The romans built many roads throughout their empire so the army could travel quickly. these roads were also used by traders. people traded within the empire as well as with other cultures outside the empire. the romans were responsible for building roads in europe and through parts of africa and asia. which of the following was a likely result of this large road network? a. trade resulted in the spread of roman culture to many societies. b. the romans became the first europeans to travel to china. c. contact with other cultures caused the roman republic to collapse. d. other cultures used the roads to attack many roman cities.