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As cities around the world face traffic problems, air pollution and climate change, the sustainability of public transport has become a critical issue. The subway has become one of the most environmentally friendly modes of public transportation and plays an important role in promoting sustainable urban mobility. In this article, we explore why subways are considered an environmentally friendly option and how they can contribute to the sustainable development of cities.

Emissions reduction

One of the most compelling environmentally friendly features of the subway is its ability to significantly reduce greenhouse gas emissions. Unlike cars, which rely on gasoline or diesel, subways generally run on electricity. This electrification allows for zero-emission operation in the tunnel and significantly reduces air pollution. Because subways are typically large and can carry several people at a time, they help reduce road traffic and further improve air quality.

Energy efficiency

Modern subway systems are highly energy efficient. The use of electric propulsion, regenerative braking and an efficient energy management system minimizes energy consumption per passenger kilometer. This is not only good for the environment, but also economical, as it is generally cheaper to operate a subway than a bus or private car.

Space savings

The subway takes up less space than the road network. This helps reduce land occupancy, which is critical in densely populated urban areas. Building subways requires less land than roads and highways, which helps preserve green space and prevent further urban sprawl.

Congestion Mitigation

The use of subways can help reduce traffic congestion in urban areas. Traffic congestion not only wastes time and frustrates commuters, but also increases energy consumption and air pollution. The subway offers a congestion-free alternative, providing efficient transportation in the city.

Promote public transport

A well-developed subway system can encourage people to use public transportation. When people have a reliable and efficient subway system, they are more likely to switch to public transportation and give up their cars. This helps to reduce personal emissions and reduce road congestion.

Future development

It is expected that the sustainability of future metropolitan areas will continue to improve. This can be achieved by using renewable energy to power subways, introducing energy-efficient vehicles, and expanding the subway network. Incorporating the subway system into an integrated transportation concept that also includes bike lanes, pedestrian zones, and other sustainable modes of transportation will also help to make transportation in the city more environmentally friendly.


Subways are one of the most environmentally friendly forms of public transportation. They help reduce emissions, increase energy efficiency, prevent traffic congestion, and promote sustainable mobility. At a time when climate change and air pollution are increasingly global challenges, metros are a key element in creating sustainable and livable cities. Their use not only protects the environment, but also helps improve the quality of life and health of the urban population.

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