112-825: The Ravenswood branch is a 4.7 mi (7.6 km) long branch of the Chicago "L" in Chicago , Illinois . Operated by the Chicago Transit Authority , it carries the Brown Line . As of February 2013, an average of 30,949 passengers are served each weekday on this branch. The Ravenswood Branch runs trains from Kimball to Belmont from 4:00 a.m. to 2:00 a.m. Monday thru Saturday and from 5:00 a.m. to 1:00 a.m. on Sundays/Holidays, and runs trains from Belmont to Kimball from 5:00 a.m. to 2:25 a.m. Monday thru Saturday and from 6:00 a.m. to 2:00 a.m. on Sundays/Holidays. The Ravenswood Branch serves
224-569: A 54% increase in weekday riders since 1992. On the other hand, weekday ridership on the South Side portion of the Green Line, which closed for two years for reconstruction from January 1994 to May 1996, was 50,400 in 1978 but only 13,000 in 2006. Boardings at the 95th/Dan Ryan stop on the Red Line, though still among the system's busiest at 11,100 riders per weekday as of February 2015, are less than half
336-403: A Democrat, was elected in 1955, in the era of machine politics . In 1956, the city conducted its last major expansion when it annexed the land under O'Hare airport, including a small portion of DuPage County. By the 1960s, white residents in several neighborhoods left the city for the suburban areas – in many American cities, a process known as white flight – as Blacks continued to move beyond
448-657: A flat fare of $ 2.50 for almost the entire system, the only exception being O'Hare International Airport on the Blue Line, at which passengers entering the station are charged a higher fare of $ 5.00 (passengers leaving the system at this station are not charged this higher fare). The higher fare is being charged for what the CTA considers "premium-level" service to O'Hare. Use of the Midway International Airport Station does not require this higher fare; it only requires
560-486: A heart attack soon after. Washington was succeeded by 6th ward alderperson Eugene Sawyer , who was elected by the Chicago City Council and served until a special election. Richard M. Daley , son of Richard J. Daley, was elected in 1989. His accomplishments included improvements to parks and creating incentives for sustainable development , as well as closing Meigs Field in the middle of the night and destroying
672-660: A model for the new field of social work . During the 1870s and 1880s, Chicago attained national stature as the leader in the movement to improve public health. City laws and later, state laws that upgraded standards for the medical profession and fought urban epidemics of cholera , smallpox , and yellow fever were both passed and enforced. These laws became templates for public health reform in other cities and states. The city established many large, well-landscaped municipal parks , which also included public sanitation facilities. The chief advocate for improving public health in Chicago
784-472: A new grade with the use of jackscrews for raising buildings. While elevating Chicago, and at first improving the city's health, the untreated sewage and industrial waste now flowed into the Chicago River , and subsequently into Lake Michigan , polluting the city's primary freshwater source. The city responded by tunneling two miles (3.2 km) out into Lake Michigan to newly built water cribs . In 1900,
896-634: A new station at Kimball, which opened in October 1974. On February 21, 1993, the CTA color coded its lines, and the Ravenswood Line was officially renamed the Brown Line. Ridership on the Ravenswood Branch increased from 8.1 million passengers per year in 1987 to 10.6 million in 1998, largely due to an increase in population of the neighborhoods served by the branch. As a result of the increased ridership, in
1008-567: A publisher's editor in New York or some other east coast city; in Chicago the same expression is routinely rendered 'L'." As used by CTA, the name is rendered as the capital letter 'L', in single quotation marks. "L" (with double quotation marks) was often used by CTA predecessors such as the Chicago Rapid Transit Company; however, the CTA uses single quotation marks (') on some printed materials and signs rather than double. In Chicago,
1120-784: A quarter-mile apart. The CTA introduced fare cards for the first time in 1997. Rail service to the O'Hare International Airport first opened in 1984 and to the Midway International Airport in 1993. That same year, the CTA renamed all of its rail lines; they are now identified by color. Later, after assuming control of the "L", the CTA introduced A/B skip-stop service. Under this service, trains were designated as either "A" or "B" trains, and stations were alternately designated as "A" stations or "B" stations, with heavily used stations designated as both – "AB". "A" trains would stop only at "A" and "AB" stations, and "B" trains would stop only at "B" and "AB" stations. Station signage carried
1232-517: A station reconstruction project to accommodate longer trains. Annual traffic on the Howard branch of the Red Line, which reached 38.7 million in 2010 and 40.9 million in 2011, has exceeded the 1927 prewar peak of 38.5 million. The section of the Blue Line between the Loop and Logan Square , which serves once-neglected but now bustling neighborhoods such as Wicker Park , Bucktown , and Palmer Square , has seen
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#17328482706331344-685: A steam locomotive pulling four wooden coaches, carrying more than a couple of dozen people, departed the 39th Street station and arrived at the Congress Street Terminal 14 minutes later, over tracks that are still in use by the Green Line. Over the next year, service was extended to 63rd Street and Stony Island Avenue , then the Transportation Building of the World's Columbian Exposition in Jackson Park . In 1893, trains began running on
1456-531: A third. By the 1950s, the service was used throughout the system. All lines used the A/B skip-stop service between the 1950s and the 1990s with the exception of the Evanston and Skokie lines, which were suburban-only lines and did not justify skip-stop service. On the lines with branches, skip-stop service sent all "A" trains to one branch and "B" trains to another branch. On what became the Blue Line, "A" trains were routed on
1568-545: Is currently focused on eliminating slow zones, modernizing the Red, Blue, and Purple lines, and improving "L" stations. In addition, CTA has studied numerous other proposals for expanded rail service and renovations, some of which may be implemented in the future. During the 2000s and 2010s, the CTA has completed several renovation and new construction projects. Pink Line service began on June 25, 2006, though it did not include any new tracks or stations. The Pink Line travels over what
1680-407: Is known to botanists as Allium tricoccum and known more commonly as "ramps". The first known reference to the site of the current city of Chicago as " Checagou " was by Robert de LaSalle around 1679 in a memoir. Henri Joutel , in his journal of 1688, noted that the eponymous wild "garlic" grew profusely in the area. According to his diary of late September 1687: ... when we arrived at
1792-474: Is the third-most populous city in the United States after New York City and Los Angeles . As the seat of Cook County , the second-most populous county in the U.S., Chicago is the center of the Chicago metropolitan area , often colloquially called "Chicagoland" and home to 9.6 million residents. Located on the shore of Lake Michigan , Chicago was incorporated as a city in 1837 near a portage between
1904-473: The Black Belt . While home loan discriminatory redlining against blacks continued, the real estate industry practiced what became known as blockbusting , completely changing the racial composition of whole neighborhoods. Structural changes in industry, such as globalization and job outsourcing, caused heavy job losses for lower-skilled workers. At its peak during the 1960s, some 250,000 workers were employed in
2016-646: The Calumet River in the industrial far South Side—flow either entirely or partially through the city. Chicago's history and economy are closely tied to its proximity to Lake Michigan. While the Chicago River historically handled much of the region's waterborne cargo, today's huge lake freighters use the city's Lake Calumet Harbor on the South Side. The lake also provides another positive effect: moderating Chicago's climate, making waterfront neighborhoods slightly warmer in winter and cooler in summer. When Chicago
2128-588: The Chicago Rapid Transit Company until 1924. He also bought three other Chicago electrified railroads, the Chicago North Shore and Milwaukee Railroad , Chicago Aurora and Elgin Railroad , and South Shore interurban lines, and ran the trains of the first two into downtown Chicago via the "L" tracks. This period of relative prosperity ended when Insull's empire collapsed in 1932, but later in
2240-688: The Great Lakes and the Mississippi River watershed . It grew rapidly in the mid-19th century. In 1871, the Great Chicago Fire destroyed several square miles and left more than 100,000 homeless, but Chicago's population continued to grow. Chicago made noted contributions to urban planning and architecture , such as the Chicago School , the development of the City Beautiful movement , and
2352-527: The Great Lakes to connect to the Mississippi River. A flourishing economy brought residents from rural communities and immigrants from abroad. Manufacturing and retail and finance sectors became dominant, influencing the American economy . The Chicago Board of Trade (established 1848) listed the first-ever standardized "exchange-traded" forward contracts, which were called futures contracts . In
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#17328482706332464-759: The Green Line , the Purple Line and the Douglas branch of the Blue Line (the modern-day Pink Line ) also had 24 hour service. In the years of private ownership, the South Side Elevated Railroad (now the South Side Elevated portion of the Green Line) provided 24 hour service, a major advantage when compared to Chicago's cable railroads which required daily overnight shutdown for cable maintenance. In 2015,
2576-525: The Jefferson Township , which now makes up most of Chicago's Northwest Side . The desire to join the city was driven by municipal services that the city could provide its residents. Chicago's flourishing economy attracted huge numbers of new immigrants from Europe and migrants from the Eastern United States . Of the total population in 1900, more than 77% were either foreign-born or born in
2688-565: The Lake Street Elevated Railroad and in 1895 on the Metropolitan West Side Elevated , which had lines to Douglas Park, Garfield Park (since replaced), Humboldt Park (since demolished), and Logan Square. The Metropolitan was the United States' first non-exhibition rapid transit system powered by electric traction motors , a technology whose practicality had been demonstrated in 1890 on the "intramural railway" at
2800-540: The Lakeview , Roscoe Village , North Center , Ravenswood , Lincoln Square , Ravenswood Manor and Albany Park neighborhoods of Chicago , Illinois . After its main line began service on May 31, 1900, the Northwestern Elevated Railroad focused on other expansion possibilities especially to the north-west of the city to serve the densely populated areas of Ravenswood . Despite financial difficulties,
2912-664: The Loop . In a 2005 poll, Chicago Tribune readers voted it one of the "seven wonders of Chicago", behind the lakefront and Wrigley Field , and ahead of Willis Tower (formerly the Sears Tower), the Water Tower , the University of Chicago , and the Museum of Science and Industry . The first "L", the Chicago and South Side Rapid Transit Railroad , began revenue service on June 6, 1892, when
3024-503: The Miami , Sauk and Meskwaki peoples in this region. The first known permanent settler in Chicago was trader Jean Baptiste Point du Sable . Du Sable was of African descent, perhaps born in the French colony of Saint-Domingue (Haiti), and established the settlement in the 1780s. He is commonly known as the "Founder of Chicago." In 1795, following the victory of the new United States in
3136-578: The New Negro Movement , in art, literature, and music. Continuing racial tensions and violence, such as the Chicago race riot of 1919 , also occurred. The ratification of the 18th amendment to the Constitution in 1919 made the production and sale (including exportation) of alcoholic beverages illegal in the United States. This ushered in the beginning of what is known as the gangster era, a time that roughly spans from 1919 until 1933 when Prohibition
3248-803: The Northwest Indian War , an area that was to be part of Chicago was turned over to the U.S. for a military post by native tribes in accordance with the Treaty of Greenville . In 1803, the U.S. Army constructed Fort Dearborn , which was destroyed during the War of 1812 in the Battle of Fort Dearborn by the Potawatomi before being later rebuilt. After the War of 1812, the Ottawa , Ojibwe , and Potawatomi tribes ceded additional land to
3360-453: The Sheridan station to Ravenswood Avenue, turning north on Ravenswood, before again turning west at Leland Avenue and terminating at Western Avenue. The conditions of the franchise that Northwestern Elevated received from the city required that the line follow a path between Roscoe Street and Newport Avenue from the main line to Ravenswood Avenue, rather than Irving Park road as in its proposal to
3472-411: The University of Chicago , Northwestern University , and the University of Illinois Chicago , among other institutions of learning . Professional sports in Chicago include all major professional leagues , including two Major League Baseball teams. The name Chicago is derived from a French rendering of the indigenous Miami–Illinois word shikaakwa for a wild relative of the onion ; it
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3584-663: The Washington and Jackson Parks. During World War I and the 1920s there was a major expansion in industry. The availability of jobs attracted African Americans from the Southern United States . Between 1910 and 1930, the African American population of Chicago increased dramatically, from 44,103 to 233,903. This Great Migration had an immense cultural impact, called the Chicago Black Renaissance , part of
3696-667: The "L", and of Chicago mass transit in general, had become too precarious to permit continued operation without subsidies, and the necessary steps were taken to enable a public takeover. In 1947, the Chicago Transit Authority (CTA) acquired the assets of the Chicago Rapid Transit Company and the Chicago Surface Lines , operator of the city's streetcars. Over the next few years CTA modernized the "L", replacing wooden cars with new steel ones and closing lightly used branch lines and stations , many of which had been spaced only
3808-611: The $ 2.50 regular fare. The higher charge at O'Hare has been the source of some controversy in recent years, because of the CTA's plan to eliminate the exemption from the premium fare for airport workers, Transportation Security Administration workers, and airline workers. After protests from those groups, the CTA extended the exemptions for six months. Since 1993, "L" lines have been officially identified by color, although older route names survive to some extent in CTA publications and popular usage to distinguish branches of longer lines. Stations are found throughout Chicago, as well as in
3920-443: The 1800s, Chicago became the nation's railroad hub, and by 1910 over 20 railroads operated passenger service out of six different downtown terminals. In 1883, Chicago's railway managers needed a general time convention, so they developed the standardized system of North American time zones . This system for telling time spread throughout the continent. In 1893, Chicago hosted the World's Columbian Exposition on former marshland at
4032-477: The 1850s, Chicago gained national political prominence as the home of Senator Stephen Douglas , the champion of the Kansas–Nebraska Act and the "popular sovereignty" approach to the issue of the spread of slavery. These issues also helped propel another Illinoisan, Abraham Lincoln , to the national stage. Lincoln was nominated in Chicago for U.S. president at the 1860 Republican National Convention , which
4144-473: The 1920s. After 1911, the "L" lines came under the control of Samuel Insull , president of the Chicago Edison electric utility (now Commonwealth Edison ), whose interest stemmed initially from the fact that the trains were the city's largest consumer of electricity. Insull instituted many improvements, including free transfers and through routing, although he did not formally combine the original firms into
4256-483: The 1990s, use of the A/B skip-stop system was only used during rush hour service. Another problem was that trains skipping stations to save time still could not pass the train that was directly ahead, so skipping stations was not advantageous in all regards. In 1993, the CTA began to eliminate skip-stop service when it switched the southern branches of the West-South and North-South Lines to improve rider efficiency, creating
4368-452: The 3200-series and 5000-series. The design and arrangement of seats were modified to improve ergonomics and increase leg room. Enhanced air conditioning will circulate air more efficiently during hot summer days. Laser sensors above the doors will count the number of passengers, allowing the CTA to track passenger volumes and change its schedules accordingly. State-owned manufacturer CRRC Sifang America (China Rail Rolling Stock Corporation) won
4480-747: The 57th mayor of Chicago. Chicago is located in northeastern Illinois on the southwestern shores of freshwater Lake Michigan. It is the principal city in the Chicago Metropolitan Area , situated in both the Midwestern United States and the Great Lakes region . The city rests on a continental divide at the site of the Chicago Portage, connecting the Mississippi River and the Great Lakes watersheds . In addition to it lying beside Lake Michigan, two rivers—the Chicago River in downtown and
4592-454: The 7000-series cars commenced in June 2019. This is the first time in more than 50 years CTA rail cars are manufactured in Chicago. Ten cars in the 7000-series began testing revenue service on April 21, 2021. The base order is for 400 cars and will be used to replace the 2600-series cars. If the CTA ordered the additional 446 cars, they would also replace the 3200-series cars. In May 2023,
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4704-501: The Brown Line in April 2008. The project was completed in December 2009, on time and on budget, with only minor punch list work remaining. The project's total cost was expected to be around $ 530 million. Chicago Chicago is the most populous city in the U.S. state of Illinois and in the Midwestern United States . With a population of 2,746,388, as of the 2020 census , it
4816-479: The CTA announced it has received $ 200 million funding from the Federal Transit Authority; this money will go towards the development of the 9000-series rail cars. The plan is to acquire up to 300 new train sets. Chicago's rapid-transit system is officially nicknamed the "L". This name for the CTA rail system applies to the whole system: its elevated, subway, at-grade, and open-cut segments. The use of
4928-460: The CTA introduced a new fare payment system called Ventra . Ventra enables passengers to purchase individual tickets, passes, or transit value online, by smart phone, or at participating retail locations. Ventra also works with CTA buses, Pace (suburban buses), and Metra (commuter rail). Payment by a smartphone app, the Ventra app, or by a contactless bankcard is possible. As of 2018 , the "L" uses
5040-455: The Chicago River were devastated; by 1933 over 50% of industrial jobs in the city had been lost, and unemployment rates amongst blacks and Mexicans in the city were over 40%. The Republican political machine in Chicago was utterly destroyed by the economic crisis, and every mayor since 1931 has been a Democrat . From 1928 to 1933, the city witnessed a tax revolt, and the city was unable to meet payroll or provide relief efforts. The fiscal crisis
5152-681: The Congress branch while "B" trains were sent to the Douglas branch. On the North-South Line, "A" trains went to the Englewood branch and "B" trains went to the Jackson Park branch. In both cases, individual stops were not skipped beyond the points where those branches diverged. As time went by, the time periods which employed skip-stop service gradually decreased, as the waits at "A" and "B" stations became increasingly longer during non-peak service. By
5264-588: The Milwaukee elevated into the Kennedy Expressway in 1970. As of 2014, Chicago "L" trains run over a total of 224.1 miles (360.7 km) of track. Ridership has been growing steadily after the CTA takeover despite declining mass transit usage nationwide, with an average of 594,000 riders boarding each weekday in 1960 and 759,866 in 2016 (or 47% of all CTA rides). Due to the Loop Flood in April 1992, ridership
5376-527: The Mississippi River. In 1871, the Great Chicago Fire destroyed an area about 4 miles (6.4 km) long and 1-mile (1.6 km) wide, a large section of the city at the time. Much of the city, including railroads and stockyards , survived intact, and from the ruins of the previous wooden structures arose more modern constructions of steel and stone. These set a precedent for worldwide construction. During its rebuilding period, Chicago constructed
5488-590: The Northwestern Elevated made it a priority and initially proposed an extension beyond Wilson at ground level in order to reduce construction costs. However, this proposal faced significant opposition which forced them to instead proposed an elevated line. In 1903, the Northwestern Elevated Railroad submitted a proposal to the City of Chicago for an elevated line to be built along Irving Park Road from
5600-414: The Ravenswood Branch was connected to the South Side Elevated Railroad 's Kenwood branch via the Loop . On August 1, 1949, the current routing of service on the Ravenswood Branch (known today as the Brown Line ) was established, and the Ravenswood station was closed. In September 1973, the CTA closed the Paulina station. However, the CTA reopened Paulina a month later. In October 1973, work began on
5712-437: The Red Line Dan Ryan branch reconstruction. The Brown Line Capacity Expansion Project enabled CTA to run eight-car trains on the Brown Line, and rebuilt stations to modern standards, including accessibility. Before the project, Brown Line platforms could only accommodate six-car trains, and increasing ridership led to uncomfortably crowded trains. After several years of construction, eight-car trains began to run at rush hour on
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#17328482706335824-407: The South arrived in the city to work in the steel mills, railroads, and shipping yards. On December 2, 1942, physicist Enrico Fermi conducted the world's first controlled nuclear reaction at the University of Chicago as part of the top-secret Manhattan Project . This led to the creation of the atomic bomb by the United States, which it used in World War II in 1945. Mayor Richard J. Daley ,
5936-553: The U.S. state of Illinois . Operated by the Chicago Transit Authority (CTA), it is the fourth-largest rapid transit system in the United States in terms of total route length, at 102.8 miles (165.4 km) long as of 2014, and the third-busiest rapid transit system in the United States after the New York City Subway and the Washington Metro . As of January 2024, the "L" had 1,480 rail cars operating across eight different routes on 224.1 miles of track. CTA trains make about 1,888 trips each day servicing 146 train stations. In 2023,
6048-506: The United States in the 1816 Treaty of St. Louis . The Potawatomi were forcibly removed from their land after the 1833 Treaty of Chicago and sent west of the Mississippi River as part of the federal policy of Indian removal . On August 12, 1833, the Town of Chicago was organized with a population of about 200. Within seven years it grew to more than 6,000 people. On June 15, 1835, the first public land sales began with Edmund Dick Taylor as Receiver of Public Monies. The City of Chicago
6160-668: The United States of foreign parentage. Germans , Irish , Poles , Swedes , and Czechs made up nearly two-thirds of the foreign-born population (by 1900, whites were 98.1% of the city's population). Labor conflicts followed the industrial boom and the rapid expansion of the labor pool, including the Haymarket affair on May 4, 1886, and in 1894 the Pullman Strike . Anarchist and socialist groups played prominent roles in creating very large and highly organized labor actions. Concern for social problems among Chicago's immigrant poor led Jane Addams and Ellen Gates Starr to found Hull House in 1889. Programs that were developed there became
6272-468: The World Fair that had been held in Chicago. Two years later the South Side "L" introduced multiple-unit control , in which the operator can control all the motorized cars in a train, not just the lead unit. Electrification and MU control remain standard features of most of the world's rapid transit systems. A drawback of early "L" service was that none of the lines entered the central business district. Instead trains dropped passengers at stub terminals on
6384-412: The city include the central business district, called the Loop , and the North, South , and West Sides . The three sides of the city are represented on the Flag of Chicago by three horizontal white stripes. The North Side is the most-densely-populated residential section of the city, and many high-rises are located on this side of the city along the lakefront. The South Side is the largest section of
6496-408: The city was affected by a series of tenant rent strikes , which lead to the formation of the Chicago Tenants Protective association, passage of the Kessenger tenant laws, and of a heat ordinance that legally required flats to be kept above 68 °F during winter months by landlords. Chicago was the first American city to have a homosexual-rights organization. The organization, formed in 1924,
6608-454: The city's streetcar system, obtained the necessary signatures through cash and guile—at one point he secured a franchise to build a mile-long "L" over Van Buren Street from Wabash Avenue to Halsted Street, extracting the requisite majority from the pliable owners on the western half of the route, then building tracks chiefly over the eastern half, where property owners had opposed him. Designed by noted bridge builder John Alexander Low Waddell ,
6720-415: The city's first African American woman mayor and its first openly LGBTQ mayor, was elected to succeed Emanuel as mayor in 2019. All three city-wide elective offices were held by women (and women of color) for the first time in Chicago history: in addition to Lightfoot, the city clerk was Anna Valencia and the city treasurer was Melissa Conyears-Ervin . On May 15, 2023, Brandon Johnson assumed office as
6832-424: The city's first female mayor, was elected. She was notable for temporarily moving into the crime-ridden Cabrini-Green housing project and for leading Chicago's school system out of a financial crisis. In 1983, Harold Washington became the first black mayor of Chicago. Washington's first term in office directed attention to poor and previously neglected minority neighborhoods. He was re‑elected in 1987 but died of
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#17328482706336944-404: The city. In 1906, work on the new line started, and on May 18, 1907 service began between Belmont and Western . The surface level track to Kimball entered service on December 14, 1907, along with three intermediate stations: Francisco , Kedzie and Rockwell . Service from Western to Kimball was initially solely a shuttle operation until March 1909. In 1913, Crosstown service was implemented and
7056-420: The close spacing of the support columns (a more extensive plan proposed replacing the entire elevated system with subways). The subways bypassed a number of tight curves and circuitous routings on the original elevated lines (Milwaukee trains, for example, originated on Chicago's northwest side but entered the Loop at the southwest corner), speeding service for many riders. By the 1940s, the financial condition of
7168-466: The completion of the order of the 2600-series cars, Budd changed its name to Transit America and ceased production of railcars. With 509 cars in operation, the 2600-series is the largest of the three series of "L" cars in operation. The cars were rebuilt by Alstom of Hornell, New York , from 1999 until 2002. The 3200-series , was built from 1992 until 1994 by Morrison-Knudsen of Hornell, New York. These cars have fluted, stainless steel sides similar to
7280-488: The contract, besting the other major competitor, Bombardier from Canada by $ 226 million. Concerns have been raised over possible malware, cyber attacks, and mass surveillance by the Chinese government. The computer and software components and the automatic train control system will be made by U.S. and Canadian firms. The cars are being built at a new CRRC Sifang America rail car manufacturing plant at 13535 South Torrence Avenue in Chicago's Hegewisch neighborhood. Production of
7392-407: The convention hall, with anti-war protesters, journalists and bystanders being beaten by police. Major construction projects, including the Sears Tower (now known as the Willis Tower , which in 1974 became the world's tallest building ), University of Illinois at Chicago , McCormick Place , and O'Hare International Airport , were undertaken during Richard J. Daley's tenure. In 1979, Jane Byrne ,
7504-413: The conversion of the O'Hare branch of the Blue Line and the Howard branch of the Red Line to all-stop service. The removal of skip-stop service resulted in some increases in travel times, and greatly increased ridership at former "A" and "B" stations due to increased train frequencies. Station signage highlighting the former skip-stop patterns would remain into the 2000s, when it was gradually replaced across
7616-402: The current Red and Green Lines. From this point, Green Line trains made all stops along the entire route, while Red Line trains stopped at all stations south of Harrison . The elimination of A/B skip-stop service continued with the opening of the all-stop Orange Line and the conversion of the Brown Line to all-stop service. In April 1995, the last of the A/B skip-stop system was eliminated with
7728-432: The decade the city with the help of the federal government accumulated sufficient funds to begin construction of two subway lines to supplement and, some hoped, permit eventual replacement of the Loop elevated; as early as the 1920s some city leaders wanted to replace the "ugly" elevated tracks and these plans advanced in the 1970s under mayors Richard J. Daley and Michael Bilandic until a public outcry against tearing down
7840-432: The district and forcing a shutdown of electrical power. The area was shut down for three days and some buildings did not reopen for weeks; losses were estimated at $ 1.95 billion. On February 23, 2011, Rahm Emanuel , a former White House Chief of Staff and member of the House of Representatives , won the mayoral election. Emanuel was sworn in as mayor on May 16, 2011, and won re-election in 2015. Lori Lightfoot ,
7952-486: The elevated tracks used a multiple close-rivet system to withstand the forces of the passing trains' kinetic energy. The Union Loop opened in 1897 and greatly increased the rapid transit system's convenience. Operation on the Yerkes-owned Northwestern Elevated , which built the North Side "L" lines, began three years later, essentially completing the elevated infrastructure in the urban core although extensions and branches continued to be constructed in outlying areas through
8064-526: The fair was technological innovation over the century since Chicago's founding. During World War II , the city of Chicago alone produced more steel than the United Kingdom every year from 1939 – 1945, and more than Nazi Germany from 1943 – 1945. The Great Migration, which had been on pause due to the Depression, resumed at an even faster pace in the second wave , as hundreds of thousands of blacks from
8176-611: The highest level since the station opened in 1969. The 2003 Chicago Central Area Plan proposed construction of a Green Line station at Cermak , between Chinatown and the McCormick Place convention center, in expectation of continued density growth in the vicinity. This station opened in 2015. Currently, the Red Line and the Blue Line provide 24-hour service, while all other lines operate from early morning to late night. Prior to 1998,
8288-610: The line opened. In discussing various stylings of "Loop" and "L" in Destination Loop: The Story of Rapid Transit Railroading in and around Chicago (1982), author Brian J. Cudahy quotes a passage from The Neon Wilderness (1947) by Chicago author Nelson Algren : "beneath the curved steel of the El, beneath the endless ties." Cudahy then comments, "Note that in the quotation above ... it says 'El' to mean 'elevated rapid transit railroad.' We trust that this usage can be ascribed to
8400-451: The lowest points are along the lake shore at 578 ft (176.2 m), while the highest point, at 672 ft (205 m), is the morainal ridge of Blue Island in the city's far south side. Lake Shore Drive runs adjacent to a large portion of Chicago's waterfront. Some of the parks along the waterfront include Lincoln Park , Grant Park , Burnham Park , and Jackson Park . There are 24 public beaches across 26 miles (42 km) of
8512-404: The nickname dates from the earliest days of the elevated railroads. Newspapers of the late 1880s referred to proposed elevated railroads in Chicago as " 'L' roads." The first route to be constructed, the Chicago and South Side Rapid Transit Railroad gained the nickname "Alley Elevated", or "Alley L" during its planning and construction, a term that was widely used by 1893, less than a year after
8624-551: The now-retired 2200-series . The 5000-series train cars are equipped with AC propulsion; interior security cameras; aisle-facing seating, which allow for greater passenger capacity; LED destination signs, interior readouts, and interior maps; GPS; glow-in-the-dark evacuation signs; operator-controlled ventilation systems; among other features. AC propulsion allows for smoother acceleration, lower operational costs, less wear and tear, and greater energy efficiency. The AC propulsion can take advantage of regenerative braking , meaning
8736-505: The peak volume in the 1980s. In 1976, three North Side "L" branches – what were then known as the Howard, Milwaukee, and Ravenswood lines − accounted for 42% of non-downtown boardings. Today (with the help of the Blue Line extension to O'Hare), they account for 58%. The North Side, which has historically been the highest density area of the city, reflects the Chicago building boom between 2000 and 2010, which has focused primarily on North Side neighborhoods and downtown. It may ease somewhat in
8848-614: The periphery due to a state law at the time requiring approval by neighboring property owners for tracks built over public streets, something not easily obtained downtown. This obstacle was overcome by the legendary traction magnate Charles Tyson Yerkes , who went on to play a pivotal role in the development of the London Underground , and who was immortalized by Theodore Dreiser as the ruthless schemer Frank Cowperwood in The Titan (1914) and other novels. Yerkes, who controlled much of
8960-463: The popular "L" began, led by Chicago Tribune columnist Paul Gapp , and architect Harry Weese . Instead, then new Mayor Jane Byrne protected the elevated lines and directed their rehabilitation. The State Street subway opened on October 17, 1943. The Dearborn Subway, on which work had been suspended during World War II , opened on February 25, 1951. The subways were constructed with a secondary purpose of serving as bomb shelters, as evidenced by
9072-551: The present location of Jackson Park . The Exposition drew 27.5 million visitors, and is considered the most influential world's fair in history. The University of Chicago , formerly at another location, moved to the same South Side location in 1892. The term "midway" for a fair or carnival referred originally to the Midway Plaisance , a strip of park land that still runs through the University of Chicago campus and connects
9184-593: The problem of sewage contamination was largely resolved when the city completed a major engineering feat. It reversed the flow of the Chicago River so that the water flowed away from Lake Michigan rather than into it. This project began with the construction and improvement of the Illinois and Michigan Canal, and was completed with the Chicago Sanitary and Ship Canal that connects to the Illinois River , which flows into
9296-462: The region is also the nation's railroad hub. The Chicago area has one of the highest gross domestic products (GDP) of any urban region in the world, generating $ 689 billion in 2018. Chicago's economy is diverse , with no single industry employing more than 14% of the workforce. Chicago is a major destination for tourism , including visitors to its cultural institutions , and Lake Michigan beaches . Chicago's culture has contributed much to
9408-584: The runways. After successfully running for re-election five times, and becoming Chicago's longest-serving mayor, Richard M. Daley declined to run for a seventh term. In 1992, a construction accident near the Kinzie Street Bridge produced a breach connecting the Chicago River to a tunnel below, which was part of an abandoned freight tunnel system extending throughout the downtown Loop district. The tunnels filled with 250 million US gallons (1,000,000 m ) of water, affecting buildings throughout
9520-596: The said place called "Chicagou" which, according to what we were able to learn of it, has taken this name because of the quantity of garlic which grows in the forests in this region. The city has had several nicknames throughout its history, such as the Windy City , Chi-Town, Second City, and City of the Big Shoulders. In the mid-18th century, the area was inhabited by the Potawatomi , an indigenous tribe who had succeeded
9632-504: The second-oldest rapid transit system in the Americas, after New York City's elevated lines . The "L" gained its name from "el" because large parts of the system run on elevated track. Portions of the network are in subway tunnels, at grade level, or in open cuts. The "L" has been credited for fostering the growth of Chicago's dense city core that is one of the city's distinguishing features. And according to urban engineer Christof Speiler,
9744-515: The station's skip-stop letter and was also color-coded by skip-stop type; "A" stations had red signage, "B" stations had green signage, and "AB" stations had blue signage. The system was designed to speed up lines by having trains skip stations while still allowing for frequent service at the heavily used "AB" stations. A/B skip-stop service debuted on the Lake Street Elevated in 1948, and the service proved effective as travel times were cut by
9856-570: The steel industry in Chicago, but the steel crisis of the 1970s and 1980s reduced this number to just 28,000 in 2015. In 1966, Martin Luther King Jr. and Albert Raby led the Chicago Freedom Movement , which culminated in agreements between Mayor Richard J. Daley and the movement leaders. Two years later, the city hosted the tumultuous 1968 Democratic National Convention , which featured physical confrontations both inside and outside
9968-453: The steel-framed skyscraper . Chicago is an international hub for finance, culture , commerce, industry, education, technology, telecommunications, and transportation . It has the largest and most diverse finance derivatives market in the world, generating 20% of all volume in commodities and financial futures alone. O'Hare International Airport is routinely ranked among the world's top six busiest airports by passenger traffic , and
10080-496: The suburbs of Forest Park , Oak Park , Evanston , Wilmette , Cicero , Rosemont , and Skokie . The CTA operates over 1,350 "L" cars, divided among four series, all of which are semi-permanently coupled into married pairs. All cars on the system utilize 600- volt direct current power delivered through a third rail . The 2600-series was built from 1981 until 1987 by the Budd Company of Philadelphia , Pennsylvania. After
10192-418: The summer of 2000, the CTA expanded service to the Loop until midnight and offered a shuttle route between Kimball and Belmont before and after the standard service so that passengers can reach the Red Line which runs 24/7 365 days a year. Chicago %22L%22 The Chicago " L " (short for " elevated ") is the rapid transit system serving the city of Chicago and some of its surrounding suburbs in
10304-560: The system due to deteriorated track, structure, and other problems. By October 2008, system-wide slow zones had been reduced to 9.1% and by January 2010, total slow zones were reduced to 6.3%. CTA's Slow Zone Elimination Project is an ongoing effort to restore track work to conditions where trains no longer have to reduce speeds through deteriorating areas. The Loop received track work in 2012–2013. The Purple Line in Evanston received track work and viaduct replacement in 2011–2013. The Green Line Ashland branch received track work in 2013, prior to
10416-413: The system had 117,447,000 rides, or about 416,200 per weekday in the third quarter of 2024. The "L" provides 24-hour service on the Red and Blue Lines, making Chicago, New York City, and Copenhagen the only three cities in the world to offer 24-hour train service on some of their lines throughout their respective city limits. The oldest sections of the Chicago "L" started operations in 1892, making it
10528-438: The system stands out in the United States because it continued to invest in services even through the post-World-War era growth of the expressway ; its general use of alleyways instead of streets throughout its history, and expressway mediums after the war, better knit the system into the city, and in pioneering ways. It consists of eight rapid transit lines laid out in a spoke–hub distribution paradigm focusing transit towards
10640-663: The system. The first air-conditioned cars were introduced in 1964. The last pre–World War II cars were retired in 1973. New lines were built in expressway medians, a technique implemented in Chicago and followed by other cities worldwide. The Congress branch, built in the median of the Eisenhower Expressway, replaced the Garfield Park "L" in 1958. The Dan Ryan branch, built in the median of the Dan Ryan Expressway, opened on September 28, 1969, followed by an extension of
10752-591: The term "subway" only applies to the State Street and Milwaukee–Dearborn subways and is not applied to the entire system as a whole, as in New York City where both the elevated and underground portions make up the New York City Subway . Like other large and aging rapid transit systems, the Chicago "L" faces problems of delays, breakdowns, and a multi-billion-dollar backlog of deferred maintenance. The CTA
10864-447: The train returns excess energy to the third rail as it slows down. With the DC propulsion of the previous series, they utilize dynamic braking which converts the excess kinetic energy into heat within a resistor bank. Next-generation train cars, the 7000-series , have been ordered and are beginning to enter service. Each 7000-series rail car will feature LEDs, 37 to 38 seats, and is a hybrid of
10976-551: The unemployed. In the spring of 1937 Republic Steel Works witnessed the Memorial Day massacre of 1937 in the neighborhood of East Side. In 1933, Chicago Mayor Anton Cermak was fatally wounded in Miami, Florida , during a failed assassination attempt on President-elect Franklin D. Roosevelt . In 1933 and 1934, the city celebrated its centennial by hosting the Century of Progress International Exposition World's Fair . The theme of
11088-625: The visual arts, literature , film, theater , comedy (especially improvisational comedy ), food , dance, and music (particularly jazz , blues , soul , hip-hop , gospel , and electronic dance music , including house music ). Chicago is home to the Chicago Symphony Orchestra and the Lyric Opera of Chicago , while the Art Institute of Chicago provides an influential visual arts museum and art school . The Chicago area also hosts
11200-510: The wake of the current high level of residential construction along the south lakefront. For example, ridership at the linked Roosevelt stops on the Green, Orange, and Red Lines, which serve the burgeoning South Loop neighborhood, has tripled since 1992, with an average of 8,000 boardings per weekday. Patronage at the Cermak- Chinatown stop on the Red Line, with 4,000 weekday boardings, is at
11312-644: The waterfront. Landfill extends into portions of the lake providing space for Navy Pier , Northerly Island , the Museum Campus , and large portions of the McCormick Place Convention Center. Most of the city's high-rise commercial and residential buildings are close to the waterfront. An informal name for the entire Chicago metropolitan area is "Chicagoland", which generally means the city and all its suburbs, though different organizations have slightly different definitions. Major sections of
11424-525: The world's first skyscraper in 1885, using steel-skeleton construction. The city grew significantly in size and population by incorporating many neighboring townships between 1851 and 1920, with the largest annexation happening in 1889, with five townships joining the city, including the Hyde Park Township , which now comprises most of the South Side of Chicago and the far southeast of Chicago, and
11536-431: Was John H. Rauch, M.D. Rauch established a plan for Chicago's park system in 1866. He created Lincoln Park by closing a cemetery filled with shallow graves, and in 1867, in response to an outbreak of cholera he helped establish a new Chicago Board of Health. Ten years later, he became the secretary and then the president of the first Illinois State Board of Health, which carried out most of its activities in Chicago. In
11648-560: Was at 418,000 that year because CTA was forced to suspend operation for several weeks in both the State and Dearborn subways, used by the most heavily traveled lines. Growing ridership has not been uniformly distributed. Use of North Side lines is heavy and continues to grow, while that of West Side and South Side lines tend to remain stable. Ridership on the North Side Brown Line, for instance, has increased 83% since 1979, necessitating
11760-467: Was called the Society for Human Rights . It produced the first American publication for homosexuals, Friendship and Freedom . Police and political pressure caused the organization to disband. The Great Depression brought unprecedented suffering to Chicago, in no small part due to the city's heavy reliance on heavy industry. Notably, industrial areas on the south side and neighborhoods lining both branches of
11872-410: Was demolished to make way for the Eisenhower Expressway. The new route, which serves 22 stations, offered more frequent service for riders on both the Congress and Douglas branches. Pink Line trains could be scheduled independently of Blue Line trains, and ran more frequently than the Douglas branch of the Blue Line did. In late 2007, trains were forced to operate at reduced speed over more than 22% of
11984-612: Was formerly a branch of the Blue Line from the 54th/Cermak terminal in Cicero to the Polk station in Chicago. Pink Line trains then proceed via the Paulina Connector to the Lake Street branch of the Green Line and then clockwise around the Loop elevated via Lake-Wabash-Van Buren-Wells. Douglas trains used the same route between April 4, 1954, and June 22, 1958, after the old Garfield Park "L" line
12096-462: Was founded in 1837, most of the early building was around the mouth of the Chicago River, as can be seen on a map of the city's original 58 blocks. The overall grade of the city's central, built-up areas is relatively consistent with the natural flatness of its overall natural geography, generally exhibiting only slight differentiation otherwise. The average land elevation is 579 ft (176.5 m) above sea level . While measurements vary somewhat,
12208-566: Was held in a purpose-built auditorium called the Wigwam . He defeated Douglas in the general election, and this set the stage for the American Civil War . To accommodate rapid population growth and demand for better sanitation, the city improved its infrastructure. In February 1856, Chicago's Common Council approved Chesbrough 's plan to build the United States' first comprehensive sewerage system. The project raised much of central Chicago to
12320-521: Was incorporated on Saturday, March 4, 1837, and for several decades was the world's fastest-growing city. As the site of the Chicago Portage , the city became an important transportation hub between the eastern and western United States. Chicago's first railway, Galena and Chicago Union Railroad , and the Illinois and Michigan Canal opened in 1848. The canal allowed steamboats and sailing ships on
12432-455: Was repealed. The 1920s saw gangsters , including Al Capone , Dion O'Banion , Bugs Moran and Tony Accardo battle law enforcement and each other on the streets of Chicago during the Prohibition era . Chicago was the location of the infamous St. Valentine's Day Massacre in 1929, when Al Capone sent men to gun down members of a rival gang, North Side, led by Bugs Moran. From 1920 to 1921,
12544-469: Was resolved by 1933, and at the same time, federal relief funding began to flow into Chicago. Chicago was also a hotbed of labor activism, with Unemployed Councils contributing heavily in the early depression to create solidarity for the poor and demand relief; these organizations were created by socialist and communist groups. By 1935 the Workers Alliance of America begun organizing the poor, workers,
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