该报告的研究员通过各种途径，报告收集全球150座主要城市的闭路电视摄像探头的总数字。

Comparitech researchers collated a number of data resources and reports, including government reports, police websites, and news articles, to get some idea of the number of CCTV cameras in use in 150 major cities across the globe. We focused primarily on public CCTV—cameras used by government entities such as law enforcement.

Here are our key findings:

Hyderabad, Indore, Delhi, Singapore, Moscow, Baghdad, Seoul, St. Petersburg, London, and Los Angeles are the top 10 most surveilled cities outside of China (based on the number of cameras per 1,000 people)
Delhi, Seoul, Singapore, Hyderabad, New York, Moscow, London, Chennai, Mumbai, and Dhaka are the top 10 most surveilled cities outside of China (based on the number of cameras per square mile)
At the end of 2021, over one billion surveillance cameras are estimated to have been installed worldwide, according to IHS Markit’s latest report
We found little correlation between the number of public CCTV cameras and crime or safety




【 在 diamonddust 的大作中提到: 】
: 这个调查需要确定城市范围。
: 伦敦是世界监控摄像头密度最高的城市之一
: 英国科技研究网站Comparitech曾对全球120个城市的监控摄像头数量进行调查，发现伦敦的摄像头密度在全球排名第六位，每千人有62.77个
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修改:Aladdin FROM 171.43.249.*
FROM 171.43.249.*