Urban spaces traditionally have been traffic corridors. This concept again considers only the concept of space as it is related to mass. Simonds also notes that we must plan our places for the use and enjoyment of people, recognizing that open space is people related, and should serve the needs of people. Speiregen has a two fold definition of space in the city. He distinguishes between 'urban space' and 'open space'.
Urban space is formal space, molded by building facades and the city's floor.
In fact, the condition of enclosure is important to his definition of space in the city. Basically, an urban space must be distinguished by a predominant characteristic, such as the quality of its enclosure, the quality of its detailed treatment or outfitting, and the activity that occurs in it. An urban space should, ideally, be enclosed by surrounding walls, have a floor which suits its purpose, and have a distinct purpose to serve. Scale, according to Speiregen, is defined not by the enclosure of buildings, but by trees, shrubs, rocks, and ground surface. For purposes of this study, we use the term urban open space, defined as outdoor space in an urban context, which allows for the free movement of people.