RT journal article
T1 Crime beyond the edge: development of a tool to correct the edge effect on crime count
A1 Salafranca Barreda, Daniel
A1 Maldonado Guzmán, Diego Jesús
A1 Saldaña-Taboada, Patricia
A2 Derecho Internacional PúblicoPenal y Procesal
K1 Edge effect
K1 ArcGIS toolbox
K1 aggregated crime data
K1 artificially bounded space
K1 counting crime
AB The edge effect is a problem that can alter the results of some analyses, such as counting crime within a given geographic area. This article introduces a tool developed for ArcGIS toolbox, (ArcGIS Geographic Information System) to correct the border issues when using an aggregated crime data to artificially bounded space analytical units. It uses a method which considers those points located near the edge of the analysis unit, and avoids increasing the number of criminal points by assigning a value according to the distance of the edge. For this purpose, two functions based on decay with distance can be chosen: normal and linear. In order to show the performance of the tool, a sample of theft data occurred in 2016 in each census tract of Barcelona (Spain) district was used. These results show remarkable differences in the number of thefts in each census tract, before and after applying the edge correction. Some of the census tracts even went from experiencing no theft at all to having 5.5 or 4.5 incidents after correcting the edge effect. Finally, to demonstrate the benefits of the proposed tool, other strategies traditionally used as a solution for the edge effect were used. Then, the results are compared with those previously obtained. © 2022 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group, on behalf of Nanjing Normal University.
PB Taylor and Francis Ltd.
SN 1947-5691
YR 2022
FD 2022
LK http://hdl.handle.net/10498/27267
UL http://hdl.handle.net/10498/27267
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 14-nov-2026