Safety In Numbers
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Safety In Numbers
Safety in numbers is the hypothesis that, by being part of a large physical group or mass, an individual is less likely to be the victim of a mishap, accident, attack, or other bad event. Some related theories also argue (and can show statistically) that mass behaviour (by becoming more predictable and "known" to other people) can reduce accident risks, such as in traffic safety – in this case, the safety effect creates an actual reduction of danger, rather than just a redistribution over a larger group. In biology The mathematical biologist W.D. Hamilton proposed his selfish herd theory in 1971 to explain why animals seek central positions in a group. Each individual can reduce its own domain of danger by situating itself with neighbours all around, so it moves towards the centre of the group. The effect was tested in brown fur seal predation by great white sharks. Using decoy seals, the distance between decoys was varied to produce different domains of danger. The seals wit ...
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Bike Bus
A bike bus, also known as a bike train or a cycle train, or cycle bus is a group of people who cycle together on a set route following a set timetable other than for sporting purposes. Cyclists may join or leave the bike bus at various points along the route. Most bike buses are a form of collective bicycle commuting (usually parents cycling their children together). A bike bus is often seen as a cyclist's version of a walking bus, although walking buses tend to be seen as exclusively for children travelling to school. Bike buses may have social, environmental, or political aims. One of the founders of the Aire Valley Bike Bus said "The Aire Valley Bike Bus was set up ... to encourage people to take up cycling and make the journey to work a more interesting and sociable experience.". The stated aim of the Central Florida Bike Bus is "bringing together cyclists who want to commute by bike using the same roads as every other vehicle". The aim of the D12BikeBus in Dublin 12, Irel ...
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Critical Mass, San Francisco, April 29, 2005
Critical or Critically may refer to: *Critical, or critical but stable, medical states **Critical, or intensive care medicine *Critical juncture, a discontinuous change studied in the social sciences. *Critical Software, a company specializing in mission and business critical information systems *Critical theory, a school of thought that critiques society and culture by applying knowledge from the social sciences and the humanities *Critically endangered, a risk status for wild species *Criticality (status), the condition of sustaining a nuclear chain reaction Art, entertainment, and media *Critical (novel), ''Critical'' (novel), a medical thriller written by Robin Cook *Critical (TV series), ''Critical'' (TV series), a Sky 1 TV series *Critical (Person of Interest), "Critical" (''Person of Interest''), an episode of the American television drama series ''Person of Interest'' *"Critical", a 1999 single by Zion I People *Cr1TiKaL (born 1994), an American YouTuber and Twitch streame ...
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Pedestrian
A pedestrian is a person traveling on foot, whether walking or running. In modern times, the term usually refers to someone walking on a road or pavement, but this was not the case historically. The meaning of pedestrian is displayed with the morphemes ''ped-'' ('foot') and ''-ian'' ('characteristic of'). This word is derived from the Latin term ''pedester'' ('going on foot') and was first used (in English language) during the 18th century. It was originally used, and can still be used today, as an adjective meaning plain or dull. However, in this article it takes on its noun form and refers to someone who walks. The word pedestrian may have been used in middle French in the Recueil des Croniques et Anchiennes Istories de la Grant Bretaigne, à présent nommé Engleterre. In California the definition of a pedestrian has been broadened to include anyone on any human powered vehicle that is not a bicycle, as well as people operating self-propelled wheelchairs by reason of p ...
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Crowd Psychology
Crowd psychology, also known as mob psychology, is a branch of social psychology. Social psychologists have developed several theories for explaining the ways in which the psychology of a crowd differs from and interacts with that of the individuals within it. Major theorists in crowd psychology include Gustave Le Bon, Gabriel Tarde and Sigmund Freud. This field relates to the behaviors and thought processes of both the individual crowd members and the crowd as an entity. Crowd behavior is heavily influenced by the loss of responsibility of the individual and the impression of universality of behavior, both of which increase with crowd size. Origins The first debate in crowd psychology began in Rome at the first International Congress of Criminal Anthropology on 16 November 1885. The meeting was dominated by Cesare Lombroso and his fellow Italians, who emphasized the biological determinates. : "Lombroso detailed before the first congress his theories of the physical anomalies ...
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Evolutionary Biology
Evolutionary biology is the subfield of biology that studies the evolutionary processes (natural selection, common descent, speciation) that produced the diversity of life on Earth. It is also defined as the study of the history of life forms on Earth. Evolution is based on the theory that all species are related and they gradually change over time. In a population, the genetic variations affect the physical characteristics i.e. phenotypes of an organism. These changes in the phenotypes will be an advantage to some organisms, which will then be passed onto their offspring. Some examples of evolution in species over many generations are the Peppered Moth and Flightless birds. In the 1930s, the discipline of evolutionary biology emerged through what Julian Huxley called the modern synthesis of understanding, from previously unrelated fields of biological research, such as genetics and ecology, systematics, and paleontology. The importance of studying Evolutionary biology is ...
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Shanthi Ameratunga
Shanthi Neranjana Ameratunga is a New Zealand public health academic. As of September 2018 she is currently a full professor at the University of Auckland. Academic career After a 2005 PhD titled '' 'Disability following car crashes: an epidemiological investigation' '' at the University of Auckland, supervised by Robyn Norton and Rod Jackson, Ameratunga joined the staff, rising to full professor. Ameratunga's work involves car accidents, alcohol, trauma, disabilities and rehabilitation. In 2020, she served on “A future for the world’s children?”, a WHO-UNICEF-'' Lancet'' Commission, co-chaired by Helen Clark and Awa Coll-Seck. Notable students of Ameratunga include Josephine Herman. Selected works * Connor, Jennie, Robyn Norton, Shanthi Ameratunga, Elizabeth Robinson, Ian Civil, Roger Dunn, John Bailey, and Rod Jackson. "Driver sleepiness and risk of serious injury to car occupants: population based case control study." BMJ 324, no. 7346 (2002): 1125. * Salke ...
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Transportation (journal)
''Transportation'' is a peer-reviewed academic journal of research in transportation, published by Springer Science+Business Media. The journal focuses on issues of relevance to the formulation of policy, the preparation and evaluation of plans, and the day-to-day operations management of transport systems. It concerns itself with the policies and systems themselves, as well as with their impacts on and relationships with other aspects of the social, economic and physical environment. Its first issue was published in 1972. Abstracting and indexing According to the ''Journal Citation Reports'', it has a 2019 impact factor of 4.082, placing it 11th in the category "transportation science and technology". In a ranking of journals in all of economics produced as part of the Research Papers in Economics database, it was ranked 204th by impact factor and 195th by h-index The ''h''-index is an author-level metric that measures both the productivity and citation impact of the p ...
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Walking Bus
A walking bus (crocodile, walking school bus) is a form of student transport for schoolchildren who, chaperoned typically by two adults (a "driver" leads and a "conductor" follows), walk to school along a set route, with some similarities to a school bus route. Like a real bus, walking buses have a fixed route with designated "bus stops" and "pick up times" at which they pick up and "drop off" children. History The concept of the walking bus was first invented in Japan Australian transport activist David Engwicht is often given credit for inventing the WSB system in the 1990s. It was introduced in the United Kingdom in 1998 by Hertfordshire County Council. It was first used by pupils of Wheatfields Junior School in St Albans, the United Kingdom in 1998 Walking Buses have remained popular in the United Kingdom and have recently gained a level of popularity elsewhere in Europe, North America and New Zealand. Proponents of walking buses say that its aims are to: *Encourage p ...
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Predator Satiation
Predator satiation (less commonly called predator saturation) is an anti-predator adaptation in which prey briefly occur at high population densities, reducing the probability of an individual organism being eaten. When predators are flooded with potential prey, they can consume only a certain amount, so by occurring at high densities prey benefit from a safety in numbers effect. This strategy has evolved in a diverse range of prey, including notably many species of plants, insects, and fish. Predator satiation can be considered a type of refuge from predators. As available food increases, a predator has more chances of survival, growth, and reproduction. However, as food supply begins to overwhelm the predator's ability to consume and process it, consumption levels off. This pattern is evident in the functional response of type II. There are also limits to population growth ( numerical response), dependent on the generation time of the predator species. This phenomenon is partic ...
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Critical Mass (cycling)
Critical Mass is a form of direct action in which people meet at a set location and time and travel as a group through their neighbourhoods on bikes. The idea is for people to group together to make it safe for each other to ride bicycles through their streets, based on the old adage: ''there's safety in numbers''. Critical Mass events highlight the numbers of people who want to use their bike on the streets, but are usually unable to do so without risking their safety. They are a call to action to councils, governments and road planners to properly and thoughtfully design in the safety of all road users, including those who would prefer to walk and cycle, instead of prioritising motor traffic above all else. The event originated in 1992 in San Francisco (typically held on the last Friday of every month); by the end of 2003, the event was being held in over 300 cities around the world. Critical Mass has been described as "monthly political-protest rides", and characterized as be ...
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London Congestion Charge
The London congestion charge is a fee charged on most cars and motor vehicles being driven within the Congestion Charge Zone (CCZ) in Central London between 7:00 am and 6:00 pm Monday to Friday, and between 12:00 noon and 6:00 pm Saturday and Sunday. Inspired by Singapore's Electronic Road Pricing (ERP) system after London officials had travelled to the country, the charge was first introduced on 17 February 2003. The London charge zone is one of the largest congestion charge zones in the world, despite the removal of the Western Extension which operated between February 2007 and January 2011. The charge not only helps to reduce high traffic flow in the city streets, but also reduces air and noise pollution in the central London area and raises investment funds for London's transport system. The standard charge is £15, every day from 7:00 am to 6:00 pm, for each non-exempt vehicle driven within the zone, with a penalty of between £65 and £195 levied for non-payment. The ...
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Cyclist
Cycling, also, when on a two-wheeled bicycle, called bicycling or biking, is the use of cycles for transport, recreation, exercise or sport. People engaged in cycling are referred to as "cyclists", "bicyclists", or "bikers". Apart from two-wheeled bicycles, "cycling" also includes the riding of unicycles, tricycles, quadricycles, recumbent and similar human-powered vehicles (HPVs). Bicycles were introduced in the 19th century and now number approximately one billion worldwide. They are the principal means of transportation in many parts of the world, especially in densely populated European cities. Cycling is widely regarded as an effective and efficient mode of transportation optimal for short to moderate distances. Bicycles provide numerous possible benefits in comparison with motor vehicles, including the sustained physical exercise involved in cycling, easier parking, increased maneuverability, and access to roads, bike paths and rural trails. Cycling also offers a r ...
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