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100 _aMa, Ding
_945964
245 _aWhy topology matters in predicting human activities
260 _bSage
_c2019.
300 _aVol 46, Issue 7, 2019,(1297-1313 p.)
520 _aGeographic space is better understood through the topological relationship of the underlying streets (note: entire streets rather than street segments), which enables us to see scaling or fractal or living structure of far more less-connected streets than well-connected ones. It is this underlying scaling structure that makes human activities predictable, albeit in the sense of collective rather than individual human moving behavior. This topological analysis has not yet received its deserved attention in the literature, as many researchers continue to rely on segment analysis for predicting human activities. The segment analysis-based methods are essentially geometric, with a focus on geometric details of locations, lengths, and directions, and are unable to reveal the scaling property, which means they cannot be used for the prediction of human activities. We conducted a series of case studies using London streets and tweet location data, based on related concepts such as natural streets, and natural street segments (or street segments for short), axial lines, and axial line segments (or line segments for short). We found that natural streets are the best representation in terms of human activities or traffic prediction, followed by axial lines, and that neither street segments nor line segments bear a good correlation between network parameters and tweet locations. These findings point to the fact that the reason why space syntax based on axial lines, or the kind of topological analysis in general, works has little to do with individual human travel behavior or ways that humans conceptualize distances or spaces. Instead, it is the underlying scaling hierarchy of streets – numerous least-connected, a very few most-connected, and some in between the least- and most-connected – that makes human activities predictable.
650 _aTopological analysis,
_945965
650 _aspace syntax,
_945966
650 _a segment analysis,
_945967
650 _a natural streets,
_945968
650 _ascaling of geographic space
_945969
700 _aOmer, Itzhak
_935469
700 _aOsaragi, Toshihiro
_945970
700 _aSandberg, Mats
_945971
700 _aJiang, Bin
_945972
773 0 _011590
_915512
_dSage 2019.
_t Environment and Planning B: Urban Analytics and City Science
856 _uhttps://doi.org/10.1177/2399808318792268
942 _2ddc
_cART