Identifying the map representation in crime maps and its effect on viewer's perception

• Yamane Mayuko

  University of Tsukuba

• Amemiya Mamoru

  University of Tsukuba

• Shirakawa Mayu

  Nihon University

• Ohyama Tomoya

  University of Tsukuba

• Shimada Takahito

  National research institute of police science

Bibliographic Information

Other Title

• 犯罪発生マップにおける地図表現の実態と閲覧者の認知への影響
• Psychological experiment using multiple maps with different color schemes and classification methods
• 配色と分類手法の異なる複数の地図を用いた心理実験

Abstract

It is recommended to adopt kernel density maps (KD maps) to crime mapping on Japanese prefectual police's websites. Although visual impression of maps differs dependeing on the combination of color scheme and classification method, the appropriate combination has not been clarified. In this research, we surveyed the map representation in crime maps of the prefectual polices in Japan and identified the effects of the color scheme / classification method of KD maps on the location estimation of crime hotspots and the estimation of crime occurrence frequency by two experiments. As a result of the experiments, it was found that estimation of crime hotspots would be inaccurate and estimation of frequency of crime would be overestimated in the case of using the quantile classification. Based on the result, we discussed matters to be noted when designing crime maps using kernel density estimation.

Journal

• Journal of the City Planning Institute of Japan

  Journal of the City Planning Institute of Japan 55 (3), 385-392, 2020-10-25

  The City Planning Institute of Japan

Keywords

• Crime map
• Visual perception
• Map design
• Experiment
• Hotspot

Details

• CRID: 1390849376466396544
• NII Article ID: 130007930174
• DOI: 10.11361/journalcpij.55.385
• ISSN: 21850593
• ISSN: 09160647
• Web Site: https://www.jstage.jst.go.jp/article/journalcpij/55/3/55_385/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed