Public transportation can lead to reduced traffic congestion, improved public health, and reduced greenhouse gas emissions, but it does not increase air pollution.

Buses are the most common mode of public transportation in most cities due to their flexibility and affordability.

Tokyo has the most extensive public transportation system in the world, with over 13,000 miles of rail lines and 2,000 bus routes.

Rapid transit is a public transportation system that uses dedicated lanes or tracks to allow trains or buses to travel at higher speeds.

Light rail is not a type of rapid transit, as it typically operates on surface streets and does not have dedicated lanes or tracks.

Ride-sharing, carpooling, and vanpooling are all types of public transportation systems that use shared vehicles.

Ride-sharing can lead to reduced traffic congestion, lower transportation costs, and improved public health, but it does not increase air pollution.

Electrified public transportation, electric mass transit, and zero-emission public transportation all refer to public transportation systems that use electric vehicles.

Electrified public transportation can lead to reduced air pollution, lower operating costs, and improved energy efficiency, but it does not increase noise pollution.

Sustainable public transportation, green public transportation, and eco-friendly public transportation all refer to public transportation systems that use renewable energy sources.

Sustainable public transportation can lead to reduced greenhouse gas emissions, improved air quality, and lower energy costs, but it does not increase traffic congestion.

Accessible public transportation, universal design public transportation, and barrier-free public transportation all refer to public transportation systems that are designed to be accessible to people with disabilities.

Accessible public transportation can lead to improved mobility for people with disabilities, increased social inclusion, and improved public health, but it does not reduce transportation costs.

Affordable public transportation, low-income public transportation, and subsidized public transportation all refer to public transportation systems that are designed to be affordable for low-income individuals.

Affordable public transportation can lead to improved mobility for low-income individuals, increased social inclusion, and reduced transportation costs, but it does not increase traffic congestion.