What is one effect of using public transportation?

Public Transportation Reduces Air Pollution Approximately 85% of the greenhouse gas emissions that come from transportation are due to day-to-day commutes. By leaving the car at home, a person can save up to 20 pounds of carbon dioxide emissions every day.



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It is a lifeline for millions of Americans connecting them to people, places and possibilities. It also builds thriving communities, creates jobs, eases traffic congestion and promotes a cleaner environment. Investment in public transportation spurs both local and the national economy.

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Access to public transportation may also reduce health disparities and promote health equity by increasing access to healthier food options, medical care, vital services, and employment for communities that do not have equal access to these fundamental daily necessities.

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9 Benefits of Public Transportation
  • It benefits communities financially: ...
  • Public transportation reduces air pollution: ...
  • Increased fuel efficiency: ...
  • Reduced traffic congestion: ...
  • Saves money: ...
  • Increases mobility: ...
  • Frees up time: ...
  • Public transportation is safer:


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Transportation also leads to noise pollution, water pollution, and affects ecosystems through multiple direct and indirect interactions. With the continuous growth in transportation, increasingly shifting to high-speed transportation modes, these externalities are expected to grow.

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Challenges and Limitations
  • Peak-hour crowding.
  • Traffic congestion.
  • Inadequate service during off-peak hours, holidays, and weekends.
  • High infrastructure maintenance cost.
  • Increased risk of infectious diseases.
  • Long waiting times during peak hours.


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Did you know that riding public transportation not only helps with physical health, but with mental health too? Riding public transportation can reduce your stress levels in a few different ways: Driving can be a stressful way to commute - due to unpredictable traffic and parking situations.

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In a recent study at the University of California at Berkley, researchers discovered that commuters are more inclined to stop using public transit if they experience delays which can be blamed on the transit agency. (Most people will forgive other inconveniences such as traffic, emergencies or mechanical failures.)

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Modes of transportation allow people and goods to move across air, land and sea. People often move by human power, cars, and planes while goods are shipped by truck, rail, or ship.

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Public transit is a vital force for the American economy. The American Public Transportation Association estimates that 87% of trips directly benefit the local economy, with $1 invested in public transit believed to generate $5 in economic returns.

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Some typical benefits include universal accessibility for most citizens in the city, the absence of car maintenance fees, and being able to lower a community's pollution. Some of the drawbacks, however, include congested trains and buses, and erratic arrival and departure schedules.

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Along with reducing air pollution, public transportation is also more fuel efficient per passenger mile, which contributes to an overall decrease in the amount of energy necessary for transportation. APTA states that public transportation in the US is responsible for saving 4.2 billion gallons of gasoline each year.

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Many do not realize that transportation is a socioeconomic issue just as much as it is about pollution or traffic congestion.

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Congestion is one of the most prevalent transport challenges in large urban agglomerations.

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