Streetcorner on:
[Wikipedia]
[Google]
[Amazon]
A streetcorner or street corner is the location which lies adjacent to an 
intersection
In mathematics, the intersection of two or more objects is another object consisting of everything that is contained in all of the objects simultaneously. For example, in Euclidean geometry, when two lines in a plane are not parallel, their ...
of two road
A road is a thoroughfare used primarily for movement of traffic. Roads differ from streets, whose primary use is local access. They also differ from stroads, which combine the features of streets and roads. Most modern roads are paved.
Th ...
s. Such locations are important in terms of local planning and commerce, usually being the locations of street signs and lamp posts, as well as being a prime spot to locate a business due to visibility and accessibility from traffic going along either of the adjacent streets. One source suggests that this is so for a facility combining two purposes, like an automotive showroom that provides repair services as well: "For all these types of buildings, property on a street corner is most desirable as separate entrances are most easily provided for." Cross walk
A pedestrian crossing (or crosswalk in American and Canadian English) is a place designated for pedestrians to cross a road, street or avenue. The term "pedestrian crossing" is also used in the Vienna and Geneva Conventions, both of which pert ...
s are often located at street corners as well.
Due to this visibility, street-corners are the choice location for activities ranging from panhandling to prostitution
Prostitution is a type of sex work that involves engaging in sexual activity in exchange for payment. The definition of "sexual activity" varies, and is often defined as an activity requiring physical contact (e.g., sexual intercourse, no ...
to protests
A protest (also called a demonstration, remonstration, or remonstrance) is a public act of objection, disapproval or dissent against political advantage. Protests can be thought of as acts of cooperation in which numerous people cooperate ...
to petition
A petition is a request to do something, most commonly addressed to a government official or public entity. Petitions to a deity are a form of prayer called supplication.
In the colloquial sense, a petition is a document addressed to an officia ...
signature drives, hence the term "street-corner politics". This makes street-corners a good location to observe human activity, for purposes of learning what environmental structures best fit that activity.Jon Lang, ''Urban Design: The American Experience'', page 310, 1994. Sidewalks at street corners tend to be rounded, rather than coming to a point, for ease of traffic making turns at the intersection.
References
{{Commons category, Streetcorners Urban planning Streets and roads