The small town of Marietta, Georgia, became a large industrial center after… The Defense Department built a research facility to develop an atomic bomb there.

The government built a military base to train soldiers there.

The J. A. Jones Construction Company built a shipyard to build knot ships there.

The Bell Aircraft Company built a production facility there.

Sandra lives in the heart of a large city. lately, there have been robberies on several of the streets near where sandra lives but none on her street. sandra and her neighbors believe that they have not seen any crime on their street because they know each other, notice when strangers or strange cars are in the neighborhood, and have a mix of old retired couples and young families who use the neighborhood at different times of the day. jane jacobs would see this as an example of: