TruliaÂ recently launched their insights page, which takes data and visualizes it in interesting ways. Their most recent visualization has to do with the safest and most dangerous times in their top 25 cities. They charted what time shootings, assaults, robberies, arson, burglaries, thefts and vandalism occur based on reported crime statistics. Some of their other recent data visualizations look at smartphone use and what American cities are most popular outside the US. It’s a fun site with well done data visualizations so be sure to check it out!
In San Francisco the most dangerous time is the early morning, roughly between midnight and 2am, peaking around 1am according to my eye. The overwhelming number of crimes are assaults, accounting for more than 2/3 of reported crime, with shootings coming in second at just under ten percent, followed by thefts, vandalism, robberies and burglaries.
How does San Francisco compare to other cities? While there were plenty of things that stood out, I was fascinated to see that Oakland, CA just across the bridge seems to have their quietest crime activity during the hours that are our peak activity. Which isn’t to imply that everyone from Oakland is coming over to rob us at 1am, but it seems curious that two cities so geographically close have such divergent crime trends. The other city that I thought had a really strange pattern was Indianapolis, which has this really strange sawtooth pattern between 9am and 9pm during the day.
I was also surprised to see that 9pm – midnight seemed to be the peak time for most cities, with crime generally starting to rise in the late morning and peaking before midnight. What trends stand out to you in this data? What are your favorite sites for tracking crime statistics and information? We’d love to hear from you in our comments!