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Autobus No Articulado Del Transmetro De Guatemala
A bus (contracted from omnibus, with variants multibus, motorbus, autobus, etc.) is a road vehicle that carries significantly more passengers than an average car or van. It is most commonly used in public transport, but is also in use for charter purposes, or through private ownership. Although the average bus carries between 30 and 100 passengers, some buses have a capacity of up to 300 passengers. The most common type is the single-deck rigid bus, with double-decker and articulated buses carrying larger loads, and midibuses and minibuses carrying smaller loads. Coaches are used for longer-distance services. Many types of buses, such as city transit buses and inter-city coaches, charge a fare. Other types, such as elementary or secondary school buses or shuttle buses within a post-secondary education campus, are free. In many jurisdictions, bus drivers require a special large vehicle licence above and beyond a regular driving licence. Buses may be used for scheduled ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Driving Licence
A driver's license is a legal authorization, or the official document confirming such an authorization, for a specific individual to operate one or more types of motorized vehicles—such as motorcycles, cars, trucks, or buses—on a public road. Such licenses are often plastic and the size of a credit card. In most international agreements the wording "driving permit" is used, for instance in the Vienna Convention on Road Traffic. In this article's country specific sections, the local spelling variant is used. Most American jurisdictions issue a permit with "driver license" printed on it but some use "driver's license", which is conversational American English. Canadian English uses both "driver's licence" as well as "driver licence" ( Atlantic Canada). The Australian and New Zealand English equivalent is "driver licence". In British English and in many former British colonies it is "driving licence". The laws relating to the licensing of drivers vary between jurisdi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Compressed Natural Gas
Compressed natural gas (CNG) is a fuel gas mainly composed of methane (CH4), compressed to less than 1% of the volume it occupies at standard atmospheric pressure. It is stored and distributed in hard containers at a pressure of , usually in cylindrical or spherical shapes. CNG is used in traditional petrol/internal combustion engine vehicles that have been modified, or in vehicles specifically manufactured for CNG use: either alone (dedicated), with a segregated liquid fuel system to extend range (dual fuel), or in conjunction with another fuel ( bi-fuel). It can be used in place of petrol (gasoline), diesel fuel, and liquefied petroleum gas (LPG). CNG combustion produces fewer undesirable gases than the aforementioned fuels. In comparison to other fuels, natural gas poses less of a threat in the event of a spill, because it is lighter than air and disperses quickly when released. Biomethane – refined biogas from anaerobic digestion or landfills – can be used. In ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electric Bus
An electric bus is a bus that is propelled using electric motors as opposed to an internal combustion engine. Electric buses can store the needed electricity on-board, or be fed continuously from an external source. The majority of buses storing electricity are battery electric buses (which this article mostly deals with), where the electric motor obtains energy from an electric vehicle battery, onboard battery pack, although examples of other storage modes do exist, such as the gyrobus which uses flywheel energy storage. When electricity is not stored on board, it is supplied by contact with outside power sources. For example, overhead wires as in the trolleybus, or with a ground-level power supply, or through Inductive charging#Dynamic charging, inductive charging. As of 2019, 99% of all battery electric buses in the world have been deployed in Mainland China, with more than 421,000 buses on the road, which is 17% of China's total bus fleet. For comparison, the United Sta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fuel Cell Bus
A fuel cell bus is a bus that uses a hydrogen fuel cell as its power source for electrically driven wheels, sometimes augmented in a hybrid fashion with batteries or a supercapacitor. The only emission from the bus is water. Several cities around the world have trialled and tested fuel cell buses, with over 5,600 buses in use worldwide, the majority of which are in China. Background Owing to the greenhouse gas emissions and particulate pollution produced by diesel buses, transport operators have been moving towards greener and cleaner buses (such as hybrid electric buses and battery electric buses) since the early 2000s. However, battery electric buses lack range compared to diesel buses, take time to charge and have reduced energy storage in cold weather. Transport operators have therefore evaluated alternatives such as hydrogen fuel cell buses. Hydrogen fuel cells generate electricity by reacting hydrogen and oxygen in the presence of a catalyst, the by-product of which is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hybrid Electric Bus
A hybrid electric bus is a bus that combines a conventional internal combustion engine propulsion system with an electric propulsion system. These type of buses normally use a Diesel-electric powertrain and are also known as hybrid Diesel-electric buses. The introduction of hybrid electric vehicles and other green vehicles for purposes of public transport forms a part of sustainable transport schemes. Powertrain Types of hybrid vehicle drivetrain A hybrid electric bus may have either a parallel powertrain (e.g. Volvo B5LH) or a series powertrain (e.g. some versions of the Alexander Dennis Enviro400 MMC). Plug-in hybrid A plug-in hybrid school bus effort began in 2003 in Raleigh, NC when Advanced Energy began working between districts across the country and manufacturers to understand the needs of both. The effort demonstrated both a technical and business feasibility and as a result was able to secure funding in 2005 froNASEOto purchase up to 20 buses. The resulting R ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Internal Combustion Engine
An internal combustion engine (ICE or IC engine) is a heat engine in which the combustion of a fuel occurs with an oxidizer (usually air) in a combustion chamber that is an integral part of the working fluid flow circuit. In an internal combustion engine, the expansion of the high-temperature and high-pressure gases produced by combustion applies direct force to some component of the engine. The force is typically applied to pistons ( piston engine), turbine blades (gas turbine), a rotor (Wankel engine), or a nozzle ( jet engine). This force moves the component over a distance, transforming chemical energy into kinetic energy which is used to propel, move or power whatever the engine is attached to. This replaced the external combustion engine for applications where the weight or size of an engine was more important. The first commercially successful internal combustion engine was created by Étienne Lenoir around 1860, and the first modern internal combustion engine, known ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trolleybus
A trolleybus (also known as trolley bus, trolley coach, trackless trolley, trackless tramin the 1910s and 1920sJoyce, J.; King, J. S.; and Newman, A. G. (1986). ''British Trolleybus Systems'', pp. 9, 12. London: Ian Allan Publishing. .or trolleyDunbar, Charles S. (1967). ''Buses, Trolleys & Trams''. Paul Hamlyn Ltd. (UK). Republished 2004 with or 9780753709702.) is an electric bus that draws power from dual overhead wires (generally suspended from roadside posts) using spring-loaded trolley poles. Two wires, and two trolley poles, are required to complete the electrical circuit. This differs from a tram or streetcar, which normally uses the track as the return path, needing only one wire and one pole (or pantograph). They are also distinct from other kinds of electric buses, which usually rely on batteries. Power is most commonly supplied as 600-volt direct current, but there are exceptions. Currently, around 300 trolleybus systems are in operation, in cities and towns in 4 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Steam Bus
A steam bus is a bus powered by a steam engine. Early steam-powered vehicles designed for carrying passengers were more usually known as steam carriages, although this term was sometimes used to describe other early experimental vehicles too. History 1830-1895 Regular intercity bus services by steam-powered buses were pioneered in England in the 1830s by associates of Sir Goldsworthy Gurney and by Walter Hancock among others, running reliable services over road conditions which were too hazardous for horse-drawn transportation. Steam carriages were much less likely to overturn, and did not "run away with" the customer as horses sometimes did. They travelled faster than horse-drawn carriages ( over and an average of over longer distances). They could run at a half to a third of the cost of horse-drawn carriages. Their brakes did not lock and drag like horse-drawn transport (a phenomenon that increased damage to roads). According to engineers, steam carriages caused one-thi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Horsebus
A horse-bus or horse-drawn omnibus was a large, enclosed, and sprung horse-drawn vehicle used for passenger transport before the introduction of motor vehicles. It was mainly used in the late 19th century in both the United States and Europe, and was one of the most common means of transportation in cities. In a typical arrangement, two wooden benches along the sides of the passenger cabin held several sitting passengers facing each other. The driver sat on a separate, front-facing bench, typically in an elevated position outside the passengers' enclosed cabin. In the main age of horse buses, many of them were double-decker buses. On the upper deck, which was uncovered, the longitudinal benches were arranged back to back. Similar, if smaller, vehicles were often maintained at country houses (and by some hotels and railway companies) to convey servants and luggage to and from the railway station. Especially popular around 1870–1900, these vehicles were known as a 'private omni ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Political Campaign
A political campaign is an organized effort which seeks to influence the decision making progress within a specific group. In democracies, political campaigns often refer to electoral campaigns, by which representatives are chosen or referendums are decided. In modern politics, the most high-profile political campaigns are focused on general elections and candidates for head of state or head of government, often a president or prime minister. Campaign message The message of the campaign contains the ideas that the candidate wants to share with the voters. It is to get those who agree with their ideas to support them when running for a political position. The message often consists of several talking points about policy issues. The points summarize the main ideas of the campaign and are repeated frequently in order to create a lasting impression with the voters. In many elections, the opposition party will try to get the candidate "off message" by bringing up policy or person ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tour Bus Service
A tour bus service is an escorted tour (sometimes a package holiday) or bus service that takes visitors sightseeing, with routes around tourist attractions. Information Double-decker buses and open top buses are commonly used, for providing a good view. Large coaches are used internationally by tour operators, intercity bus lines and charters, for short and long distance destinations. These buses are larger than regular transit buses, with 2 to 4 axles (6 to 10 wheels). The history of tour buses in North America began in the early 20th century when trucks were converted to provide a means for sightseeing within large American cities. Gray Line, the largest sightseeing operators, began operations in 1910. Sightseeing was likely a side business for many intercity bus operators because the same types of buses were used (this remains true even today). World War II saw the industry decline, but it slowly re-emerged as an alternative to driving. Many musicians, entertainers, d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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