bobby pin is a small pin or clip, usually of metal, used in coiffure to hold hair in place. ... Image File history File links Download high resolution version (1178x766, 509 KB) Stilfserjoch (Passo dello Stelvio), Italien/Italy, taken in August 1997. ... Image File history File links Download high resolution version (1178x766, 509 KB) Stilfserjoch (Passo dello Stelvio), Italien/Italy, taken in August 1997. ... ... Image File history File linksMetadata Download high-resolution version (768x1024, 237 KB) File links The following pages on the English Wikipedia link to this file (pages on other projects are not listed): Hairpin turn Metadata This file contains additional information, probably added from the digital camera or scanner used to... Image File history File linksMetadata Download high-resolution version (768x1024, 237 KB) File links The following pages on the English Wikipedia link to this file (pages on other projects are not listed): Hairpin turn Metadata This file contains additional information, probably added from the digital camera or scanner used to... Mont Ventoux is a mountain in the Provence region of southern France, located some 20 km north-east of Carpentras, Vaucluse. ... Riverside Raceway (1969 to 1989 verson) under a rough skech through MS paint. ... Riverside Raceway (1969 to 1989 verson) under a rough skech through MS paint. ... Riverside International Raceway (Sometimes known as RIR or Riverside Raceway) was a race track or road course in Riverside, California. ... Nickname: Location in the state of California Coordinates: , Country United States State California County Riverside Government  - Mayor Ron Loveridge Area  - City  78. ... A bobby pin is a small pin or clip, usually of metal, used in coiffure to hold hair in place. ... A trail, in the most general sense, is any linear route for travel. ... For other uses, see American English (disambiguation). ... A railway zig zag is a way of climbing hills in difficult country with a minimal need for tunnels and heavy earthworks. ... British English (BrE, en-GB) is a broad term used to distinguish the forms of the English language used in the United Kingdom from forms used elsewhere. ... Designed by La Marcus Thompson in 1881, the original Switchback Railway at Coney Island was constructed in 1884 and was the first roller coaster in America. ...


Hairpin turns are often built when a route climbs up or down a steep slope, so that it can travel mostly across the slope with only moderate steepness, and are often arrayed in a zigzag pattern. Highways with repeating hairpin turns allow easier, safer ascents and descents of mountainous terrain than a direct, steep climb and descent, at the price of greater distances of travel. Highways of this style are also generally less costly to build and maintain than highways with tunnels. This article or section does not cite any references or sources. ... A disused railway tunnel now converted to pedestrian and bicycle use, near Houyet, Belgium A tunnel is an underground passage. ...


On occasion, the road may loop completely, using a tunnel or bridge to cross itself (example on Reunion Island: 21°10′52″S, 55°27′17″E). Réunion is an island and overseas département (département doutre-mer, or DOM) of France, located in the Indian Ocean east of Madagascar, about 200 km southwest of Mauritius. ...


In trail building, an alternative to switchbacks is the stairway. Spiral (double helix) stairway in the Vatican Museum Stairs, staircase, stairway, stairwell, and flight of stairs are all names for a construction designed to bridge a large vertical distance by dividing it into smaller vertical distances, called steps. ...


Roads with switchbacks

Some roads with switchbacks (hairpin turns) include:


Europe: World map showing the location of Europe. ...

USA: Alpe dHuez is a mountain in the Central French Alps, located on the territory of the commune of Huez, in the Isère département. ... Some of the 48 hairpin turns near the top of the northern ramp of the Stilfserjoch (Passo dello Stelvio) The Stelvio Pass (Italian: , German: ), located in Italy, is at 2757 m the highest paved mountain pass in the Eastern Alps, and the second highest in the Alps, after the Col... Petter Solberg driving on gravel at the 2006 Cyprus Rally, a World Rally Championship event. ... The Col de Turini is a 1607m mountain pass in the French Alpes Maritimes, near Sospel in the Arrondissement of Nice. ... Stephane Sarrazin driving a Subaru Impreza WRC on the Monte Carlo Rally Carlos Sainz driving a Toyota Corolla WRC on the Monte Carlo Rally 2003 Citroën Xsara T4 WRC The Monte Carlo Rally (officially Rallye Automobile Monte Carlo) is a rally racing event organized each year by the Automobile... Hillclimbing (also known as hill climbing, speed hillclimbing or speed hill climbing) is a branch of motorsport in which drivers compete against the clock to complete an uphill course. ... For a list of Tour de France winners, see Detailed list of Tour de France winners. ... The Giro dItalia, also simply known as the Giro, is a long distance road bicycle racing stage race for professional cyclists held over three weeks in May or early June in and around Italy. ... The Tour de Suisse (English: Tour of Switzerland) is a UCI ProTour stage race held annually in June. ... The Vuelta a España bicycle race is one of the three Grand Tours of Europe and, after the Tour de France and the Giro dItalia, is the third most important road cycling stage race in the world. ... This article does not cite any references or sources. ... To Catch a Thief is a 1955 film directed by Alfred Hitchcock, starring Cary Grant, Grace Kelly, Jessie Royce Landis and John Williams. ...

Americas: Lombard Streets famed twists Lombard Street in San Francisco, California is an east-west thoroughfare that runs from The Presidio, through the Cow Hollow neighborhood (through which Lombard Street is at its busiest and widest and is co-signed as U.S. Highway 101 for the 12 blocks between... Beartooth Pass in June 2004. ... Official language(s) English Capital Helena Largest city Billings Area  Ranked 4th  - Total 147,165 sq mi (381,156 km²)  - Width 255 miles (410 km)  - Length 630 miles (1,015 km)  - % water 1  - Latitude 44°26N to 49°N  - Longitude 104°2W to 116°2W Population  Ranked... Official language(s) English Capital Cheyenne Largest city Cheyenne Area  Ranked 10th  - Total 97,818 sq mi (253,348 km²)  - Width 280 miles (450 km)  - Length 360 miles (580 km)  - % water 0. ... United States Highway 93 is a major north-south United States highway in the western U.S., extending between the Canadian border in Montana, where it connects with B.C. Highway 93, and Wickenburg, Arizona, a small town about 50 miles (80 km) northwest of Phoenix. ... Hoover Dam by Ansel Adams Hoover Dam ( ), also known as Boulder Dam, is a concrete gravity-arch dam in the Black Canyon of the Colorado River, on the border between the U.S. states of Arizona and Nevada. ... State Route 89A (SR 89A) is the section of U.S. Route 89A decommissioned between Flagstaff, Arizona and Prescott Valley, Arizona. ... Oak Creek Canyon is a 1000-2000 foot deep gorge in northern Arizona located between the cities of Flagstaff and Sedona. ... Official language(s) English Capital Phoenix Largest city Phoenix Area  Ranked 6th  - Total 113,998 sq mi (295,254 km²)  - Width 310 miles (500 km)  - Length 400 miles (645 km)  - % water 0. ... JUNCTION POSTMILE I-5 ORA 0. ... The village of Bodega Bay on Bodega Harbor Bodega Bay is a census-designated place located in Sonoma County, California. ... Sir Alfred Joseph Hitchcock KBE (August 13, 1899 – April 29, 1980) was a highly influential British film director and producer who pioneered many techniques in the suspense and thriller genres. ... The Birds (1963) is a horror film by Alfred Hitchcock, loosely based on the short story The Birds (ISBN 0-582-41798-8) by Daphne du Maurier. ... NY redirects here. ... The Taconic State Parkway is a part of the New York State highway system. ... Putnam County is the name of 9 counties in the United States of America, many of which are named for Israel Putnam, who was a hero in the French and Indian War and a general in the American Revolutionary War: Putnam County, Florida Benjamin A. Putnam, an officer in the... The logistic function or logistic curve is defined by the mathematical formula: for real parameters a, m, n, and . ... Blue Ridge Parkway route map The Blue Ridge Parkway is a National Parkway and All-American Road in the United States, noted for its scenic beauty. ... Official language(s) English Capital Raleigh Largest city Charlotte Area  Ranked 28th  - Total 53,865 sq mi (139,509 km²)  - Width 150 miles (240 km)  - Length 560[1] miles (901 km)  - % water 9. ... This article contains a trivia section. ... The Cherohala Skyway is a paved 50 mile, two-lane road that connects connects Tellico Plains, TN to Robbinsville, NC. It is named from a combination of the Cherokee National Forest and Nantahala National Forest, Cherokee and Nantahala. ... Official language(s) English Capital Nashville Largest city Memphis Largest metro area Nashville Area  Ranked 36th  - Total 42,169 sq mi (109,247 km²)  - Width 120 miles (195 km)  - Length 440 miles (710 km)  - % water 2. ... Hawaii State Highway 61 is the main highway connecting downtown Honolulu with Windward O‘ahu, including Kailua and Kaneohe. ... OÊ»ahu (usually Oahu outside Hawaiian and Hawaiian English), the Gathering Place, is the third largest of the Hawaiian Islands and most populous island in the State of HawaiÊ»i. ... Honolulu as seen from the International Space Station Honolulu is the largest city and the capital of the U.S. state of Hawai‘i. ... Highway 7 is a highway in west-central Arkansas. ... Official language(s) English Capital Little Rock Largest city Little Rock Area  Ranked 29th  - Total 53,179 sq mi (137,002 km²)  - Width 239 miles (385 km)  - Length 261 miles (420 km)  - % water 2. ... U.S. Highway 129 is a spur of U.S. Highway 29. ... Official language(s) English Capital Nashville Largest city Memphis Largest metro area Nashville Area  Ranked 36th  - Total 42,169 sq mi (109,247 km²)  - Width 120 miles (195 km)  - Length 440 miles (710 km)  - % water 2. ... Official language(s) English Capital Raleigh Largest city Charlotte Area  Ranked 28th  - Total 53,865 sq mi (139,509 km²)  - Width 150 miles (240 km)  - Length 560[1] miles (901 km)  - % water 9. ... Massachusetts State Highway 2, always referred to simply as Route 2, is a major East-West state highway in Massachusetts. ... The Berkshires are a branch of the Appalachian Mountains in Western Massachusetts. ...

  • Mexican autopista 95D has a famous hairpin turn known as "La Pera" (The Pear), due to its loose resemblance with that fruit's shape.

Asia: This page meets Wikipedias criteria for speedy deletion. ...

  • The World War II-era Burma Road, constructed over the rugged terrain between the (then) British colony of Burma and China has many hairpin curves to accommodate traffic to supply China, then otherwise isolated by sea and land.
  • In Japan, there is the known Nikkō Irohazaka, a 1-way switchback mountain road (of course there are 2 separate roads; up and down), located at Tochigi Perfecture

Australia: Combatants Allied powers: China France Great Britain Soviet Union United States and others Axis powers: Germany Italy Japan and others Commanders Chiang Kai-shek Charles de Gaulle Winston Churchill Joseph Stalin Franklin Roosevelt Adolf Hitler Benito Mussolini Hideki Tōjō Casualties Military dead: 17,000,000 Civilian dead: 33,000... Burma Road The Burma Road is a road linking Burma (also called Myanmar) with China. ... Tochigi (栃木市 Tochigi-shi) is a city located in Tochigi Prefecture, Japan. ...

Mt Hotham in the summer Mt. ... View from Myrtleford to Mount Buffalo National Park The Great Alpine Road (B500) is a country road from Wangaratta to Bairnsdale passing through the Victorian Alps. ...

Motorsports

Many venues used for motor racing incorporate hairpin turns in the racecourse even if the terrain is relatively level. In this case the purpose is to provide a greater challenge to the drivers or simply increase the lap length without increasing the area occupied by the track.


Railways

If a railway curves back on itself like a hairpin turn, it is called a Horseshoe curve. See Hillclimbing (railway) for other railway ascent methods. As far as possible, a railway trying to climb a steep gradient tries to follow the contours so that cuttings and embankments are kept to a minimum, while also minimizing the total length of the line. ... While railways have a great ability to haul very heavy loads, this advantage only really applies when the tracks are fairly level. ...


  Results from FactBites:
 
Hairpin turn - Wikipedia, the free encyclopedia (276 words)
A nearly 180-degree turn in a road, trail, or ramp is called a hairpin turn (also hairpin bend or, if in a trail, a switchback).
These turns are often built when a route climbs up or down a steep slope, so that it can travel mostly across the slope with only moderate steepness, and are often arrayed in a zigzag pattern.
Highways with hairpin turns allow easier, safer ascents and descents of mountainous terrain than a direct, steep climb and descent, at the price of greater distances of travel.
License Walkthrough (5867 words)
Turn 9 can be taken at full speed (as long as you don't go bonkers cheating on the test) and Turn 10 can be taken with some sliding (provided that you are not willing to touch the grass at either the left or right side of the track).
Turn 2- You may be dizzy as you encounter this turn because you have to deal with the chicanes right after this turn.
Turn 7 should be taken at between 75-80mph and you should make sure that you are cutting the apex, slowing down just before you exit the tunnel, and cutting as you leave the tunnel.
  More results at FactBites »

 
 

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