Mass transit in the context of "Airline"

Commuting is periodically recurring travel between a place of residence and place of work or study, where the traveler, referred to as a commuter, leaves the boundary of their home community. By extension, it can sometimes be any regular or often repeated travel between locations, even when not work-related. The modes of travel, time taken and distance traveled in commuting varies widely across the globe. Most people in least-developed countries continue to walk to work. The cheapest method of commuting after walking is usually by bicycle, so this is common in low-income countries but is also increasingly practised by people in wealthier countries for environmental, health, and often time reasons. In middle-income countries, motorcycle commuting is very common.

The next technology adopted as countries develop is more dependent on location: in more populous, older cities, especially in Eurasia mass transit (rail, bus, etc.) predominates, while in smaller, younger cities, and large parts of North America and Australasia, commuting by personal automobile is more common. A small number of very wealthy people, and those working in remote locations around the world, also commute by air travel, often for a week or more at a time rather than the more typical daily commute. Transportation links that enable commuting also impact the physical layout of cities and regions, allowing a distinction to arise between mostly-residential suburbs and the more economically focused urban core of a city (process known as suburban sprawl), but the specifics of how that distinction is realized remain drastically different between societies, with Eurasian "suburbs" often being more densely populated than North American "urban cores".

An electric vehicle (EV) is any motorized vehicle whose propulsion is provided fully or mostly by electric power, via grid electricity or from onboard rechargeable batteries. EVs encompass a wide range of transportation modes, including road (electric cars, buses, trucks and personal transporters) and rail vehicles (electric trains, trams and monorails), electric boats and submersibles, electric aircraft (both fixed-wing and multirotors) and electric spacecraft.

Early electric vehicles first came into existence in the late 19th century, when the Second Industrial Revolution brought forth electrification and mass utilization of DC and AC electric motors. Using electricity was among the preferred methods for early motor vehicle propulsion as it provided a level of quietness, comfort and ease of operation that could not be achieved by the gasoline engine cars of the time, but range anxiety due to the limited energy storage offered by contemporary battery technologies hindered any mass adoption of electric vehicles as private transportation throughout the 20th century. Internal combustion engines (both gasoline and diesel engines) were the dominant propulsion mechanisms for cars and trucks for about 100 years, but electricity-powered locomotion remained commonplace in other vehicle types, such as overhead line-powered mass transit vehicles like electric multiple units, streetcars, monorails and trolley buses, as well as various small, low-speed, short-range battery-powered personal vehicles such as mobility scooters.

The Beijing Subway is the rapid transit system of Beijing Municipality that consists of 29 lines including 24 rapid transit lines, two airport rail links, one maglev line and two light rail tram lines, and 524 stations. The rail network extends 879 km (546 mi) across 12 urban and suburban districts of Beijing and into one district of Langfang in neighboring Hebei province. In December 2023, Beijing Subway became the world's longest metro system by route length, surpassing the Shanghai Metro. With 3.8484 billion trips delivered in 2018 (10.544 million trips per day) and single-day ridership record of 13.7538 million set on July 12, 2019, the Beijing Subway was the world's busiest metro system in the years immediately prior to the outbreak of the COVID-19 pandemic.

The Beijing Subway opened in 1971 and is the oldest metro system in China and on the mainland of East Asia. Before the system began its rapid expansion in 2002, the subway had only two lines. The existing network still cannot adequately meet the city's mass transit needs. Beijing Subway's extensive expansion plans call for 998.5 km (620.4 mi) of lines serving a projected 18.5 million trips every day when Phase 2 Construction Plan finished (around 2025). The most recent expansion came into effect on December 15, 2024, with the openings of Line 3 and Line 12 and an extension of the Changping line.

The Key System (or Key Route) was a privately owned company that provided mass transit in the cities of Oakland, Berkeley, Alameda, Emeryville, Piedmont, San Leandro, Richmond, Albany, and El Cerrito in the eastern San Francisco Bay Area from 1903 until 1960, when it was sold to a newly formed public agency, AC Transit. The Key System consisted of local streetcar and bus lines in the East Bay, and commuter rail and bus lines connecting the East Bay to San Francisco by a ferry pier on San Francisco Bay, later via the lower deck of the Bay Bridge. At its height during the 1940s, the Key System had over 66 miles (106 km) of track. The local streetcars were discontinued in 1948 and the commuter trains to San Francisco were discontinued in 1958. The Key System's territory is today served by BART and AC Transit bus service.

The New York State Department of Transportation (NYSDOT) is the department of the New York state government responsible for the development and operation of highways, railroads, mass transit systems, ports, waterways and aviation facilities in the U.S. state of New York.

Transit police (also known as transport police, railway police, railroad police and several other terms) are specialized police agencies employed either by a common carrier, such as a transit district, railway, railroad, bus line, or another mass transit provider or municipality, county, district, or state.

Transit law enforcement services may also be provided by a specialized unit within a larger local law enforcement agency. Their mandate is generally to prevent and investigate all crime committed against the carrier or its passengers and crime incidentally committed on or around the carrier's property.

A third rail, also known as a live rail, electric rail or conductor rail, is a method of providing electric power to a railway locomotive or train, through a semi-continuous rigid conductor placed alongside or between the rails of a railway track. It is used typically in a mass transit or rapid transit system, which has alignments in its own corridors, fully or almost fully segregated from the outside environment. Third-rail systems are usually supplied with direct current.

Modern tram systems with street running avoid the electrical injury risk of the exposed electric rail by implementing a segmented ground-level power supply, where each segment is electrified only while covered by a vehicle which is using its power.

Beautification is the process of making visual improvements to a town, city, or urban area. This most often involves planting trees, shrubbery, and other greenery, but frequently also includes adding decorative or historic-style street lights and other lighting and replacing broken pavement, often with brick or other natural materials. Old-fashioned cobblestones are sometimes used for crosswalks; they provide the additional benefit of slowing motorists.

Beautification projects are often undertaken by city councils to refurbish their downtown areas, in order to boost tourism or other commerce. Often, this is also spurred by broken sidewalks, which pose a safety hazard for pedestrians and potentially insurmountable obstacles for wheelchair users. These projects are frequently part of other larger projects such as construction, especially in conjunction with ones for transit, such as streets and roads and mass transit.

The Connecticut Department of Transportation (officially referred to as CTDOT, occasionally ConnDOT, and CDOT in rare instances) is responsible for the development and operation of highways, railroads, mass transit systems, ports and waterways in Connecticut.

CTDOT manages and maintains the state highway system. It oversees the Shore Line East and Hartford Line commuter rail systems under the CTrail brand, and owns the Connecticut section of the New Haven Line used by Metro-North Railroad and Amtrak Northeast Corridor services. CTDOT also oversees the CTtransit bus system, as well as the CTfastrak bus rapid transit service.