Final answer:
The advantages of mass transit rely on high population densities near transit stops, leading to reduced traffic congestion, lower emissions, and improved air quality in urban areas. High population densities also support the financial viability of mass transit systems and promote mixed-use neighborhoods.
Step-by-step explanation:
The advantages of mass transit rely on the presence of high population densities in close proximity to transit stops because it allows for greater efficiency and convenience. When large numbers of people live near transit stops, it increases the potential ridership and reduces the need for personal vehicles. This leads to reduced traffic congestion, lower greenhouse gas emissions, and improved air quality in urban areas.
Additionally, high population densities can support the financial viability of mass transit systems. With more people using public transportation, there is a higher demand for fares, which helps to offset the operational costs. This allows for the provision of a wider range of transit services and the maintenance of an extensive transit network.
Furthermore, the presence of high population densities near transit stops encourages the development of mixed-use neighborhoods, where residential, commercial, and recreational activities coexist. This promotes a vibrant urban environment and enhances the quality of life for residents by providing them with easy access to essential amenities and cultural attractions.