This dataset includes the final Technical Note and accompanying GIS datasets delivered by Cardno and UNSW for their proof-of-concept Passive Surveillance Index (PSI) trial in Parramatta, through TfNSW’s Safety After Dark Innovation Challenge (SADIC). The PSI scores walking routes based on quantifiable indicators. The tool may be a starting point for planners to make informed decisions on how safe cities may factor passive surveillance into their design. The [web map](https://cardnoanz.maps.arcgis.com/apps/webappviewer/index.html?id=82110546dbce47f58a4bbb47e94a6779) visually displays the PSI for different times of the night across the trial area. This website works best using the Google Chrome browser. Contact: Elizabeth Muscat, [elizabeth.muscat@cardno.com.au](mailto:elizabeth.muscat@cardno.com.au) Output: the SADIC PSI Data zip file and technical report