If the only response to crime is repressive without managing/anticipating things way ahead, that do favour crime, it's not going to foster peace, neither a family/youth-friendly environment.
As the article series suggests, architecture alone _does_ influence individuals and groups experiences and behaviours. It's been studied and worked on for a long time [1] and it's worth studying further, reporting and repeating as the OP does very well.
1: see Jane Jacobs (The Death and Life of Great American Cities), Oscar Newman (Design Guidelines for Creating Defensible Space), C. Ray Jeffery (Crime Prevention Through Environmental Design), Alice Coleman, among others.