"Safe streets" as it applies to the general public happen when more vulnerable members of the population feel free to take public transit, walk, and bike.
This feeling could be created by enhancing environmental design, which includes increasing visibility of a space throughout all times of the day and making room for sitting areas.
The best way to perceive solutions to public safety is to envision cities not as voids and mazes for cops and robbers, but as "community living rooms."
A "living room" is every person's responsibility to maintain (even the guests), and a place to relax."
Thanks to Jason Cruz