Search This Blog

Friday, August 19, 2022

Racial profiling in the United States

From Wikipedia, the free encyclopedia

Racial profiling is referred to regarding its use by law enforcement at the local, state, and federal levels, which leads to discrimination against people in the African American, Native American, Asian, Pacific Islander, Latino, Arab, and Muslim communities of the United States. Examples of racial profiling are the use of race to determine which drivers to stop for minor traffic violations (commonly referred to as 'driving while black, Asian, Native American, Middle Eastern, Hispanic, or brown'), or the use of race to determine which pedestrians to search for illegal contraband. Besides such disproportionate searching of African Americans, and members of other minority groups, other examples of racial profiling by law enforcement in the U.S. include the targeting of Hispanic and Latino Americans in the investigation of illegal immigration; and the focus on Middle Eastern and South Asians present in the country in screenings for ties to Islamic terrorism. These suspicions may be held on the basis of belief that members of a target racial group commit crimes at a higher rate than that of other racial groups.

Definitions

According to the American Civil Liberties Union (ACLU):

'Racial profiling refers to the practice by law enforcement officials of targeting individuals for suspicion of crime based on the individual's race, ethnicity, religion or national origin.

According to Minnesota House of Representatives analyst Jim Cleary:

"There appears to be at least two clearly distinguishable definitions of the term 'racial profiling': a narrow definition and a broad definition... Under the narrow definition, racial profiling occurs when a police officer stops and/or searches someone solely on the basis of the person's race or ethnicity... Under the broader definition, racial profiling occurs whenever police routinely use race as a factor that, along with an accumulation of other factors, causes an officer to react with suspicion and take action."

History

Sociologist Robert Staples emphasizes that racial profiling in the U.S. is "not merely a collection of individual offenses" but, rather, a systemic phenomenon across American society, dating back to the era of slavery, and, until the 1950s, was, in some instances, "codified into law". Enshrinement of racial profiling ideals in United States law can be exemplified by several major periods in U.S. history.

In 1693, Philadelphia's court officials gave police legal authority to stop and detain any Black person (freed or enslaved) seen wandering about. Starting around the mid 18th century, slave patrols were used to stop slaves at any location in order to ensure they were being lawful. In the mid 19th century, the Black Codes, a set of statutes, laws and rules, were enacted in the South in order to regain control over freed and former slaves and relegate African Americans to a lower social status. Similar discriminatory practices continued through the Jim Crow era.

Prior to U.S. immigration restrictions following the September 11 attacks, Japanese immigrants were rejected U.S. citizenship during World War II, for fear of disloyalty following the attacks on Pearl Harbor. What resulted was the government's preemptive internment of more than 100,000 Japanese immigrants and Japanese American citizens during World War II, as a measure against potential Japanese espionage, constituting a form of racial profiling.

In the late 1990s racial profiling became politicized when police and other law enforcement fell under scrutiny for the disproportionate traffic stops of minority motorists. Researchers from the American Civil Liberties Union (ACLU) provided evidence of widespread racial profiling, one study showed that while blacks only made up 42 percent of New Jersey's driving population, they accounted for 79 percent of motorists stopped in the state.

Supreme Court cases

Terry v. Ohio was the first challenge to racial profiling in the United States in 1968. This case was about African American people who were suspected to be stealing. The police officer arrested the three men and searched them and found a gun on two of the three men, and John W. Terry (one of the three men searched) was convicted and sentenced to jail. Terry challenged the arrest on the grounds that it violated the search and seizure clause of the Fourth Amendment; however, in an 8–1 ruling, the Supreme Court decided that the police officer acted in a reasonable manner, and with reasonable suspicion, under the Fourth Amendment. The decision in this case allowed for greater police discretion in identifying suspicious or illegal activities. This case resulted in the creation of the Terry stop, in which the police may stop a person based on reasonable suspicion of involvement in criminal activity.

In 1975, United States v. Brignoni-Ponce was decided. Felix Humberto Brignoni-Ponce was traveling in his vehicle and was stopped by border patrol agents because he appeared to be Mexican. The agents questioned Brignoni-Ponce and the other passengers in the car and discovered that the passengers were illegal immigrants, and the border agents subsequently arrested all occupants of the vehicle. The Supreme Court determined that the testimonies that led to the arrests, in this case, were not valid, as they were obtained in the absence of reasonable suspicion and the vehicle was stopped without probable cause, as required under the Fourth Amendment.

In 1996, the U.S. Supreme Court ruled in United States v. Armstrong that disparity in conviction rates is not unconstitutional in the absence of data that "similarly situated" defendants of another race were disparately prosecuted, overturning a 9th Circuit Court ruling that was based on "the presumption that people of all races commit all types of crimes – not with the premise that any type of crime is the exclusive province of any particular racial or ethnic group", waving away challenges based on the Fourth Amendment of the U.S. Constitution which guarantees the right to be safe from search and seizure without a warrant (which is to be issued "upon probable cause"), and the Fourteenth Amendment which requires that all citizens be treated equally under the law. To date, there have been no known cases in which any U.S. court dismissed a criminal prosecution because the defendant was targeted based on race. This Supreme Court decision doesn't prohibit government agencies from enacting policies prohibiting it in the field by agents and employees.

The Supreme Court also decided the case of Whren v. United States in 1996. Michael Whren was arrested on felony drug charges after police officers observed his truck sitting at an intersection for a long period of time before he failed to use his turn signal to drive away, and the officers stopped his vehicle for the traffic violation. Upon approaching the vehicle the officers observed that Whren was in possession of crack cocaine. The Court determined the officers did not violate the Fourth Amendment through an unreasonable search and seizure and that the officers were permitted to stop the vehicle after it committed a traffic violation and the subsequent search of the vehicle was permitted regardless of the pretext of the officers.

In June 2001 the Bureau of Justice Assistance, a component of the Office of Justice Programs of the United States Department of Justice, awarded a Northeastern research team a grant to create the web-based Racial Profiling Data Collection Resource Center. It now maintains a website designed to be a central clearinghouse for police agencies, legislators, community leaders, social scientists, legal researchers, and journalists to access information about current data collection efforts, legislation and model policies, police-community initiatives, and methodological tools that can be used to collect and analyze racial profiling data. The website contains information on the background of data collection, jurisdictions currently collecting data, community groups, legislation that is pending and enacted in states across the country, and has information on planning and implementing data collection procedures, training officers in to implement these systems, and analyzing and reporting the data and results.

Statutory law

In April 2010, Arizona enacted SB 1070, a law that would require law-enforcement officers to verify the citizenship of individuals they stop if they have reasonable suspicion that they may be in the United States illegally. The law states that "Any person who is arrested shall have the person's immigration status determined before the person is released". United States federal law requires that all immigrants who remain in the United States for more than 30 days register with the U.S. government. In addition, all immigrants age 18 and over are required to have their registration documents with them at all times. Arizona made it a misdemeanor crime for an illegal immigrant 14 years of age and older to be found without carrying these documents at all times.

According to SB 1070, law-enforcement officials may not consider "race, color, or national origin" in the enforcement of the law, except under the circumstances allowed under the United States and Arizona constitutions. In June 2012, the majority of SB 1070 was struck down by the United States Supreme Court, while the provision allowing for an immigration check on detained persons was upheld.

Some states contain "stop and identify" laws that allow officers to detain suspected persons and ask for identification, and if there is a failure to provide identification punitive measures can be taken by the officer. As of 2017, there are 24 states that have "stop and identify" statues; however, the criminal punishments and requirements to produce identification vary from state to state. Utah HB 497 requires residents to carry relevant identification at all times in order to prove resident status or immigration status; even so, police may still dismiss provided documents under suspicion of falsification and arrest or detain suspects.

In early 2001, a bill was introduced to Congress named "End Racial Profiling Act of 2001" but lost support in the wake of the September 11 attacks. The bill was re-introduced to Congress in 2010 but also failed to gain the support it needed. Several U.S. states now have reporting requirements for incidents of racial profiling. Texas, for example, requires all agencies to provide annual reports to its Law Enforcement Commission. The requirement began on September 1, 2001, when the State of Texas passed a law to require all law enforcement agencies in the state to begin collecting certain data in connection to traffic or pedestrian stops beginning on January 1, 2002. Based on that data, the law mandated law enforcement agencies to submit a report to the law enforcement agencies' governing body beginning March 1, 2003, and each year thereafter no later than March 1. The law is found in the Texas Code of Criminal Procedure beginning with Article 2.131.

Additionally, on January 1, 2011, all Texas law enforcement agencies began submitting annual reports to the Texas State Law Enforcement Officers Standards and Education Commission. The submitted reports can be accessed on the commission's website for public review.

In June 2003, the Department of Justice issued its Guidance Regarding the Use of Race by Federal Law Enforcement Agencies forbidding racial profiling by federal law enforcement officials.

Support

Supporters defend the practice of racial profiling by emphasizing the crime control model. They claim that the practice is both efficient and ideal due to utilizing the laws of probability in order to determine one's criminality. This system focuses on controlling crime with swift judgment, bestowing full discretion on police to handle what they perceive as a threat to society.

The use and support of racial profiling has surged in recent years, namely in North America due to heightened tension and awareness following the events of 9/11. As a result, the issue of profiling has created a debate that centers on the values of equality and self-defense. Supporters uphold the stance that sacrifices must be made in order to maintain national safety, even if it warrants differential treatment. According to a 2011 survey by Rasmussen Reports, a majority of Americans support profiling as necessary "in today's society".

In December 2010, Fernando Mateo, then president of the New York State Federation of Taxi Drivers, made pro-racial profiling remarks in the case of gun-shot taxi-cab driver: "You know sometimes it's good that we are racially profiled because the God's-honest truth is that 99 percent of the people that are robbing, stealing, killing these drivers are blacks and Hispanics." "Clearly everyone knows I'm not racist. I'm Hispanic and my father is black. ... My father is blacker than Al Sharpton." When confronted with accusations of racial profiling the police claim that they do not participate in it. They emphasize that numerous factors (such as race, interactions, and dress) are used to determine if a person is involved in criminal activity and that race is not a sole factor in the decision to detain or question an individual. They further claim that the job of policing is far more imperative than to concerns of minorities or interest groups claiming unfair targeting.

Proponents of racial profiling believe that inner city residents of Hispanic communities are subjected to racial profiling because of theories such as the "gang suppression model". The "gang suppression model" is believed by some to be the basis for increased policing, the theory being based on the idea that Latinos are violent and out of control and are therefore "in need of suppression". Based on research, the criminalization of a people can lead to abuses of power on behalf of law enforcement.

Criticism

Critics of racial profiling argue that the individual rights of a suspect are violated if race is used as a factor in that suspicion. Notably, civil liberties organizations such as the American Civil Liberties Union (ACLU) have labeled racial profiling as a form of discrimination, stating, "Discrimination based on race, ethnicity, religion, nationality or on any other particular identity undermines the basic human rights and freedoms to which every person is entitled."

Conversely, those in opposition of the police tactic employ the teachings of the due process model, arguing that minorities are not granted equal rights and are thus subject to unjust treatment. In addition, some argue that the singling out of individuals based on their ethnicity comes in violation of the Rule of Law, having voided all instance of neutrality. Those in opposition also make note of the role that the news media plays within the conflict. The general public internalizes much of its knowledge from the media, relying on sources to convey information of events that transpire outside of their immediate domain. In conjunction with this power, media outlets are aware of the public's intrigue with controversy and have been known to construct headlines that entail moral panic and negativity.

In the case of racial profiling drivers, the ethnic backgrounds of drivers stopped by traffic police in the U.S. suggests the possibility of biased policing against non-white drivers. Black drivers felt that they were being pulled over by law enforcement officers simply because of their skin color. However, some argue in favor of the "veil of darkness" hypothesis, which states that police are less likely to know the race of a driver before they make a stop at nighttime as opposed to in the daytime. Referring to the veil of darkness hypothesis, it is suggested that if the race distribution of drivers stopped during the day differs from that of drivers stopped at night, officers are engaging in racial profiling. For example, in one study done by Jeffrey Grogger and Greg Ridgeway, the veil of darkness hypothesis was used to determine whether or not racial profiling in traffic stops occurs in Oakland, California. The conductors found that there was little evidence of racial profiling in traffic stops made in Oakland.

Research through random sampling in the South Tucson, Arizona area has established that immigration authorities sometimes target the residents of barrios with the use of possibly discriminatory policing based on racial profiling. Author Mary Romero writes that immigration raids are often carried out at places of gathering and cultural expression such as grocery stores based on the fluency of language of a person (e.g. being bilingual especially in Spanish) and skin color of a person. She goes on to state that immigration raids are often conducted with a disregard for due process, and that these raids lead people from these communities to distrust law enforcement.

In a recent journal comparing the 1990s to the present, studies have established that when the community criticized police for targeting the black community during traffic stops it received more media coverage and toned down racial profiling. However, whenever there was a significant lack of media coverage or concern with racial profiling, the amount of arrests and traffic stops for the African-American community would significantly rise again.

New York Police Department

Suspicionless surveillance of Muslims

Between 2003 and 2014, the New York City Police Department (NYPD) operated the "Demographics Unit" (later renamed "Zone Assessment Unit") which mapped communities of 28 "ancestries of interest", including those of Muslims, Arabs, and Albanians. Plain-clothed detectives were sent to public places such as coffee shops, mosques and parks to observe and record the public sentiment, as well as map locations where potential terrorists could "blend in". In its 11 years of operation, however, the unit did not generate any information leading to a criminal charge. A series of publications by the Associated Press during 2011–12 gave rise to public pressure to close the unit, and it was finally disbanded in 2014. Racial profiling not only occurs on the streets but also in many institutions. Much like the book Famous all over Town where the author Danny Santiago mentions this type of racism throughout the novel. According to Jesper Ryberg's 2011 article "Racial Profiling And Criminal Justice" in the Journal of Ethics, "It is argued that, given the assumption that criminals are currently being punished too severely in Western countries, the apprehension of more criminals may not constitute a reason in favor of racial profiling at all." It has been stated in a scholarly journal that for over 30 years the use of racial and/or demographic profiling by local authorities and higher level law enforcement's continue to proceed. NYPD Street cops use racial profiling more often, due to the widespread patterns. They first frisk them to check whether they have enough evidence to be even arrested for the relevant crime. "As a practical matter, the stops display a measurable racial disparity: black and Hispanic people generally represent more than 85 percent of those stopped by the police, though their combined populations make up a small share of the city's racial composition." (Baker)

Stop-and-frisk

The NYPD has been subject to much criticism for its "stop-and-frisk" tactics. According to statistics on the NYPD's stop and frisk policies, collected by the Center for Constitutional Rights, 51% of the people stopped by the police were Black, 33% were Latino, and 9% were White, and only 2% of all stops resulted in contraband findings. Starting in 2013, use of racial profiling by the NYPD was drastically curtailed, as New York Mayor Bill de Blasio was campaigning for the office, and this policy has continued into his term. In June 2019, the independent Office of the Inspector General for the NYPD (OIG-NYPD), under New York City's Department of Investigation (DOI), released a report which found deficiencies in how NYPD tracked and investigated allegations of racial profiling and other types of biased policing against NYPD officers. The report concluded that NYPD had never substantiated any complaints of biased policing since it began tracking them in 2014.

Dealing with terrorism

The September 11, 2001 attacks on the World Trade Center and the Pentagon have led to targeting of some Muslims and Middle Easterners as potential terrorists and, according to some, are targeted by the national government through preventive measures similar to those practiced by local law enforcement. The national government has passed laws, such as the Patriot Act of 2001, to increase surveillance of potential threats to national security as a result of the events that occurred during 9/11. It is argued that the passage of these laws and provisions by the national government leads to justification of preventative methods, such as racial profiling, that has been controversial for racial profiling and leads to further minority distrust in the national government. One of the techniques used by the FBI to target Muslims was monitoring 100 mosques and business in Washington DC and threatened to deport Muslims who did not agree to serve as informers. The FBI denied to be taking part in blanket profiling and argued that they were trying to build trust within the Muslim community.

On September 14, 2001, three days after the September 11 attacks, an Indian American motorist and three family members were pulled over and ticketed by a Maryland state trooper because their car had broken taillights. The trooper interrogated the family, questioned them about their nationality, and asked for proof of citizenship. When the motorist said that their passports were at home, the officer allegedly stated, "You are lying. You are Arabs involved in terrorism." He ordered them out of the car, had them put their hands on the hood, and searched the car. When he discovered a knife in a toolbox, the officer handcuffed the driver and later reported that the driver "wore and carried a butcher knife, a dangerous, deadly weapon, concealed upon and about his person." The driver was detained for several hours but eventually released.

In December 2001, an American citizen of Middle Eastern descent named Assem Bayaa cleared all the security checks at Los Angeles airport and attempted to board a flight to New York City. Upon boarding, he was told that he made the passengers uncomfortable by being on board the plane and was asked to leave. Once off the plane, he wasn't searched or questioned any further and the only consolation he was given was a boarding pass for the next flight. He filed a lawsuit on the basis of discrimination against United Airlines. United Airlines filed a counter motion which was dismissed by a district judge on October 11, 2002. In June 2005, the ACLU announced a settlement between Bayaa and United Airlines who still disputed Bayaa's allegations, but noted that the settlement "was in the best interest of all".

The events of 9/11 also led to restrictions in immigration laws. The U.S. government imposed stricter immigration quotas to maintain national security at their national borders. In 2002, men over sixteen years old who entered the country from twenty-five Middle Eastern countries and North Korea were required to be photographed, fingerprinted, interviewed and have their financial information copied, and had to register again before leaving the country under the National Security Entry-Exit Registration System. No charges of terrorism resulted from the program, and it was deactivated in April 2011.

In 2006, 18 young men from the Greater Toronto Area were charged with conspiring to carry out a series of bombings and beheadings, resulting in a swell of media coverage. Two media narratives stood out with the former claiming that a militant subculture was forming within the Islamic community while the latter attributed the case to a bunch of deviant youth who had too much testosterone brewing. Eventually, it was shown that government officials had been tracking the group for some time, having supplied the youth with the necessary compounds to create explosives, prompting critics to discern whether the whole situation was a set-up. Throughout the case, many factors were put into question but none more than the Muslim community who faced much scrutiny and vitriol due to the build-up of negative headlines stemming from the media.

Studies

Statistical data demonstrates that although policing practices and policies vary widely across the United States, a large disparity between racial groups in regards to traffic stops and searches exists. Based on academic search, various studies have been conducted regarding the existence of racial profiling in traffic and pedestrian stops. For motor vehicle searches, academic research showed that the probability of a successful search is somewhat similar across races. Similar evidence has been found for pedestrian stops, with identical ratios of stops to arrests for different races.

One study concluded that the ratio of different races stopped by New York cops is about the same for all races tested, though other studies have found the rates of stops to be starkly racially differentiated.

In a study conducted in Cincinnati, Ohio, it was concluded that "Blacks were between three and five times more likely to (a) be asked if they were carrying drugs or weapons, (b) be asked to leave the vehicle, (c) be searched, (d) have a passenger searched, and (e) have the vehicle physically searched in a study conducted. This conclusion was based on the analysis of 313 randomly selected, traffic stop police tapes gathered from 2003 to 2004."

A 2001 study analyzing data from the Richmond, Virginia Police Department found that African Americans were disproportionately stopped compared to their proportion in the general population, but that they were not searched more often than Whites. The same study found that Whites were more likely than African Americans to be "the subjects of consent searches", and that Whites were more likely to be ticked or arrested than minorities, while minorities were more likely to be warned. A 2002 study found that African Americans were more likely to be watched and stopped by police when driving through white areas, despite the fact that African Americans' "hit rates" were lower in such areas. A 2004 study analyzing traffic stop data from suburban police department found that although minorities were disproportionately stopped, there is only a "very weak" relationship between race and police decisions to stop. Other studies have found that young black and Hispanic men were more likely to be issued citations, arrested, and to have force used against them by police, even after controlling for numerous other factors.

A 2005 study found that the percent of speeding drivers who were black (as identified by other drivers) on the New Jersey Turnpike was very similar to the percent of people pulled over for speeding who were black. A 2004 study looking at motor vehicle searches in Missouri found that unbiased policing did not explain the racial disparity in such searches. In contrast, a 2006 study examining data from Kansas concluded that its results were "consistent with the notion that police in Wichita choose their search strategies to maximize successful searches," and a 2009 study found that racial disparities in people being searched by the Washington state patrol was "likely not the result of intentional or purposeful discrimination." Another 2009 study found that police in Boston were more likely to search if their race was different from that of the suspect, in contrast to what would be expected if preference based discrimination was not occurring (which would be that police search decisions are independent of officer race).

A 2010 study found that black drivers were more likely to be searched at traffic stops in white neighborhoods, whereas white drivers were more likely to be searched by white officers at stops in black neighborhoods. A 2013 study found that police were more likely to issue warnings and citations, but not arrests, to young black men. A 2014 study analyzing data from Rhode Island found that blacks were more likely than whites to be frisked and, to a lesser extent, searched while driving; the study concluded that "Biased policing is largely the product of implicit stereotypes that are activated in contexts in which Black drivers appear out of place and in police actions that require quick decisions providing little time to monitor cognitions."

As far as the consequences, studies have shown a myriad of effects on people who have experienced racially discriminatory police stops. For example, one study found that perception of police discrimination is significantly related to adopting what Elijah Anderson called the "code of the street", and that this relationship is conditioned by neighborhood-level violence.

As a response to the shooting of Michael Brown in Ferguson on August 9, 2014, the Department of Justice recruited in September a team of criminal justice researchers to study racial bias in law enforcement in five cities and to subsequently devise strategic recommendations. In its March 2015 report on the Ferguson Police Department, the Department of Justice found that although only 67% of the population of Ferguson was black, 85% of people pulled over by police in Ferguson were black, as were 93 percent of those arrested and 90 percent of those given citations by the police.

A 2020 study in the journal Nature that analyzed 100 million traffic stops found that "black drivers were less likely to be stopped after sunset, when a ‘veil of darkness’ masks one's race, suggesting bias in stop decisions", "the bar for searching black and Hispanic drivers was lower than that for searching white drivers", and "legalization of recreational marijuana reduced the number of searches of white, black and Hispanic drivers—but the bar for searching black and Hispanic drivers was still lower than that for white drivers post-legalization". The authors concluded that "police stops and search decisions suffer from persistent racial bias and point to the value of policy interventions to mitigate these disparities".

A 2016 study found that shootings of police officers by black suspects increased racial profiling of black civilians (but no similar effect for white or Hispanic shooters on profiling white or Hispanic civilians) for a brief period in the immediate aftermath of the shooting.

Racial profiling in retail

Shopping forms one major avenue for racial profiling. General discrimination devalues the experience of shopping, arguably raising the costs and reducing the rewards derived from consumption for the individual. When a store's sales staff appears hesitant to serve black shoppers or suspects that they are prospective shoplifters, the act of shopping no longer becomes a form of leisure.

Racial profiling in retail was prominent enough in 2001 that psychology researchers such as Jerome D. Williams coined the term "shopping while black", which describes the experience of being denied service or given poor service because one is black. Commonly, "shopping while black" involves, but is not limited to, a black or non-white customer being followed around and/or closely monitored by a clerk or guard who suspects he or she may steal, based on the color of their skin. It can also involve being denied store access, being refused service, use of ethnic slurs, being searched, being asked for extra forms of identification, having purchases limited, being required to have a higher credit limit than other customers, being charged a higher price, or being asked more or more rigorous questions on applications. These negative shopping experiences can directly contribute to the decline of shopping in stores as individuals will come to prefer to shop online, avoiding interactions that are deemed degrading, embarrassing, and highly offensive.

Public opinion

Perceptions of race and safety

In a particular study, Higgins, Gabbidon, and Vito studied the relationship between public opinion on racial profiling in conjunction with their viewpoint of race relations and their perceived awareness of safety. It was found that race relations had a statistical correlation with the legitimacy of racial profiling. Specifically, results showed that those who believed that racial profiling was widespread and that racial tension would never be fixed were more likely to be opposed to racial profiling than those who did not believe racial profiling was as widespread or that racial tensions would be fixed eventually. On the other hand, in reference to the perception of safety, the research concluded that one's perception of safety had no influence on public opinion of racial profiling. Higgins, Gabbidon, and Vito acknowledge that this may not have been the case immediately after 9/11, but state that any support of racial profiling based on safety was "short-lived".

Influence of religious affiliation

One particular study focused on individuals who self-identified as religiously affiliated and their relationship with racial profiling. By using national survey data from October 2001, researcher Phillip H. Kim studied which individuals were more likely to support racial profiling. The research concludes that individuals that identified themselves as either Jewish, Catholic, or Protestant showed higher statistical numbers that illustrated support for racial profiling in comparison to individuals who identified themselves as non-religious.

Contexts of terrorism and crime

After the September 11, 2001 terrorist attacks on the United States, according to Johnson, a new debate concerning the appropriateness of racial profiling in the context of terrorism took place. According to Johnson, prior to the September 11, 2001 attacks the debate on racial profiling within the public targeted primarily African-Americans and Latino Americans with enforced policing on crime and drugs. The attacks on the World Trade Center and the Pentagon changed the focus of the racial profiling debate from street crime to terrorism. According to a June 4–5, 2002 FOX News/Opinion Dynamics Poll, 54% of Americans approved of using "racial profiling to screen Arab male airline passengers." A 2002 survey by Public Agenda tracked the attitudes toward the racial profiling of Blacks and people of Middle Eastern descent. In this survey, 52% of Americans said there was "no excuse" for law enforcement to look at African Americans with greater suspicion and scrutiny because they believe they are more likely to commit crimes, but only 21% said there was "no excuse" for extra scrutiny of Middle Eastern people.

However, using data from an internet survey based experiment performed in 2006 on a random sample of 574 adult university students, a study was conducted that examined public approval for the use of racial profiling to prevent crime and terrorism. It was found that approximately one third of students approved the use of racial profiling in general. Furthermore, it was found that students were equally likely to approve of the use of racial profiling to prevent crime as to prevent terrorism-33% and 35.8% respectively. The survey also asked respondents whether they would approve of racial profiling across different investigative contexts.

The data showed that 23.8% of people approved of law enforcement using racial profiling as a means to stop and question someone in a terrorism context while 29.9% of people approved of racial profiling in a crime context for the same situation. It was found that 25.3% of people approved of law enforcement using racial profiling as a means to search someone's bags or packages in a terrorism context while 33.5% of people approved of racial profiling in a crime context for the same situation. It was also found that 16.3% of people approved of law enforcement wire tapping a person's phone based upon racial profiling in the context of terrorism while 21.4% of people approved of racial profiling in a crime context for the same situation. It was also found that 14.6% of people approved of law enforcement searching someone's home based upon racial profiling in a terrorism context while 18.2% of people approved of racial profiling in a crime context for the same situation.

The study also found that white students were more likely to approve of racial profiling to prevent terrorism than nonwhite students. However, it was found that white students and nonwhite students held the same views about racial profiling in the context of crime. It was also found that foreign born students were less likely to approve of racial profiling to prevent terrorism than non-foreign born students while both groups shared similar views on racial profiling in the context of crime.

Thursday, August 18, 2022

Train

From Wikipedia, the free encyclopedia

In order from the top: An electric locomotive pulling a passenger train in Russia, a rack railway in Switzerland, diesel locomotives pulling a freight train in New Zealand, a monorail in Germany, a metro train in India, a restored steam locomotive in the U.S.

In rail transport, a train is a series of connected vehicles that run along a railway track and transport people or freight. The word train comes from the Old French trahiner, derived from the Latin trahere meaning "to pull, to draw". Trains are typically pulled or pushed by locomotives (often known simply as "engines"), though some are self-propelled, such as multiple units. Passengers and cargo are carried in railroad cars, also known as wagons. Trains are designed to a certain gauge, or distance between rails. Most trains operate on steel tracks with steel wheels, the low friction of which makes them more efficient than other forms of transport.

Trains have their roots in wagonways, which used railway tracks and were powered by horses or pulled by cables. Following the invention of the steam locomotive in the United Kingdom in 1804, trains rapidly spread around the world, allowing freight and passengers to move over land faster and cheaper than ever possible before. Rapid transit and trams were first built in the late 1800s to transport large numbers of people in and around cities. Beginning in the 1920s, and accelerating following World War II, diesel and electric locomotives replaced steam as the means of motive power. Following the development of cars, trucks, and extensive networks of highways which offered greater mobility, as well as faster airplanes, trains declined in importance and market share, and many rail lines were abandoned. The spread of buses led to the closure of many rapid transit and tram systems during this time as well.

Since the 1970s, governments, environmentalists, and train advocates have promoted increased use of trains due to their greater fuel efficiency and lower greenhouse gas emissions compared to other modes of land transport. High-speed rail, first built in the 1960s, has proven competitive with cars and planes over short to medium distances. Commuter rail has grown in importance since the 1970s as an alternative to congested highways and a means to promote development, as has light rail in the 21st century. Freight trains remain important for the transport of bulk commodities such as coal and grain, as well as being a means of reducing road traffic congestion by freight trucks.

While conventional trains operate on relatively flat tracks with two rails, a number of specialized trains exist which are significantly different in their mode of operation. Monorails operate on a single rail, while funiculars and rack railways are uniquely designed to traverse steep slopes. Experimental trains such as high speed maglevs, which use magnetic levitation to float above a guideway, are under development in the 2020s and offer higher speeds than even the fastest conventional trains. Development of trains which use alternative fuels such as natural gas and hydrogen is another 21st century development.

History

Early history

Stockton and Darlington special inaugural train 1825: six wagons of coal, directors coach, then people in wagons

Trains are an evolution of wheeled wagons running on stone wagonways, the earliest of which were built by Babylon circa 2,200 BCE. Starting in the 1500s, wagonways were introduced to haul material from mines; from the 1790s, stronger iron rails were introduced. Following early developments in the second half of the 1700s, in 1804 a steam locomotive built by British inventor Richard Trevithick powered the first ever steam train. Outside of coal mines, where fuel was readily available, steam locomotives remained untried until the opening of the Stockton and Darlington Railway in 1825. British engineer George Stephenson ran a steam locomotive named Locomotion No. 1 on this 40-kilometer (25-mile) long line, hauling over 400 passengers at up to 13 kilometers per hour (8 mph). The success of this locomotive, and Stephenson's Rocket in 1829, convinced many of the value in steam locomotives, and within a decade the stock market bubble known as "Railway Mania" started across the United Kingdom.

News of the success of steam locomotives quickly reached the United States, where the first steam railroad opened in 1829. American railroad pioneers soon started manufacturing their own locomotives, designed to handle the sharper curves and rougher track typical of the country's railroads.

The Union Pacific Big Boy locomotives represented the pinnacle of steam locomotive technology and power

The other nations of Europe also took note of British railroad developments, and most countries on the continent constructed and opened their first railroads in the 1830s and 1840s, following the first run of a steam train in France in late 1829. In the 1850s, trains continued to expand across Europe, with many influenced by or purchases of American locomotive designs. Other European countries pursued their own distinct designs. Around the world, steam locomotives grew larger and more powerful throughout the rest of the century as technology advanced.

Trains first entered service in South America, Africa, and Asia through construction by imperial powers, which starting in the 1840s built railroads to solidify control of their colonies and transport cargo for export. In Japan, which was never colonized, railroads first arrived in the early 1870s. By 1900, railroads were operating on every continent besides uninhabited Antarctica.

New technologies

Even as steam locomotive technology continued to improve, inventors in Germany started work on alternative methods for powering trains. Werner von Siemens built the first train powered by electricity in 1879, and went on to pioneer electric trams. Another German inventor, Rudolf Diesel, constructed the first diesel engine in the 1890s, though the potential of his invention to power trains was not realized until decades later. Between 1897 and 1903, tests of experimental electric locomotives on the Royal Prussian Military Railway in Germany demonstrated they were viable, setting speed records in excess of 160 kilometers per hour (100 mph).

The EMD FT set the stage for diesel locomotives to take over from steam.

Early gas powered "doodlebug" self-propelled railcars entered service on railroads in the first decade of the 1900s. Experimentation with diesel and gas power continued, culminating in the German "Flying Hamburger" in 1933, and the influential American EMD FT in 1939. These successful diesel locomotives showed that diesel power was superior to steam, due to lower costs, ease of maintenance, and better reliability. Meanwhile, Italy developed an extensive network of electric trains during the first decades of the 20th century, driven by that country's lack of significant coal reserves.

Dieselization and increased competition

World War II brought great destruction to existing railroads across Europe, Asia, and Africa. Following the war's conclusion in 1945, nations which had suffered extensive damage to their railroad networks took the opportunity provided by Marshall Plan funds (or economic assistance from the USSR and Comecon, for nations behind the Iron Curtain) and advances in technology to convert their trains to diesel or electric power. France, Russia, Switzerland, and Japan were leaders in adopting widespread electrified railroads, while other nations focused primarily on dieselization. By 1980, the majority of the world's steam locomotives had been retired, though they continued to be used in parts of Africa and Asia, along with a few holdouts in Europe and South America. China was the last country to fully dieselize, due to its abundant coal reserves; steam locomotives were used to haul mainline trains as late as 2005 in Inner Mongolia.

Trains began to face strong competition from automobiles and freight trucks in the 1930s, which greatly intensified following World War II. After the war, air transport also became a significant competitor for passenger trains. Large amounts of traffic shifted to these new forms of transportation, resulting in a widespread decline in train service, both freight and passenger. A new development in the 1960s was high-speed rail, which runs on dedicated rights of way and travels at speeds of 240 kilometers per hour (150 mph) or greater. The first high-speed rail service was the Japanese Shinkansen, which entered service in 1964. In the following decades, high speed rail networks were developed across much of Europe and Eastern Asia, providing fast and reliable service competitive with automobiles and airplanes. The first high-speed train in the Americas was Amtrak's Acela in the United States, which entered service in 2000.

China operates an extensive high speed rail network

To the present day

Towards the end of the 20th century, increased awareness of the benefits of trains for transport led to a revival in their use and importance. Freight trains are significantly more efficient than trucks, while also emitting far fewer greenhouse gas emissions per ton-mile; passenger trains are also far more energy efficient than other modes of transport. According to the International Energy Agency, "On average, rail requires 12 times less energy and emits 7-11 times less GHGs per passenger-km travelled than private vehicles and airplanes, making it the most efficient mode of motorised passenger transport. Aside from shipping, freight rail is the most energy-efficient and least carbon-intensive way to transport goods." As such, rail transport is considered an important part of achieving sustainable energy. Intermodal freight trains, carrying double-stack shipping containers, have since the 1970s generated significant business for railroads and gained market share from trucks. Increased use of commuter rail has also been promoted as a means of fighting traffic congestion on highways in urban areas.

Types and terminology

Trains can be sorted into types based on whether they haul passengers or freight (though mixed trains which haul both exist), by their weight (heavy rail for regular trains, light rail for lighter rapid transit systems), by their speed, and by what form of track they use. Conventional trains operate on two rails, but several other types of track systems are also in use around the world.

Terminology

The railway terminology that is used to describe a train varies between countries. The two primary systems of terminology are International Union of Railways terms in much of the world, and Association of American Railroads terms in North America.

Trains are typically defined as one or more locomotives coupled together, with or without cars. A collection of rail vehicles may also be called a consist. A set of vehicles that are permanently or semi-permanently coupled together (such as the Pioneer Zephyr) is called a trainset. The term rolling stock is used to describe any kind of train vehicle.

Components

Bogies

US-style railroad truck (bogie) with journal bearings
 

Bogies, also known in North America as trucks, support the wheels and axles of trains. Trucks range from just one axle to as many as four or more. Two-axle trucks are in the widest use worldwide, as they are better able to handle curves and support heavy loads than single axle trucks.

Couplers

Train vehicles are linked to one another by various systems of coupling. In much of Europe, India, and South America, trains primarily use buffers and chain couplers, while in the rest of the world knuckle couplers are used.

Brakes

Because trains are heavy, powerful brakes are needed to slow or stop trains, and because steel wheels on steel rails have relatively low friction, brakes must be distributed among as many wheels as possible. Early trains could only be stopped by manually applied hand brakes, requiring workers to ride on top of the cars and apply the brakes when the train went downhill. Hand brakes are still used to park cars and locomotives, but the predominant braking system for trains globally is air brakes, invented in 1869 by George Westinghouse. Air brakes are applied at once to the entire train using air hoses.

Warning devices

This cab car includes a horn (top), a bell (top right), headlights (above the door), classification lights (red lights on side), and ditch lights (white lights on side)

For safety and communication, trains are equipped with bells, horns, and lights. Steam locomotives typically use steam whistles rather than horns. Other types of lights may be installed on locomotives and cars, such as classification lights, Mars Lights, and ditch lights.

Cabs

Locomotives are in most cases equipped with cabs, also known as driving compartments, where a train driver controls the train's operation. They may also be installed on unpowered train cars known as cab or control cars, to allow for a train to operate with the locomotive at the rear.

Operations

Scheduling and dispatching

To prevent collisions or other accidents, trains are often scheduled, and almost always are under the control of train dispatchers. Historically, trains operated based on timetables; most passenger trains continue to operate based on fixed schedules, though freight trains may instead run on an as-needed basis, or when enough freight cars are available to justify running a train.

Maintenance

A number of maintenance vehicles at work on Metro-North Railroad

Simple repairs may be done while a train is parked on the tracks, but more extensive repairs will be done at a motive power depot. Similar facilities exist for repairing damaged or defective train cars. Maintenance of way trains are used to build and repair railroad tracks and other equipment.

Crew

Train drivers, also known as engineers, are responsible for operating trains. Conductors are in charge of trains and their cargo, and help passengers on passenger trains. Brakeman, also known as trainmen, were historically responsible for manually applying brakes, though the term is used today to refer to crew members who perform tasks such as operating switches, coupling and uncoupling train cars, and setting handbrakes on equipment. Steam locomotives require a fireman who is responsible for fueling and regulating the locomotive's fire and boiler. On passenger trains, other crew members assist passengers, such as chefs to prepare food, and service attendants to provide food and drinks to passengers. Other passenger train specific duties include passenger car attendants, who assist passengers with boarding and alighting from trains, answer questions, and keep train cars clean, and sleeping car attendants, who perform similar duties in sleeping cars.

Gauge

A narrow gauge train in Austria

Around the world, various track gauges are in use for trains. In most cases, trains can only operate on tracks that are of the same gauge; where different gauge trains meet, it is known as a break of gauge. Standard gauge, defined as 1,435 mm (4 ft 8.5 in) between the rails, is the most common gauge worldwide, though both broad-gauge and narrow-gauge trains are also in use. Trains also need to fit within the loading gauge profile to avoid fouling bridges and lineside infrastructure with this being a potential limiting factor on loads such as intermodal container types that may be carried.

Safety

Most derailments, such as this one in Switzerland, are minor and do not cause injuries or damage.

Train accidents sometimes occur, including derailments (when a train leaves the tracks) and train wrecks (collisions between trains). Accidents were more common in the early days of trains, when railway signal systems, centralized traffic control, and failsafe systems to prevent collisions were primitive or did not yet exist. To prevent accidents, systems such as automatic train stop are used; these are failsafe systems that apply the brakes on a train if it passes a red signal and enters an occupied block, or if any of the train's equipment malfunctions. More advanced safety systems, such as positive train control, can also automatically regulate train speed, preventing derailments from entering curves or switches too fast.

Modern trains have a very good safety record overall, comparable with air travel. In the United States between 2000 and 2009, train travel averaged 0.43 deaths per billion passenger miles traveled. While this was higher than that of air travel at 0.07 deaths per billion passenger miles, it was also far below the 7.28 deaths per billion passenger miles of car travel. In the 21st century, several derailments of oil trains caused fatalities, most notably the Canadian Lac-Mégantic rail disaster in 2013 which killed 47 people and leveled much of the town of Lac-Mégantic.

The vast majority of train-related fatalities, over 90 percent, are due to trespassing on railroad tracks, or collisions with road vehicles at level crossings. Organizations such as Operation Lifesaver have been formed to improve safety awareness at railroad crossings, and governments have also launched ad campaigns. Trains cannot stop quickly when at speed; even an emergency brake application may still require more than a mile of stopping distance. As such, emphasis is on educating motorists to yield to trains at crossings and avoid trespassing.

Motive power

Steam locomotives in Zimbabwe

Before steam

The first trains were rope-hauled, gravity powered or pulled by horses.

Steam

Steam locomotives work by using a boiler to heat water into steam, which powers the locomotive's pistons which are in turn connected to the wheels. In the mid 20th century, most steam locomotives were replaced by diesel or electric locomotives, which were cheaper, cleaner, and more reliable. Steam locomotives are still used in heritage railways operated in many countries for the leisure and enthusiast market.

Diesel

Diesel locomotives are powered with a diesel engine, which generates electricity to drive traction motors. This is known as a diesel–electric transmission, and is used on almost all diesels. Diesel power replaced steam for a variety of reasons: diesel locomotives were less complex, far more reliable, cheaper, cleaner, easier to maintain, and more fuel efficient.

Electric

Swiss Electric locomotive at Brig, Switzerland

Electric trains receive their current via overhead lines or through a third rail electric system, which is then used to power traction motors that drive the wheels. Electric traction offers a lower cost per mile of train operation but at a higher initial cost, which can only be justified on high traffic lines. Even though the cost per mile of construction is much higher, electric traction is cheaper to operate thanks to lower maintenance and purchase costs for locomotives and equipment. Compared to diesel locomotives, electric locomotives produce no direct emissions and accelerate much faster, making them better suited to passenger service, especially underground.

Other types

Various other types of train propulsion have been tried, some more successful than others.

In the mid 1900s, gas turbine locomotives were developed and successfully used, though most were retired due to high fuel costs and poor reliability.

In the 21st century, alternative fuels for locomotives are under development, due to increasing costs for diesel and a desire to reduce greenhouse gas emissions from trains. Examples include hydrail (trains powered by hydrogen fuel cells) and the use of compressed or liquefied natural gas.

Train cars

Various types of railroad cars in a classification yard in the United States

Train cars, also known as wagons, are unpowered rail vehicles which are typically pulled by locomotives. Many different types exist, specialized to handle various types of cargo. Some common types include boxcars (also known as covered goods wagons) that carry a wide variety of cargo, flatcars (also known as flat wagons) which have flat tops to hold cargo, hopper cars which carry bulk commodities, and tank cars which carry liquids and gases. Examples of more specialized types of train cars include bottle cars which hold molten steel, Schnabel cars which handle very heavy loads, and refrigerator cars which carry perishable goods.

Early train cars were small and light, much like early locomotives, but over time they have become larger as locomotives have become more powerful.

Passenger trains

Second-class compartment of a China Railways CRH1A-A train

A passenger train is used to transport people along a railroad line. These trains may consist of unpowered passenger railroad cars (also known as coaches or carriages) hauled by one or more locomotives, or may be self-propelled; self propelled passenger trains are known as multiple units or railcars. Passenger trains travel between stations or depots, where passengers may board and disembark. In most cases, passenger trains operate on a fixed schedule and have priority over freight trains.

Passenger trains can be divided into short and long distance services.

Long distance trains

Long distance passenger trains travel over hundreds or even thousands of miles between cities. The longest passenger train service in the world is Russia's Trans-Siberian Railway between Moscow and Vladivostok, a distance of 9,289 kilometers (5,772 mi). In general, long distance trains may take days to complete their journeys, and stop at dozens of stations along their routes. For many rural communities, they are the only form of public transportation available.

Short distance trains

Short distance or regional passenger trains have travel times measured in hours or even minutes, as opposed to days. They run more frequently than long distance trains, and are often used by commuters. Short distance passenger trains specifically designed for commuters are known as commuter rail.

High speed trains

The Japanese 0 Series Shinkansen pioneered high speed rail service

High speed trains are designed to be much faster than conventional trains, and typically run on their own separate tracks than other, slower trains. The first high speed train was the Japanese Shinkansen, which opened in 1964. In the 21st century, services such as the French TGV and German Intercity Express are competitive with airplanes in travel time over short to medium distances.

A subset of high speed trains are higher speed trains, which bridge the gap between conventional and high speed trains, and travel at speeds between the two. Examples include the Northeast Regional in the United States, the Gatimaan Express in India, and the KTM ETS in Malaysia.

Rapid transit trains

A number of types of trains are used to provide rapid transit to urban areas. These are distinct from traditional passenger trains in that they operate more frequently, typically do not share tracks with freight trains, and cover relatively short distances. Many different kinds of systems are in use globally.

Rapid transit trains that operate in tunnels below ground are known as subways, undergrounds, or metros. Elevated railways operate on viaducts or bridges above the ground, often on top of city streets. "Metro" may also refer to rapid transit that operates at ground level. In many systems, two or even all three of these types may exist on different portions of a network.

The New Orleans Streetcar System is one of the oldest in the world

Trams

Trams, also known in North America as streetcars, typically operate on or parallel to streets in cities, with frequent stops and a high frequency of service.

Light rail

Light rail is a catchall term for a variety of systems, which may include characteristics of trams, passenger trains, and rapid transit systems.

Specialized trains

There are a number of specialized trains which differ from the traditional definition of a train as a set of vehicles which travels on two rails.

Monorail

 

Monorails were developed to meet medium-demand traffic in urban transit, and consist of a train running on a single rail, typically elevated. Monorails represent a small proportion of the train systems in use worldwide. Almost all monorail trains use linear induction motors.

Maglev

To achieve much faster operation over 500 kilometers per hour (310 mph), maglev technology has been researched since the early 20th century. The technology uses magnets to levitate the train above the track, reducing friction and allowing higher speeds. The first commercial maglev train was an airport shuttle introduced in 1984 at Birmingham Airport in England.

The Shanghai Maglev Train, opened in 2003, is the fastest commercial train service of any kind, operating at speeds of up to 430 km/h (270 mph). Japan's L0 Series maglev holds the record for the world's fastest train ever, with a top speed of 603.0 kilometers per hour (374.7 mph). Maglev has not yet been used for inter-city mass transit routes, with only a few examples in use worldwide as of 2021.

Mine trains

Mine trains are operated in large mines and carry both workers and goods. They are usually powered by electricity, to prevent emissions which would pose a health risk to workers underground.

A preserved armored train

Militarized trains

While they have long been important in transporting troops and military equipment, trains have occasionally been used for direct combat. Armored trains have been used in a number of conflicts, as have railroad based artillery systems. Railcar-launched ICBM systems have also been used by nuclear weapon states.

Rack railway

For climbing steep slopes, specialized rack railroads are used. In order to avoid slipping, a rack and pinion system is used, with a toothed rail placed between the two regular rails, which meshes with a drive gear under the locomotive.

Funicular

Funiculars are also used to climb steep slopes, but instead of a rack use a rope, which is attached to two cars and a pulley. The two funicular cars travel up and down the slope on parallel sets of rails when the pulley is rotated. This design makes funiculars an efficient means of moving people and cargo up and down slopes. The earliest funicular railroad, the Reisszug, opened around 1500.

Freight trains

A Union Pacific freight train; high clearances enable double-stacked containers to be carried in well cars

Freight trains are dedicated to the transport of cargo (also known as goods), rather than people, and are made up of freight cars or wagons. Longer freight trains typically operate between classification yards, while local trains provide freight service between yards and individual loading and unloading points along railroad lines. Major origin or destination points for freight may instead be served by unit trains, which exclusively carry one type of cargo and move directly from the origin to the destination and back without any intermediate stops.

Under the right circumstances, transporting freight by train is less expensive than other modes of transport, and also more energy efficient than transporting freight by road. In the United States, railroads on average moved a ton of freight 702 kilometers (436 mi) per gallon of fuel, as of 2008, an efficiency four times greater than that of trucks. The Environmental and Energy Study Institute estimates that train transportation of freight is between 1.9 and 5.5 times more efficient than by truck, and also generates significantly less pollution. Rail freight is most economic when goods are being carried in bulk and over large distances, but it is less suited to short distances and small loads. With the advent of containerization, freight rail has become part of an intermodal freight network linked with trucking and container ships.

The main disadvantage of rail freight is its lack of flexibility and for this reason, rail has lost much of the freight business to road competition. Many governments are trying to encourage more freight back on to trains because of the community benefits that it would bring.

Cultural impact

Blue toy trains on wooden interlocking tracks on a red rug
A wooden toy train set from Swedish manufacturer Brio

From the dawn of railroading, trains have had a significant cultural impact worldwide. Fast train travel made possible in days or hours journeys which previously took months. Transport of both freight and passengers became far cheaper, allowing for networked economies over large areas. Towns and cities along railroad lines grew in importance, while those bypassed declined or even became ghost towns. Major cities such as Chicago became prominent because they were places where multiple train lines met. In the United States, the completion of the first transcontinental railroad played a major role in the settling of the western part of the nation by non-indigenous migrants and its incorporation into the rest of the country. The Russian Trans-Siberian Railway had a similar impact by connecting the vast country from east to west, and making travel across the frozen Siberia possible.

Trains have long had a major influence on music, art, and literature. Many films heavily involve or are set on trains. Toy train sets are commonly used by children, traditionally boys. Railfans are found around the world, along with hobbyists who create model train layouts. Train enthusiasts generally have a positive relationship with the railroad industry, though sometimes cause issues by trespassing.

Equality (mathematics)

From Wikipedia, the free encyclopedia https://en.wikipedia.org/wiki/Equality_...