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A 2009 study [55] suggests that land use patterns play a significant role in traffic safety and should be considered in conjunction with the network pattern. While all intersection types in general reduce the incidence of fatal crashes, four-way intersections, which occur regularly in a grid, increase total and injurious crashes significantly.
Urban design is an approach to the design of buildings and the spaces between them that focuses on specific design processes and outcomes. In addition to designing and shaping the physical features of towns, cities , and regional spaces, urban design considers 'bigger picture' issues of economic, social and environmental value and social design.
Arthur Gallion (June 30, 1902 – July 18, 1978) was an American architect. He was the dean of architecture at the University of Southern California from 1945 to 1964. His co-authored The Urban Pattern: City Planning and Design "became the standard textbook in the field".
A Pattern Language: Towns, Buildings, Construction is a 1977 book on architecture, urban design, and community livability.It was authored by Christopher Alexander, Sara Ishikawa and Murray Silverstein of the Center for Environmental Structure of Berkeley, California, with writing credits also to Max Jacobson, Ingrid Fiksdahl-King and Shlomo Angel.
Figure and Ground theory is founded on the study of the relationship of land coverage of buildings as solid mass (figure) to open voids (ground) Each urban environment has an existing pattern of solid and voids, and figure and ground approach to spatial design is an attempt to manipulate these relationships by adding to, subtracting from, or ...
The creation of the Radburn pattern is attributed to Clarence Stein but has a lineage of ideas that preceded it in Raymond Unwin and Barry Parker's work that included the use of cul-de-sac and crescent street types. In contrast to the scarcity of records that obscures the original rationale for the grid, the reasons for the Radburn pattern have ...
Permeability is generally considered a positive attribute of an urban design, as it permits ease of movement and avoids severing neighbourhoods. Urban forms which lack permeability, e.g. those severed by arterial roads, or with many long culs-de-sac, are considered to discourage movement on foot and encourage longer journeys by car. There is ...
Walkable, mixed use urban villages are encouraged over single-function blocks, linked by motor ways, and surrounded by parking lots. An abiding axiom of urban planning, urban design and city planning has been the promotion of people friendly places, pedestrian walkways and public domains where people can meet freely. These can be parks, gardens ...