Street, in urban planning and transportation, refers to a public thoroughfare with buildings on either side. It is typically paved and serves as a route for vehicular and pedestrian traffic. Streets play a crucial role in connecting different parts of a city and enabling the movement of people and goods. They are designed to ensure safety, efficiency, and accessibility for all users.

Streets are classified based on their function and the level of traffic they accommodate. Residential streets primarily serve local traffic and have lower speed limits. Arterial streets, on the other hand, handle higher volumes of traffic and connect major destinations. There are also collector streets, which serve as intermediaries between residential and arterial streets. Street design focuses on factors such as width, alignment, signage, and lighting to optimize traffic flow and enhance safety.

In addition to facilitating transportation, streets contribute to the aesthetic and social aspects of a city. Streetscaping involves designing and beautifying streetscapes through the addition of features like street furniture, trees, landscaping, and public art. These elements create a sense of place, improve walkability, and foster social interactions. Moreover, streets often serve as venues for various activities such as parades, festivals, and markets, further enriching the urban experience.

Over the years, there has been a shift towards designing streets that prioritize pedestrians and non-motorized modes of transportation. This concept, known as complete streets, aims to create a balanced and inclusive transportation network. Complete streets often incorporate features like wider sidewalks, bike lanes, crosswalks, and public transit facilities. By accommodating multiple modes of transportation, they promote healthier lifestyles, reduce traffic congestion, and enhance overall urban livability.