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100 _a D’Autilia, Roberto
_945702
245 _aShaping ideal cities: The graph representation of the urban utopia
260 _bSage,
_c2019.
300 _aVol 46, Issue 3, 2019,(423-444 p.)
520 _aThe ideal Renaissance city is designed as a star-shaped fortress, where the streets and squares are organized to speed the movement of people and soldiers. Symmetry and accessibility represent the key features for the organization of the urban space. The resulting city is hierarchized and does not always guarantee an optimal degree of connectivity. Starting from the space syntax definition, we suggest a method to compute urban graphs from the Euclidean representation, the corresponding line graph and the contraction of nodes with the same urban function. We analyze the urban graphs of five historic cities and compare the analysis with the corresponding results from space syntax. Analysis of the spectral gap and the relative asymmetry distribution show a similar structure for these cities. The irregular or reticular housing structure seems to ensure connectivity and accessibility more than the regular grids. However, connectivity is ensured by the most peripheral streets, which in the space syntax representation play a marginal role.
650 _aIdeal city,
_945703
650 _agraph theory,
_945704
650 _aspace syntax
_945705
700 _aSpada, Marco
_945706
773 0 _011590
_915512
_dSage 2019.
_t Environment and Planning B: Urban Analytics and City Science
856 _uhttps://doi.org/10.1177/2399808317716163
942 _2ddc
_cART