Population
97-563: Chicago–Naperville–Elgin, IL–IN MSA Other Statistical Areas in the Chicago CSA The Chicago metropolitan area , also referred to as Chicagoland , is the largest metropolitan statistical area in the U.S. state of Illinois , and the Midwest , containing the City of Chicago along with its surrounding suburbs and satellite cities. Encompassing 10,286 square mi (28,120 km),
194-523: A central city from adjacent suburbs or commuter towns . Commuter rail systems can use locomotive-hauled trains or multiple units, using electric or diesel propulsion. Distance charges or zone pricing may be used. The term can refer to systems with a wide variety of different features and service frequencies, but is often used in contrast to rapid transit or light rail . Some services share similarities with both commuter rail and high-frequency rapid transit ; examples include New Jersey Transit in
291-563: A 200-mile (320 km) radius in every direction and reported on many different places in the area. The Tribune was the dominant newspaper in a vast area stretching to the west of the city, and that hinterland was closely tied to the metropolis by rail lines and commercial links. Today, the Chicago Tribune' s usage includes the city of Chicago, the rest of Cook County , eight nearby Illinois counties (Lake, McHenry , DuPage , Kane , Kendall , Grundy , Will , and Kankakee ), and
388-651: A city's central business district, and often share right-of-way with intercity or freight trains. Some services operate only during peak hours and others use fewer departures during off peak hours and weekends. Average speeds are high, often 50 km/h (30 mph) or higher. These higher speeds better serve the longer distances involved. Some services include express services which skip some stations in order to run faster and separate longer distance riders from short-distance ones. The general range of commuter trains' travel distance varies between 15 and 200 km (10 and 125 miles), but longer distances can be covered when
485-413: A headway rather than a published timetable and use dedicated tracks (underground or elevated), whereas commuter rail often shares tracks, technology and the legal framework within mainline railway systems, and uses rolling stocks with more seating and higher speed for comfort on longer city-suburban journeys. However, the classification as a metro or rapid rail can be difficult as both may typically cover
582-581: A metropolitan area exclusively, run on separate tracks in the centre, and often feature purpose-built rolling stock. The fact that the terminology is not standardised across countries (even across English-speaking countries) further complicates matters. This distinction is most easily made when there are two (or more) systems such as New York's subway and the LIRR and Metro-North Railroad , Paris' Métro and RER along with Transilien , Washington D.C.'s Metro along with its MARC and VRE , London's tube lines of
679-723: A population of over 8 million, which includes the following locations in Illinois: The city of Chicago lies in the Chicago Plain, a flat and broad area characterized by little topographical relief. The few low hills are sand ridges. North of the Chicago Plain, steep bluffs and ravines run alongside Lake Michigan. Along the southern shore of the Chicago Plain, sand dunes run alongside the lake. The tallest dunes reach up to near 200 feet (61 m) and are found in Indiana Dunes National Park . Surrounding
776-537: A regulation for public comment that would increase the minimum population needed for an urban area population to be a metropolitan statistical area to be increased from 50,000 to 100,000. It ultimately decided to keep the minimum at 50,000 for the 2020 cycle. On July 21, 2023, the Office of Management and Budget released revised delineations of the various CBSAs in the United States. The Census Bureau created
873-507: A tremendous rate since the early 1960s. Aurora, Elgin, Joliet, and Naperville are noteworthy for being four of the few boomburbs outside the Sun Belt , West Coast and Mountain States regions, and exurban Kendall County ranked as the fastest-growing county (among counties with a population greater than 10,000) in the United States between the years 2000 and 2007. Settlement patterns in
970-935: Is especially the case for lines operated by Korail , such as the Gyeongui-Jungang Line , the Gyeongchun Line , the Suin-Bundang Line , or the Gyeonggang Line . Even some lines not operated by Korail, such as the AREX Line, the Seohae Line or the Shinbundang Line mostly function as commuter rail. Lastly, even for the "numbered lines" (1–9) of the Seoul Metropolitan Subway which mostly travel in
1067-473: Is further subdivided into four metropolitan divisions. A breakdown of the county constituents and 2021 estimated populations of the four metropolitan divisions of the MSA are as follows: Chicago–Naperville–Elgin, IL–IN–WI Metropolitan Statistical Area (9,509,934) The OMB also defines a slightly larger region as a Combined Statistical Area (CSA). The Chicago–Naperville, IL–IN–WI Combined Statistical Area combines
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#17327694243571164-603: Is heavily used by commuters in the Greater Tokyo Area , who commute between 100 and 200 km (62 and 124 mi) by Shinkansen . To meet the demand of commuters, JR sells commuter discount passes. Before 2021, they operated 16-car bilevel E4 Series Shinkansen trains at rush hour, providing a capacity of 1,600 seats. Several lines in China, such as the Beijing–Tianjin Intercity Railway and
1261-964: Is home to the largest futures exchange in the world, the Chicago Mercantile Exchange . In March 2008, the Chicago Mercantile Exchange announced its acquisition of NYMEX Holdings Inc, the parent company of the New York Mercantile Exchange and Commodity Exchange. CME'S acquisition of NYMEX was completed in August 2008. A key piece of infrastructure for several generations was the Union Stock Yards of Chicago, which from 1865 until 1971 penned and slaughtered millions of cattle and hogs into standardized cuts of beef and pork . This prompted poet Carl Sandburg to describe Chicago as
1358-417: Is often a case of asset sweating , by using a single large combined fleet for intercity and regional services. Loco hauled services are usually run in push-pull formation, that is, the train can run with the locomotive at the "front" or "rear" of the train (pushing or pulling). Trains are often equipped with a control cab at the other end of the train from the locomotive, allowing the train operator to operate
1455-1963: Is one suburban rail called the Chittagong Circular Railway . Another suburban railway called the Dhaka Circular Railway is currently proposed. Karachi in Pakistan has a circular railway since 1969. Tehran Metro currently operates the Line 5 commuter line between Tehran and Karaj . Turkey has lines connecting Başkentray , İZBAN , Marmaray and Gaziray . Major metropolitan areas in most European countries are usually served by extensive commuter/suburban rail systems. Well-known examples include BG Voz in Belgrade (Serbia), S-Bahn in Germany, Austria and German-speaking areas of Switzerland, Proastiakos in Greece, RER in France and Belgium, Servizio ferroviario suburbano in Italy, Cercanías and Rodalies ( Catalonia ) in Spain, CP Urban Services in Portugal, Esko in Prague and Ostrava (Czech Republic), HÉV in Budapest (Hungary) and DART in Dublin (Ireland). London has multiple commuter rail routes: The Merseyrail network in Liverpool consists of two commuter rail routes powered by third rail, both of which branch out at one end. At
1552-470: Is operationally more like a typical metro system (frequent trains, an emphasis on standing passengers , short station spacings) than it is like commuter rail in other countries. Japanese commuter rail commonly interline with city center subway lines, with commuter rail trains continuing into the subway network, and then out onto different commuter rail systems on the other side of the city. Many Japanese commuter systems operate various stopping patterns to reduce
1649-552: Is part of the Great Lakes Megalopolis , containing an estimated 54 million people. The term " collar counties " is a colloquialism for the five counties (DuPage, Kane, Lake, McHenry , and Will) of Illinois that border Chicago's Cook County. After Cook County, they are also the next five most populous counties in the state. According to the Encyclopedia of Chicago , there is no specifically known origin of
1746-542: Is part of the Chicago metropolitan area. The interurban South Shore Line runs between Downtown Chicago and the northwest Indiana portion of the metropolitan area. In addition, Amtrak operates Union Station in Downtown Chicago as one of its largest rail hubs, with numerous lines radiating to and from the station. CTA bus routes serve the city proper, with some service into the suburbs. Pace bus routes serve
1843-526: Is still possible to tell them apart. Some operators, for example Thameslink , focus solely on commuter services. Others, such as Avanti West Coast and LNER , run solely intercity services. Others still, such as GWR and EMR , run a mixture of commuter, regional and intercity services. Some of these operators use different branding for different types of service (for example EMR brands its trains as either "InterCity", "Connect" for London commuter services, and "Regional") but even for those operators that do not,
1940-576: Is the West Side , which has a somewhat lower median income, but the western suburbs contain many affluent and upper-middle class areas. According to the 2000 Census, DuPage County as a whole had the highest median household income of any county in the Midwestern United States , although there are individual cities and towns in other surrounding counties in the metro that have even higher median incomes. According to 2022 estimates from
2037-644: Is the nation's oldest continuously operating junior college today. Later U of C president Robert Maynard Hutchins was central to the Great Books movement, and programs of dialogic education arising from that legacy can be found today at the U of C, at Shimer College , and in the City Colleges of Chicago and Oakton College in the Northwest suburbs. From 1947 until 1988, the Illinois portion of
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#17327694243572134-579: Is used in Australia (Sydney for example) to describe the regional trains operating beyond the boundaries of the suburban services, even though some of these "inter-city" services stop all stations similar to German regional services. In this regard, the German service delineations and naming conventions are clearer and better used for academic purposes. Sometimes high-speed rail can serve daily use of commuters. The Japanese Shinkansen high speed rail system
2231-426: Is widely used in many commuter rail trains to increase capacity in rush hours. Carriages are usually not organized to increase seating capacity (although in some trains at least one carriage would feature more doors to facilitate easier boarding and alighting and bench seats so that they can be folded up during rush hour to provide more standing room) even in the case of commuting longer than 50 km and commuters in
2328-641: The Chicago Tribune and the Chicago Sun-Times . Local television channels broadcasting to the Chicago market include WBBM-TV 2 (CBS), WMAQ-TV 5 (NBC), WLS-TV 7 (ABC), WGN-TV 9 (Ind), WTTW 11 (PBS), MeTV 23, WCIU 26 (CW), WFLD 32 (FOX), WCPX-TV 38 ( Ion ), WSNS-TV 44 (Telemundo), WPWR-TV 50 (MyNetworkTV), and WJYS-TV 62 (The Way). Radio stations serving the area include: WBBM (AM) , WBEZ , WGN (AM) , WMBI , WLS (AM) , and WSCR . Elementary and secondary education within
2425-489: The Fortune 500 such as McDonald's, United, and Blue Cross Blue Shield. With many companies moving to Chicagoland, and many current companies expanding, the area ranked as the nation's top metropolitan area for corporation relocations and expansions for nine consecutive years, the most consecutive years for any region in the country. The Chicago area is home to a number of the nation's leading research universities including
2522-474: The Asian American population also increased according to the 2020 Census. The metro area has a large number of White , Black , Latino , Asian , and Arab American residents, and also has Native American residents in the region, making the Chicago metropolitan area population truly diverse. The Chicago metropolitan area represents about 3 percent of the entire US population. Chicagoland has one of
2619-919: The Brisbane ( Queensland Rail 's City network ) and Perth ( Transperth ) systems in Australia, in some systems in Sweden, and on the Genoa-Casella line in Italy. Some countries and regions, including Finland , India, Pakistan, Russia , Brazil and Sri Lanka, as well as San Francisco ( BART ) in the US and Melbourne and Adelaide in Australia, use broad gauge track. Metro rail and rapid transit usually cover smaller inner-urban areas within 12 to 20 km (7 to 12 mi) of city centers, with shorter stop spacing, use rolling stocks with larger standing spaces, lower top speed and higher acceleration, designed for short-distance travel. They also run more frequently, to
2716-769: The Chennai MRTS , also covers over 300 stations and carries more than 2.5 million people daily to different areas in Chennai and its surroundings. Other commuter railways in India include the Hyderabad MMTS , Delhi Suburban Railway , Pune Suburban Railway and Lucknow-Kanpur Suburban Railway . In 2020, Government of India approved Bengaluru Suburban Railway to connect Bengaluru and its suburbs. It will be unique and first of its kind in India as it will have metro like facilities and rolling stock. In Bangladesh, there
2813-628: The Chicago Automobile Trade Association 's "Chicagoland and Northwest Indiana" advertising campaign are directed at the MSA itself, as well as LaSalle, Winnebago ( Rockford ), Boone , and Ogle counties in Illinois, in addition to Jasper , Newton , and La Porte counties in Indiana and Kenosha , Racine , and Walworth counties in Wisconsin, and even as far northeast as Berrien County, Michigan . The region
2910-779: The Chicago Transit Authority (CTA), Metra , and the South Shore Line . The CTA operates elevated and subway lines that run primarily throughout the city, Downtown Chicago , and into some suburbs. The CTA operates some of its rail lines 24 hours a day, every day of the year, nonstop service, making Chicago, New York City, and Copenhagen the only three cities in the world to offer some 24 hour rail service running nonstop, everyday throughout their city limits. The Metra commuter rail network runs numerous lines between Downtown Chicago and suburban/satellite cities, with one line stretching to Kenosha, Wisconsin , which
3007-528: The Greater Tokyo Area , Seoul metropolitan area , and Jabodetabek area have to stand in the train for more than an hour. Currently there are not many examples of commuter rail in Africa . Metrorail operates in the major cities of South Africa , and there are some commuter rail services in Algeria , Botswana , Kenya , Morocco , Egypt and Tunisia . In Algeria, SNTF operates commuter rail lines between
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3104-845: The Guangshen Railway have more frequent metro-like service. The two MTR lines which are owned and formerly operated by the Kowloon-Canton Railway Corporation ( East Rail line and Tuen Ma line which is integrated from the former West Rail line and Ma On Shan line in 2021), then the "KCR" ), and MTR's own Tung Chung line connect the new towns in New Territories and the city centre Kowloon together with frequent intervals, and some New Territories-bound trains terminate at intermediate stations, providing more frequent services in Kowloon and
3201-585: The Jakarta city center with surrounding cities and sub-urbans in Banten and West Java provinces, including Depok , Bogor , Tangerang , Serpong , Rangkasbitung , Bekasi and Cikarang . In July 2015, KRL Commuterline served more than 850,000 passengers per day, which is almost triple of the 2011 figures, but still less than 3.5% of all Jabodetabek commutes. Other commuter rail systems in Indonesia include
3298-1023: The Metro Surabaya Commuter Line , Commuter Line Bandung , KAI Commuter Yogyakarta–Solo Line , Kedung Sepur , and the Sri Lelawangsa . In the Philippines, the Philippine National Railways has two commuter rail systems currently operational; the PNR Metro Commuter Line in the Greater Manila Area and the PNR Bicol Commuter in the Bicol Region . A new commuter rail line in Metro Manila,
3395-614: The North–South Commuter Railway , is currently under construction. Its North section is set to be partially opened by 2021. In Malaysia, there are two commuter services operated by Keretapi Tanah Melayu . They are the KTM Komuter that serves Kuala Lumpur and the surrounding Klang Valley area , and the KTM Komuter Northern Sector that serves Greater Penang , Perak , Kedah and Perlis in
3492-548: The Office of Management and Budget (OMB), which is part of the Executive Office of the President , and are used by the U.S. Census Bureau and other U.S. federal government agencies for statistical purposes. The U.S. Office of Management and Budget defines a set of core based statistical areas (CBSAs) throughout the country, which are composed of counties and county equivalents . CBSAs are delineated on
3589-767: The Shanghai–Nanjing High-Speed Railway , serve a similar role with many more under construction or planned. In South Korea, some sections of the high-speed rail network are also heavily used by commuters, such as the section between Gwangmyeong Station and Seoul Station on the KTX network ( Gyeongbu HSR Line ), or the section between Dongtan Station and Suseo station on the SRT Line. The high-speed services linking Zürich , Bern and Basel in Switzerland (200 km/h (120 mph)) have brought
3686-424: The Underground and the Overground , Elizabeth line , Thameslink along with other commuter rail operators , Madrid's Metro and Cercanías , Barcelona's Metro and Rodalies , and Tokyo's subway and the JR lines along with various privately owned and operated commuter rail systems. Regional rail usually provides rail services between towns and cities, rather than purely linking major population hubs in
3783-417: The United States , including those in all 50 states and the national capital of Washington, D.C. are ranked, including: This sortable table lists the six metropolitan statistical areas (MSAs) of Puerto Rico including: Commuter rail Commuter rail or suburban rail is a passenger rail transport service that primarily operates within a metropolitan area , connecting commuters to
3880-417: The University of Chicago , Northwestern University , the University of Illinois at Chicago , DePaul University , Loyola University , and the Illinois Institute of Technology (IIT). The University of Chicago and Northwestern University are consistently ranked as two of the best universities in the world. There are many transportation options around the region. Chicagoland has three separate rail networks;
3977-426: The Yamanote Line , Keihin Tohoku Line , Chūō–Sōbu Line services arguably are more akin to rapid transit with frequent stops, simple stopping patterns (relative to other JR East lines) no branching services and largely serving the inner suburbs; other services along the Chūō Rapid Line , Sōbu Rapid Line / Yokosuka Line , Ueno–Tokyo Line , Shōnan–Shinjuku Line etc. are mid-distance services from suburban lines in
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4074-522: The "Hog Butcher for the World". The Chicago area, meanwhile, began to produce significant quantities of telecommunications gear, electronics, steel, crude oil derivatives, automobiles, and industrial capital goods. By the early 2000s, Illinois' economy had moved toward a dependence on high-value-added services, such as financial trading, higher education , logistics , and health care. In some cases, these services clustered around institutions that hearkened back to Illinois's earlier economies. For example,
4171-402: The 300 km/h (186 mph) Nuremberg–Ingolstadt high-speed railway . The regional trains Stockholm – Uppsala , Stockholm– Västerås , Stockholm– Eskilstuna and Gothenburg – Trollhättan in Sweden reach 200 km/h (120 mph) and have many daily commuters. In Great Britain , the HS1 domestic services between London and Ashford runs at a top speed of 225 km/h, and in peak hours
4268-448: The Central Business Districts (CBDs) of these three cities within 1 hour of each other. This has resulted in unexpectedly high demand for new commuter trips between the three cities and a corresponding increase in suburban rail passengers accessing the high-speed services at the main city-centre stations ( Hauptbahnhof ). The Regional-Express commuter service between Munich and Nuremberg in Germany runs at 200 km/h (120 mph) on
4365-404: The Chicago Combined Statistical Area at the time. Within the boundary of the 16-county Chicago Combined Statistical Area lies the Chicago urban area , as well as 26 smaller urban areas. Some of the urban areas below may partially cross into other statistical areas. Only those situated primarily within the Chicago combined statistical area are listed here. The Chicago metropolitan area is home to
4462-462: The Chicago Mercantile Exchange, a trading exchange for global derivatives , had begun its life as an agricultural futures market . In 2007, the area ranked first among U.S. metro areas in the number of new and expanded corporate facilities. It ranked third in 2008, behind the Houston–Sugar Land–Baytown and Dallas–Fort Worth metropolitan areas , and ranked second behind the New York metropolitan area in 2009. The Wall Street Journal summarized
4559-450: The Chicago Public Schools compared to those in some neighboring suburban schools. Historically, the Chicago metropolitan area has been at the center of a number of national educational movements, from the free-flowing Winnetka Plan to the regimented Taylorism of the Gary Plan . In higher education, University of Chicago founder William Rainey Harper was a leading early advocate of the junior college movement; Joliet Junior College
4656-450: The Chicago area's economy in November 2006 with the comment that "Chicago has survived by repeatedly reinventing itself." Chicago has been at the center of the United States' railroad network since the 19th century. Almost all Class I railroads serve the area, the most in North America. In addition to the Chicago Loop , the metro area is home to a few important subregional corridors of commercial activities. Among them are: Listing of
4753-430: The Chicago metro area was served by a single area code , 312, which abutted the 815 area code. In 1988 the 708 area code was introduced and the 312 area code became exclusive to the city of Chicago. Metropolitan statistical area In the United States , a metropolitan statistical area ( MSA ) is a geographical region with a relatively high population density at its core and close economic ties throughout
4850-465: The Chicago metropolitan area is provided by dozens of different school districts, of which by far the largest is the Chicago Public Schools with 400,000 students. Numerous private and religious school systems are also found in the region, as well as a growing number of charter schools . Racial inequalities in education in the region remain widespread, often breaking along district boundaries; for instance, educational prospects vary widely for students in
4947-400: The Chicago metropolitan area tend to follow those in the city proper: the northern and northwestern suburbs are generally affluent and upper-middle class , while the southern suburbs (sometimes known as Chicago Southland ) have somewhat lower median incomes and a cost of living, with the exception being the southwest suburbs which contain many upper-middle class areas. Another exception to this
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#17327694243575044-402: The East Rail Line share tracks with intercity trains to mainland China . The three KCR lines are integrated into the MTR network since 2008 and most passengers do not need to exit and re-enter the system through separate fare gates and purchase separate tickets to transfer between such lines and the rest of the network (the exceptions are between the Tuen Ma line's East Tsim Sha Tsui station and
5141-433: The Netherlands carry many commuters, while their equipment, range, and speeds are similar to those of commuter trains in some larger countries. The United Kingdom has a privatised rail system, with different routes and services covered by different private operators. The distinction between commuter and intercity rail is not as clear as it was before privatisation (when InterCity existed as a brand of its own), but usually it
5238-477: The Office of Management and Budget) and later renamed to standard metropolitan statistical areas (SMAs) in 1959. The modern metropolitan statistical area was created in 1983 amid a large increase in the number of eligible markets, which grew from 172 in 1950 to 288 in 1980; the core based statistical area (CBSA) was introduced in 2000 and defined in 2003 with a minimum population of 10,000 required for micropolitan areas and 50,000 for urban areas. The 387 MSAs in
5335-411: The Tsuen Wan line's Tsim Sha Tsui station . In Taiwan, the Western line in the Taipei - Taoyuan Metropolitan Area, Taichung Metropolitan Area and Tainan - Kaohsiung Metropolitan Area as well as the Neiwan - Liujia line in the Hsinchu Area are considered commuter rail. In South Korea, the Seoul Metropolitan Subway includes a total of 22 lines, and some of its lines are suburban lines. This
5432-403: The U.S. Census, poverty rates of the largest counties from least poverty to most are as follows: McHenry 4.0%, Dupage 6.7%, Will 6.9%, Kane 7.8%, Lake 8.0%, and Cook 13.6%. However, Cook County, which contains luxury high rises and expensive houses in sections of the city and expensive houses along the waterfront in the North Shore area, would also have the highest percentage of expensive homes in
5529-473: The U.S., German S-Bahn in some cities, the Réseau Express Régional (RER) in Paris, the S Lines in Milan, many Japanese commuter systems, the East Rail line in Hong Kong, and some Australasian suburban networks, such as Sydney Trains . Many commuter rail systems share tracks with other passenger services and freight . In North America, commuter rail sometimes refers only to systems that primarily operate during rush hour and offer little to no service for
5626-471: The United States and the fourth-largest metropolitan area in North America (after Mexico City, New York City, and Los Angeles), and the largest in the Great Lakes megalopolis . Its urban area is one of the 40 largest in the world . According to the 2020 Census , the metropolitan's population is approaching the 10 million mark. The metropolitan area has seen a substantial increase of Latin American residents on top of its already large Latino population, and
5723-465: The basis of a central contiguous area of relatively high population density, known as an urban area . The counties containing the core urban area are known as the "central counties" of the CBSA; these are defined as having at least 50% of their population living in urban areas of at least 10,000 in population. Additional surrounding counties, known as "outlying counties", can be included in the CBSA if these counties have strong social and economic ties to
5820-467: The capital Algiers and its southern and eastern suburbs. They also serve to connect Algiers ' main universities to each other. The Dar es Salaam commuter rail offers intracity services in Dar es Salaam , Tanzania. In Botswana, the ( Botswana Railways ) "BR Express" has a commuter train between Lobatse and Gaborone . In Japan, commuter rail systems have extensive network and frequent service and are heavily used. In many cases, Japanese commuter rail
5917-444: The central county or counties as measured by commuting and employment. Outlying counties are included in the CBSA if 25% of the workers living in the county work in the central county or counties, or if 25% of the employment in the county is held by workers who live in the central county or counties. Adjacent CBSAs are merged into a single CBSA when the central county or counties of one CBSA qualify as an outlying county or counties to
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#17327694243576014-404: The contours of a contiguous territory inhabited at urban density levels. It usually incorporates the population in a city, plus that in the contiguous urban, or built-up area. Chicagoland is an informal name for the Chicago metropolitan area. The term Chicagoland has no official definition, and the region is often considered to include areas beyond the corresponding MSA, as well as portions of
6111-402: The corporate headquarters of 57 Fortune 1000 companies, including AbbVie Inc. , Allstate , Kraft Heinz , McDonald's , Mondelez International , Motorola , United Airlines , Walgreens , and more . The Chicago area also headquarters a wide variety of global financial institutions including Citadel LLC , Discover Financial Services , Morningstar, Inc. , CNA Financial , and more. Chicago
6208-417: The dense parts of Seoul, some track sections extend far outside of the city, and operate large sections at ground level, such as on the Line 1 , Line 3 and Line 4 . In Busan, the Donghae Line , while part of the Busan Metro system, mostly functions as a commuter rail line. In Indonesia , the KRL Commuterline is the largest commuter rail system in the country, serving the Greater Jakarta . It connects
6305-406: The following core-based statistical areas , listed with their 2021 estimated populations. The combined statistical area as a whole had a population of 9,806,184 as of 2022. The Chicago urban agglomeration , according to the United Nations World Urbanization Prospects report (2023 revision), lists a population of 8,937,000. The term "urban agglomeration" refers to the population contained within
6402-416: The former BR 's Regional Railways , France's TER ( Transport express régional ), Germany's Regionalexpress and Regionalbahn , and South Korea's Tonggeun and Mugunghwa-ho services. In some European countries, the distinction between commuter trains and long-distance/intercity trains is subtle, due to the relatively short distances involved. For example, so-called " intercity " trains in Belgium and
6499-522: The greater CSA. Colonel Robert R. McCormick , editor and publisher of the Chicago Tribune , usually gets credit for placing the term in common use. McCormick's conception of Chicagoland stretched all the way to nearby parts of four states (Indiana, Wisconsin , Michigan , and Iowa ). The first usage was in the Tribune' s July 27, 1926, front page headline, "Chicagoland's Shrines: A Tour of Discoveries", for an article by reporter James O'Donnell Bennett . He stated that Chicagoland comprised everything in
6596-434: The land is covered by the tree and shrub canopy, made up of about 157,142,000 trees. The five most common tree species are buckthorn , green ash , boxelder , black cherry , and American elm . These resources perform important functions in carbon storage, water recycling, and energy saving. As of 2022, the metropolitan area had a population of 9,442,159. The population density was 1,312.3 per square mile. The racial makeup
6693-408: The low plain are bands of moraines in the south and west suburbs. These areas are higher and hillier than the Chicago Plain. A continental divide , separating the Mississippi River watershed from that of the Great Lakes and Saint Lawrence River , runs through the Chicago area. A 2012 survey of the urban trees and forests in the seven county Illinois section of the Chicago area found that 21% of
6790-429: The metropolitan area includes the city of Chicago, its suburbs and hinterland , that span 13 counties across northeast Illinois and northwest Indiana . The MSA had a 2020 census population of 9,618,502 and the combined statistical area, which spans 19 counties and additionally extends into southeast Wisconsin , had a population of nearly 10 million people. The Chicago area is the third-largest metropolitan area in
6887-406: The metropolitan district for the 1910 census as a standardized classification for large urban centers and their surrounding areas. The original threshold for a metropolitan district was 200,000, but was lowered to 100,000 in 1930 and 50,000 in 1940. The metropolitan districts were replaced by standard metropolitan areas (SMAs) in the 1950 census , which were defined by the Bureau of the Budget (now
6984-973: The northern region of Peninsular Malaysia. In Thailand, the Greater Bangkok Commuter rail and the Airport Rail Link serve the Bangkok Metropolitan Region . The SRT Red Lines , a new commuter line in Bangkok, started construction in 2009. It opened in 2021. Another commuter rail system in Southeast Asia is the Yangon Circular Railway in Myanmar . In India, commuter rail systems are present in major cities and form an important part of people's daily lives. Mumbai Suburban Railway ,
7081-1017: The number expected to rise even higher upon full completion of the Acharnes Railway Center . Eskişehir-Ankara and Konya-Ankara high speed train routes serve as high speed commuter trains in Turkey. Commuter/suburban trains are usually optimized for maximum passenger volume, in most cases without sacrificing too much comfort and luggage space, though they seldom have all the amenities of long-distance trains. Cars may be single- or double-level , and aim to provide seating for all. Compared to intercity trains, they have less space, fewer amenities and limited baggage areas. Commuter rail trains are usually composed of multiple units , which are self-propelled, bidirectional, articulated passenger rail cars with driving motors on each (or every other) bogie . Depending on local circumstances and tradition they may be powered either by diesel engines located below
7178-538: The number of their residents employed within Cook County, they met Census criteria to be added to the MSA. The Chicago MSA, now defined by the U.S. Office of Management and Budget (OMB) as the Chicago–Naperville–Elgin, IL–IN–WI Metropolitan Statistical Area , is the third-largest MSA by population in the United States. The 2022 census estimate for the population of the MSA was 9,441,957. The Chicago MSA
7275-533: The oldest suburban rail system in Asia, carries more than 7.24 million commuters on a daily basis which constitutes more than half of the total daily passenger capacity of the Indian Railways itself. Kolkata Suburban Railway , one of the largest suburban railway networks in the world, consists of more than 450 stations and carries more than 3.5 million commuters per day. The Chennai Suburban Railway along with
7372-793: The other CBSAs. One or more CBSAs may be grouped together or combined to form a larger statistical entity known as a combined statistical area (CSA) when the employment interchange measure (EIM) reaches 15% or more. CBSAs are subdivided into MSAs (formed around urban areas of at least 50,000 in population) and micropolitan statistical areas (μSAs), which are CBSAs built around an urban area of at least 10,000 in population but less than 50,000 in population. Some metropolitan areas may include multiple cities below 50,000 people, but combined have over 50,000 people. Previous terms that are no longer used to describe these regions include "standard metropolitan statistical area" (SMSA) and "primary metropolitan statistical area" (PMSA). On January 19, 2021, OMB submitted
7469-700: The outer reaches of Greater Tokyo through operating into these lines to form a high frequency corridor though central Tokyo. Other commuter rail routes in Japan include: Commuter rail systems have been inaugurated in several cities in China such as Beijing , Shanghai , Zhengzhou , Wuhan , Changsha and the Pearl River Delta . With plans for large systems in northeastern Zhejiang , Jingjinji , and Yangtze River Delta areas. The level of service varies considerably from line to line ranging high to near high speeds. More developed and established lines such as
7566-423: The passenger compartment ( diesel multiple units ) or by electricity picked up from third rails or overhead lines ( electric multiple units ). Multiple units are almost invariably equipped with control cabs at both ends, which is why such units are so frequently used to provide commuter services, due to the associated short turn-around time. Locomotive hauled services are used in some countries or locations. This
7663-464: The phrase, but it has been commonly used among policy makers, urban planners, and in the media. However, it also notes that as growth has spread beyond these counties, it may have lost some of its usefulness. Chicago Metropolitan Agency for Planning (CMAP) is an Illinois state agency responsible for transportation infrastructure, land use, and long-term economic development planning for the areas under its jurisdiction within Illinois. The planning area has
7760-563: The professional sports teams in the Chicago metropolitan area Major league professional teams: Other professional teams: The Chicagoland Speedway oval track has hosted NASCAR Cup Series and IndyCar Series races. The Chicago Marathon is one of the World Marathon Majors . The Western Open and BMW Championship are PGA Tour tournaments that have been held primarily at golf courses near Chicago. NCAA Division I College Sports Teams: The two main newspapers are
7857-445: The region. In an in-depth historical analysis, Keating (2004, 2005) examined the origins of 233 settlements that by 1900 had become suburbs or city neighborhoods of the Chicago metropolitan area. The settlements began as farm centers (41%), industrial towns (30%), residential railroad suburbs (15%), and recreational/institutional centers (13%). Although relations between the different settlement types were at times contentious, there also
7954-452: The region. Such regions are not legally incorporated as a city or town would be and are not legal administrative divisions like counties or separate entities such as states . As a result, sometimes the precise definition of a given metropolitan area will vary between sources. The statistical criteria for a standard metropolitan area were defined in 1949 and redefined as a metropolitan statistical area in 1983. Due to suburbanization,
8051-552: The rest of the day, with regional rail being used to refer to systems that offer all-day service. Most commuter (or suburban) trains are built to main line rail standards, differing from light rail or rapid transit (metro rail) systems by: Compared to rapid transit (or metro rail), commuter/suburban rail often has lower frequency , following a schedule rather than fixed intervals, and fewer stations spaced further apart. They primarily serve lower density suburban areas (non inner-city), generally only having one or two stops in
8148-488: The same right-of-way can drastically reduce system construction costs. However, frequently they are built with dedicated tracks within that right-of-way to prevent delays, especially where service densities have converged in the inner parts of the network. Most such trains run on the local standard gauge track. Some systems may run on a narrower or broader gauge. Examples of narrow gauge systems are found in Japan, Indonesia , Malaysia , Thailand , Taiwan, Switzerland, in
8245-613: The suburbs, with some service into the city. In addition, numerous CTA bus routes operate 24 hours a day, nonstop. The Chicago metropolitan statistical area (MSA) was originally designated by the United States Census Bureau in 1950. It comprised the Illinois counties of Cook, DuPage, Kane, Lake and Will, along with Lake County in Indiana . As surrounding counties saw an increase in their population densities and
8342-461: The towns closer to Kowloon. They use rolling stocks with a faster maximum speed and have longer stop spacing compared to other lines which only run in the inner urban area, but in order to maximise capacity and throughput, these rolling stocks have longitudinal seatings, 5 pairs of doors in each carriage with large standing spaces like the urban lines, and run as frequent as well. Most of the sections of these four lines are overground and some sections of
8439-515: The train from either end. The motive power for locomotive-hauled commuter trains may be either electric or diesel–electric , although some countries, such as Germany and some of the former Soviet-bloc countries, also use diesel–hydraulic locomotives. In the US and some other countries, a three-and-two seat plan is used. Middle seats on these trains are often less popular because passengers feel crowded and uncomfortable. In Japan, South Korea and Indonesia, longitudinal (sideways window-lining) seating
8536-553: The trains can be full with commuters standing. The Athens Suburban Railway in Greece consists of five lines, 4 of which are electrified. The Kiato – Piraeus line and the Aigio – Airport lines reach speeds of up to 180 km/h (112 mph). The Athens – Chalcis line is also expected to attain speeds of up to 200 km/h (124 mph) upon upgrading of the SKA–Oinoi railway sector. These lines also have many daily commuters, with
8633-521: The trains run between two or several cities (e.g. S-Bahn in the Ruhr area of Germany). Distances between stations may vary, but are usually much longer than those of urban rail systems. In city centres the train either has a terminal station or passes through the city centre with notably fewer station stops than those of urban rail systems. Toilets are often available on-board trains and in stations. Their ability to coexist with freight or intercity services in
8730-469: The travel time to distant locations, often using station passing loops instead of dedicated express tracks. It is notable that the larger Japanese commuter rail systems are owned and operated by for-profit private railway companies, without public subsidy. East Japan Railway Company operates a large suburban train network in Tokyo with various lines connecting the suburban areas to the city center. While
8827-473: The two Indiana counties of Lake and Porter . Illinois Department of Tourism literature uses Chicagoland for suburbs in Cook, Lake, DuPage, Kane, and Will counties, treating the city separately. The Chicagoland Chamber of Commerce defines it as all of Cook, DuPage, Kane, Lake, McHenry, and Will counties. In addition, company marketing programs such as Construction Data Company's "Chicago and Vicinity" region and
8924-574: The type of train, amenities offered, and stopping pattern, usually tell the services apart. Russian commuter trains , on the other hand, frequently cover areas larger than Belgium itself, although these are still short distances by Russian standards. They have a different ticketing system from long-distance trains, and in major cities they often operate from a separate section of the train station. Some consider "inter-city" service to be that which operates as an express service between two main city stations, bypassing intermediate stations. However, this term
9021-546: The typical metropolitan area is polycentric rather than being centered around a large historic core city such as New York City or Chicago . Some metropolitan areas include more than one large historic core city; examples include the Dallas–Fort Worth metroplex , Virginia Beach–Norfolk–Newport News (Hampton Roads) , Riverside–San Bernardino (Inland Empire) , and Minneapolis–Saint Paul (Twin Cities) . MSAs are defined by
9118-470: The way inter-city rail does. Regional rail operates outside major cities. Unlike Inter-city, it stops at most or all stations between cities. It provides a service between smaller communities along the line that are often byproducts of ribbon developments , and also connects with long-distance services at interchange stations located at junctions, terminals, or larger towns along the line. Alternative names are "local train" or "stopping train". Examples include
9215-433: The world's largest and most diversified economies. With more than six million full and part-time employees, the Chicago metropolitan area is a key factor of the Illinois economy, as the state has an annual GDP of over $ 1 trillion. The Chicago metropolitan area generated an annual gross regional product (GRP) of approximately $ 700 billion in 2018. The region is home to more than 400 major corporate headquarters, including 31 in
9312-729: Was 50.1% Non-Hispanic White, 23.4% were Hispanic, 15.5% were Non-Hispanic African Americans, 7.2% were Asian, 0.1% were Non-Hispanic Native American, 0.4% identified as “some other race,” and 3.2% were non-Hispanic multiracial. According to 2022 estimates from the American Community Survey , the largest ancestries in the Chicago metro area were Mexican (18%), African (17.7%), German (12.8%), Irish (9.9%), Polish (8%), Italian (5.9%), English (5.2%), Indian (2.7%), Puerto Rican (2.3%), Filipino (1.7%), Swedish (1.5%), and Chinese (1.4%). The suburbs, surrounded by easily annexed flat ground, have been expanding at
9409-408: Was cooperation in such undertakings as the construction of high schools. As the Chicago metropolitan area has grown, more counties have been partly or totally assimilated with the taking of each decennial census. Counties highlighted in gray were not included in the MSA for that census. The CSA totals in blue are the totals of all the counties listed above, regardless of whether they were included in
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