How did the Romans manage to effectively combine their whole empire into one unit?

In order to be a winner, one must think like a winner. In order for Rome to become a successful empire they knew they had to dig way down, and figure out what the most important aspect of an a great empire really is. Transportation. Rome built roads and water passes, as ways for information to flow to and from one people or country, to another. Also allowing trade, which meant growth economically. As a result of these roads, everything became much more organized and the empire as a whole became a stronger people. For the transportation of food, for example, there were mansions, ‘waiting rooms’ basically. Yet these waiting rooms consisted of many doors, some drivers, conductors, doctors, blacksmiths, wheelwrights, and more. Keeping everything in order and in its place could assure that “the empire be kept moving.” The seaways would provide purpose to the people alongside the profit and goods. The Romans built roads that were made to outlive their time, in fact one can still go walk on these roads today. Although, these roads served a greater purpose, they gave the common person and way in witch to walk to find they way to around the city. The roads were built to improve the empire, to endure centuries, and to Greaten the name of Rome.