Theory focuses on a person's bonds to society as a factor in preventing crime.​

"Social control " theory focuses on a person's bonds to society as a factor in preventing crime.

Social control theory contends that connections, responsibilities, qualities, and convictions support similarity.  

Social control theory depicts inward methods for social control. It contends that connections, responsibilities, qualities, and convictions energize congruity—if moral codes are disguised and people are integrated with more extensive networks, people will intentionally restrict freak acts. This understanding proposes the intensity of inner methods for control, for example, one's own cognizant, personality, and sensibilities about good and bad, are great in moderating the probability that one will go amiss from social standards.  

first, the romans stayed isolated because they had to defend their own territories from neighboring cities that were harassing them, like the etruscans. second, once the romans managed to defeat their neighbors, and started to expand their territory, they started to build roads and bridges. finally, now that the romans have covered their territory with roads functioning as highways, they could mobilize their legions faster to assemble larger military units in a specific place.