Which of the following contributes to urban sustainability in densely populated areas?

Enhanced public transportation systems significantly contribute to urban sustainability in densely populated areas by providing an efficient, reliable, and environmentally friendly mode of transport. By improving public transit, cities can reduce the reliance on private vehicles, which helps decrease air pollution and greenhouse gas emissions. This transition encourages more people to use public transit, thereby reducing traffic congestion, which can lead to a more efficient movement of goods and services.

Moreover, well-planned public transportation can lower the overall carbon footprint of a city, making it more sustainable. It also promotes equitable access to resources and opportunities, as it enables individuals in various socio-economic groups to travel affordably and conveniently throughout urban areas.

Sustainable public transportation systems often integrate with cycling and walking infrastructure, further supporting a healthy urban environment. Ultimately, investment in public transit helps create a more connected, livable, and sustainable urban landscape.