Rampover Angle
Breakover angle or rampover angle is the maximum possible supplementary angle (usually expressed in degrees) that a vehicle, with at least one forward wheel and one rear wheel, can drive over without the apex of that angle touching any point of the vehicle other than the wheels.Division of the Federal Register, United States: ''The Code of Federal Regulations of the United States of America'', page 447. U.S. Government Printing Office, 1979. SAE J689: Cancelled AUG 2009 Curbstone Clearance, Approach, Departure, and Ramp Breakover Angles--Passenger Car and Light TruckSAE J1100 NOV 2009 Motor Vehicle Dimensions This definition is contingent upon the wheels being in continuous contact with the supporting surface(s). Breakover angle differs from ground clearance, which is the shortest distance between the ground and lowest point on the vehicle. Relevance Breakover angle is a relevant performance metric in many common vehicle scenarios, including: * Off-roading. * Loading a vehicle on ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Speed Bump
Speed bumps (also called traffic thresholds, speed breakers or sleeping policemen) are a class of traffic calming devices that use vertical deflection to slow motor-vehicle traffic in order to improve safety conditions. Variations include the speed hump, speed cushion, and speed table. The use of vertical deflection devices is widespread around the world, and they are most commonly used to enforce a speed limit under . Although speed bumps are effective in keeping vehicle speeds down, their use is sometimes controversial—as they can increase traffic noise, may damage vehicles if traversed at too great a speed (despite that being the point), and slow emergency vehicles. Poorly-designed speed bumps that stand too tall or with too-sharp an angle can be disruptive for drivers, and may be difficult to navigate for vehicles with low Ride height, ground clearance, even at very low speeds. Many sports cars have this problem with such speed bumps. Speed bumps can also pose serious ha ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Ride Height
Ride height or ground clearance is the amount of space between the base of an automobile tire and the lowest point of the automobile, typically the bottom exterior of the differential housing (even though the lower shock mounting point may be lower); or, more properly, to the shortest distance between a flat, level surface, and the lowest part of a vehicle other than those parts designed to contact the ground (such as tires, tracks, skis, etc.). Ground clearance is measured with standard vehicle equipment, and for cars, is usually given with no cargo or passengers. Function Ground clearance is a critical factor in several important characteristics of a vehicle. For all vehicles, especially cars, variations in clearance represent a trade-off between handling, ride quality, and practicality. A higher ride height and ground clearance means that the wheels have more vertical room to travel and absorb road shocks. Also, the car is more capable of being driven on surfaces that ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Overhang (automotive)
Overhangs are the lengths of a road vehicle which extend beyond the wheelbase at the front and rear. They are normally described as front overhang and rear overhang. Practicality, style, and performance are affected by the size and weight of overhangs. Background Along with Ride height, clearance, the length of overhangs determines the approach and departure angles, which determine the vehicle's ability to overcome steep obstacles and rough terrain. The longer the front overhang, the smaller is the approach angle, and thus the car's ability to climb or descend steep ramps without damaging the front bumper (automobile), bumpers is smaller. Typically, the rear overhang is larger on rear-wheel drive cars, while the front overhang is larger on front-wheel drive cars. For rolling stock, each overhang is the length from the bogie pivots to the end of the car, or in the case of two axles the distance outside of the wheelbase to the end of the car. Journalist Paul Niedermeyer has prop ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Glossary Of Road Transport Terms
Terminology related to road transport—the transport of passengers or goods on paved (or otherwise improved) routes between places—is diverse, with variation between dialects of English. There may also be regional differences within a single country, and some terms differ based on the side of the road traffic drives on. This glossary is an alphabetical listing of road transport terms. 0–9 ;2+1 road :A specific category of three-lane road, consisting of two lanes in one direction and one lane in the other, alternating every few kilometres, and separated usually with a steel cable barrier. ; 2-1 road :A specific category of one-lane road being built in Denmark and Sweden, consisting of a single two-way lane with extra wide shoulders for pedestrians and cyclists. ; 2+2 road :A specific type of dual carriageway being built in Ireland, Sweden, and Finland, consisting of two lanes in each direction separated by a steel cable barrier. ;3-way junction or 3-way intersection : ;5-1-1 ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Approach And Departure Angles
Approach angle is the maximum angle of a ramp onto which a vehicle can climb from a horizontal plane without interference. It is defined as the angle between the ground and the line drawn between the front tire and the lowest-hanging part of the vehicle at the front overhang. Departure angle is its counterpart at the rear of the vehicle – the maximum ramp angle from which the car can descend without damage. Approach and departure angles are also referred to as ramp angles. Approach and departure angles are indicators of off-road ability of the vehicle: they indicate how steep of obstacles, such as rocks or logs, the vehicle can negotiate according to its body shape alone. See also * Breakover angle Breakover angle or rampover angle is the maximum possible supplementary angle (usually expressed in degrees) that a vehicle, with at least one forward wheel and one rear wheel, can drive over without the Apex (geometry), apex of that angle touchi ... * Overhang (automotive) * R ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Ferry Slip
A ferry slip is a specialized docking facility that receives a ferryboat or train ferry. A similar structure called a barge slip receives a barge or car float that is used to carry wheeled vehicles across a body of water. Often a ferry intended for motor vehicle transport will carry its own adjustable ramp - when elevated it acts as a wave guard and is lowered to a horizontal position at the terminus to meet a permanent road segment that extends under water. In other cases, the ramp is installed at the ferry slip and is called a linkspan or apron. Such a ramp is adjustable to accommodate varying water heights and ferry loadings and to move it out of the way during approach and exit. If railcars are carried by the ferry the apron will have tracks for them. In some parts of the world, the structures are also known as linkspans and transfer bridges. Similar structures are used to receive barges, particularly if the barge is for the carriage of railcars. San Francisco example ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Linkspan
A linkspan or link-span is a type of drawbridge used mainly in the operation of moving vehicles on and off a roll-on/roll-off (RO-RO) vessel or ferry, particularly to allow for tidal changes in water level. Linkspans are usually found at ferry terminals where a vessel uses a combination of ramps either at the stern, bow or side to load or unload cars, vans, trucks and buses onto the shore, or alternately at the stern and/or the bow to load or unload railroad cars. History The first linkspans appeared at the end of the 19th century when train ferries came into operation. Each rail ferry berth has to be specifically designed to make sure that it fitted one class of ship. In most of these vessels it was also possible to carry some road vehicles. By the mid 20th century with the rise of road transport, general purpose Ro Ro ferries started to come into service. Most could use the rail ferry berths but generally they were fitted with stern ramps that had the dual function of g ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Level Crossing
A level crossing is an intersection where a railway line crosses a road, Trail, path, or (in rare situations) airport runway, at the same level, as opposed to the railway line or the road etc. crossing over or under using an Overpass#Railway, overpass or tunnel. The term also applies when a light rail line with separate Right-of-way (railroad), right-of-way or reserved track crosses a road in the same fashion. Other names include railway level crossing, railway crossing (chiefly international), grade crossing or railroad crossing (chiefly American), road through railroad, criss-cross, train crossing, and RXR (abbreviated). There are more than 100,000 level crossings in Europe and more than 200,000 in North America. Road-grade crossings are considered incompatible with high-speed rail and are virtually non-existent in European high-speed train operations. File:The 5.20 for West Kirby leaving Hoylake - geograph.org.uk - 1503619.jpg, A level crossing at Hoylake, Merseyside, Engl ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Lalibela Bad Parking Job (28470650266)
Lalibela () is a town in the Amhara Region of Ethiopia. Located in the Lasta district and North Wollo Zone, it is a tourist site for its famous rock-cut monolithic churches designed in contrast to the earlier monolithic churches in Ethiopia. The whole of Lalibela is a large and important site for the antiquity, medieval, and post-medieval civilization of Ethiopia. To Christians, Lalibela is one of Ethiopia's holiest cities, and a center of pilgrimage. Ethiopia was one of the earliest nations to adopt Christianity in the first half of the 4th century, and its historical roots date to the time of the Apostles. The churches themselves date from the 7th to 13th centuries, and are traditionally dated to the reign of the Zagwe (Agaw) king Gebre Meskel Lalibela (r. ). The layout and names of the major buildings in Lalibela are widely accepted, especially by local clergy, to be a symbolic representation of Jerusalem. This has led some experts to date the current church construction ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Off-roading
Off-roading is the act of driving or riding in a vehicle on unpaved surfaces such as sand, dirt, gravel, riverbeds, mud, snow, rocks, or other natural terrain. Off-roading ranges from casual drives with regular vehicles to competitive events with customized vehicles and skilled drivers. Off-road vehicle Off-road vehicles are either capable of or specifically developed for off-road driving. These vehicles often have features designed specifically for use in off-road conditions such as suspension lifts, off-road tires, skid plates, vehicle snorkel, snorkels, roll cages, or strengthened drivetrains. Types of recreational off-roading Dune bashing Dune bashing is a specific form of off-roading performed on Dune, sand dunes. Dune buggy, Dune Buggies, sport utility vehicle, Sport-utility vehicles, and All-terrain vehicle, ATVs are often used. Vehicles driven on sand dunes are often equipped with a roll cage for safety in the case of an Vehicle rollover, overturn. The tire pres ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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MUTCD W10-5
The ''Manual on Uniform Traffic Control Devices for Streets and Highways'' (usually referred to as the ''Manual on Uniform Traffic Control Devices'', abbreviated MUTCD) is a document issued by the Federal Highway Administration (FHWA) of the United States Department of Transportation (USDOT) to specify the standards by which traffic signs, road surface markings, and signals are designed, installed, and used. Federal law requires compliance by all traffic control signs and surface markings on roads "open to public travel", including state, local, and privately owned roads (but not parking lots or gated communities). While some state agencies have developed their own sets of standards, including their own MUTCDs, these must substantially conform to the federal MUTCD. The MUTCD defines the content and placement of traffic signs, while design specifications are detailed in a companion volume, ''Standard Highway Signs and Markings''. This manual defines the specific dimensions, colors ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |